Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations
Abstract Radio observations being insensitive to the dust-obscuration, have been exploited to unveil the population of active galactic nuclei residing in galaxies with large dust content. In this paper, we investigate the radio characteristics of 321 dust-obscured galaxies (DOGs; %$S_{24~{\mu }\math...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Kayal, Abhijit [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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| Schlagwörter: |
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| Anmerkung: |
© Indian Academy of Sciences 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| Übergeordnetes Werk: |
Enthalten in: Journal of astrophysics and astronomy - Bangalore : Springer India, 1980, 43(2022), 2 vom: 03. Nov. |
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| Übergeordnetes Werk: |
volume:43 ; year:2022 ; number:2 ; day:03 ; month:11 |
| Links: |
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| DOI / URN: |
10.1007/s12036-022-09873-0 |
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| Katalog-ID: |
SPR048529273 |
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| 245 | 1 | 0 | |a Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations |
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| 520 | |a Abstract Radio observations being insensitive to the dust-obscuration, have been exploited to unveil the population of active galactic nuclei residing in galaxies with large dust content. In this paper, we investigate the radio characteristics of 321 dust-obscured galaxies (DOGs; %$S_{24~{\mu }\mathrm{m}}/S_{{ r}-\mathrm{band}}\,\ge \, 1000%$) by using mainly deep band-3 (250–550 MHz) observations from the upgraded giant metrewave radio telescope (uGMRT) and 1.5 GHz Jansky very large array (JVLA) observations. We find that for our sample of DOGs, deep (median noise-rms %$=%$ 30 %$\mu %$Jy beam%$^{-1}%$) 400 MHz band-3 uGMRT observations yield the highest detection rate (28%) among those obtained with the JVLA, and low frequency array (LOFAR) radio observations and XMM-N X-ray observations. The radio characteristics of our sample sources, i.e., linear extent (<40 kpc at %$z<1.2%$), bimodal spectral index (%${\alpha }_\mathrm{400~MHz}^\mathrm{1.5~GHz}%$) distribution and the radio luminosities (%$L_\mathrm{1.5~GHz}>5.0 \times 10^{23}%$ W Hz%$^{-1}%$), suggest them to be mainly consist of compact-steep-spectrum (CSS) or peaked-spectrum (PS) sources representing an early phase of the AGN-jet activity in dust-obscured environments. With stacking, we find the existence of faint radio emission (%$S_\mathrm{400~MHz} = 72.9~\mu %$Jy beam%$^{-1}%$ and %$S_\mathrm{1.5~GHz}= 29~\mu %$Jy beam%$^{-1}%$ with signal-to-noise ratio %$\sim %$20) in otherwise radio-undetected DOGs. Our study reveals the faint emission at a few tens of %$\mu %$Jy level in high-z DOGs, which can be used as a test-bed for the deeper radio continuum surveys planned with the square-kilometer array (SKA) and its pathfinders. | ||
| 650 | 4 | |a Galaxies: active |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a radio continuum: galaxies |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a radio: jets |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Singh, Veeresh |4 aut | |
| 700 | 1 | |a Chandra, C. H. Ishwara |4 aut | |
| 700 | 1 | |a Wadadekar, Yogesh |4 aut | |
| 700 | 1 | |a Dutta, Sushant |4 aut | |
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10.1007/s12036-022-09873-0 doi (DE-627)SPR048529273 (SPR)s12036-022-09873-0-e DE-627 ger DE-627 rakwb eng Kayal, Abhijit verfasserin (orcid)0000-0001-9851-8243 aut Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Indian Academy of Sciences 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Radio observations being insensitive to the dust-obscuration, have been exploited to unveil the population of active galactic nuclei residing in galaxies with large dust content. In this paper, we investigate the radio characteristics of 321 dust-obscured galaxies (DOGs; %$S_{24~{\mu }\mathrm{m}}/S_{{ r}-\mathrm{band}}\,\ge \, 1000%$) by using mainly deep band-3 (250–550 MHz) observations from the upgraded giant metrewave radio telescope (uGMRT) and 1.5 GHz Jansky very large array (JVLA) observations. We find that for our sample of DOGs, deep (median noise-rms %$=%$ 30 %$\mu %$Jy beam%$^{-1}%$) 400 MHz band-3 uGMRT observations yield the highest detection rate (28%) among those obtained with the JVLA, and low frequency array (LOFAR) radio observations and XMM-N X-ray observations. The radio characteristics of our sample sources, i.e., linear extent (<40 kpc at %$z<1.2%$), bimodal spectral index (%${\alpha }_\mathrm{400~MHz}^\mathrm{1.5~GHz}%$) distribution and the radio luminosities (%$L_\mathrm{1.5~GHz}>5.0 \times 10^{23}%$ W Hz%$^{-1}%$), suggest them to be mainly consist of compact-steep-spectrum (CSS) or peaked-spectrum (PS) sources representing an early phase of the AGN-jet activity in dust-obscured environments. With stacking, we find the existence of faint radio emission (%$S_\mathrm{400~MHz} = 72.9~\mu %$Jy beam%$^{-1}%$ and %$S_\mathrm{1.5~GHz}= 29~\mu %$Jy beam%$^{-1}%$ with signal-to-noise ratio %$\sim %$20) in otherwise radio-undetected DOGs. Our study reveals the faint emission at a few tens of %$\mu %$Jy level in high-z DOGs, which can be used as a test-bed for the deeper radio continuum surveys planned with the square-kilometer array (SKA) and its pathfinders. Galaxies: active (dpeaa)DE-He213 radio continuum: galaxies (dpeaa)DE-He213 radio: jets (dpeaa)DE-He213 Singh, Veeresh aut Chandra, C. H. Ishwara aut Wadadekar, Yogesh aut Dutta, Sushant aut Enthalten in Journal of astrophysics and astronomy Bangalore : Springer India, 1980 43(2022), 2 vom: 03. Nov. (DE-627)358454131 (DE-600)2096381-6 0973-7758 nnns volume:43 year:2022 number:2 day:03 month:11 https://dx.doi.org/10.1007/s12036-022-09873-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 43 2022 2 03 11 |
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10.1007/s12036-022-09873-0 doi (DE-627)SPR048529273 (SPR)s12036-022-09873-0-e DE-627 ger DE-627 rakwb eng Kayal, Abhijit verfasserin (orcid)0000-0001-9851-8243 aut Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Indian Academy of Sciences 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Radio observations being insensitive to the dust-obscuration, have been exploited to unveil the population of active galactic nuclei residing in galaxies with large dust content. In this paper, we investigate the radio characteristics of 321 dust-obscured galaxies (DOGs; %$S_{24~{\mu }\mathrm{m}}/S_{{ r}-\mathrm{band}}\,\ge \, 1000%$) by using mainly deep band-3 (250–550 MHz) observations from the upgraded giant metrewave radio telescope (uGMRT) and 1.5 GHz Jansky very large array (JVLA) observations. We find that for our sample of DOGs, deep (median noise-rms %$=%$ 30 %$\mu %$Jy beam%$^{-1}%$) 400 MHz band-3 uGMRT observations yield the highest detection rate (28%) among those obtained with the JVLA, and low frequency array (LOFAR) radio observations and XMM-N X-ray observations. The radio characteristics of our sample sources, i.e., linear extent (<40 kpc at %$z<1.2%$), bimodal spectral index (%${\alpha }_\mathrm{400~MHz}^\mathrm{1.5~GHz}%$) distribution and the radio luminosities (%$L_\mathrm{1.5~GHz}>5.0 \times 10^{23}%$ W Hz%$^{-1}%$), suggest them to be mainly consist of compact-steep-spectrum (CSS) or peaked-spectrum (PS) sources representing an early phase of the AGN-jet activity in dust-obscured environments. With stacking, we find the existence of faint radio emission (%$S_\mathrm{400~MHz} = 72.9~\mu %$Jy beam%$^{-1}%$ and %$S_\mathrm{1.5~GHz}= 29~\mu %$Jy beam%$^{-1}%$ with signal-to-noise ratio %$\sim %$20) in otherwise radio-undetected DOGs. Our study reveals the faint emission at a few tens of %$\mu %$Jy level in high-z DOGs, which can be used as a test-bed for the deeper radio continuum surveys planned with the square-kilometer array (SKA) and its pathfinders. Galaxies: active (dpeaa)DE-He213 radio continuum: galaxies (dpeaa)DE-He213 radio: jets (dpeaa)DE-He213 Singh, Veeresh aut Chandra, C. H. Ishwara aut Wadadekar, Yogesh aut Dutta, Sushant aut Enthalten in Journal of astrophysics and astronomy Bangalore : Springer India, 1980 43(2022), 2 vom: 03. Nov. (DE-627)358454131 (DE-600)2096381-6 0973-7758 nnns volume:43 year:2022 number:2 day:03 month:11 https://dx.doi.org/10.1007/s12036-022-09873-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 43 2022 2 03 11 |
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10.1007/s12036-022-09873-0 doi (DE-627)SPR048529273 (SPR)s12036-022-09873-0-e DE-627 ger DE-627 rakwb eng Kayal, Abhijit verfasserin (orcid)0000-0001-9851-8243 aut Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Indian Academy of Sciences 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Radio observations being insensitive to the dust-obscuration, have been exploited to unveil the population of active galactic nuclei residing in galaxies with large dust content. In this paper, we investigate the radio characteristics of 321 dust-obscured galaxies (DOGs; %$S_{24~{\mu }\mathrm{m}}/S_{{ r}-\mathrm{band}}\,\ge \, 1000%$) by using mainly deep band-3 (250–550 MHz) observations from the upgraded giant metrewave radio telescope (uGMRT) and 1.5 GHz Jansky very large array (JVLA) observations. We find that for our sample of DOGs, deep (median noise-rms %$=%$ 30 %$\mu %$Jy beam%$^{-1}%$) 400 MHz band-3 uGMRT observations yield the highest detection rate (28%) among those obtained with the JVLA, and low frequency array (LOFAR) radio observations and XMM-N X-ray observations. The radio characteristics of our sample sources, i.e., linear extent (<40 kpc at %$z<1.2%$), bimodal spectral index (%${\alpha }_\mathrm{400~MHz}^\mathrm{1.5~GHz}%$) distribution and the radio luminosities (%$L_\mathrm{1.5~GHz}>5.0 \times 10^{23}%$ W Hz%$^{-1}%$), suggest them to be mainly consist of compact-steep-spectrum (CSS) or peaked-spectrum (PS) sources representing an early phase of the AGN-jet activity in dust-obscured environments. With stacking, we find the existence of faint radio emission (%$S_\mathrm{400~MHz} = 72.9~\mu %$Jy beam%$^{-1}%$ and %$S_\mathrm{1.5~GHz}= 29~\mu %$Jy beam%$^{-1}%$ with signal-to-noise ratio %$\sim %$20) in otherwise radio-undetected DOGs. Our study reveals the faint emission at a few tens of %$\mu %$Jy level in high-z DOGs, which can be used as a test-bed for the deeper radio continuum surveys planned with the square-kilometer array (SKA) and its pathfinders. Galaxies: active (dpeaa)DE-He213 radio continuum: galaxies (dpeaa)DE-He213 radio: jets (dpeaa)DE-He213 Singh, Veeresh aut Chandra, C. H. Ishwara aut Wadadekar, Yogesh aut Dutta, Sushant aut Enthalten in Journal of astrophysics and astronomy Bangalore : Springer India, 1980 43(2022), 2 vom: 03. Nov. (DE-627)358454131 (DE-600)2096381-6 0973-7758 nnns volume:43 year:2022 number:2 day:03 month:11 https://dx.doi.org/10.1007/s12036-022-09873-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 43 2022 2 03 11 |
| allfieldsGer |
10.1007/s12036-022-09873-0 doi (DE-627)SPR048529273 (SPR)s12036-022-09873-0-e DE-627 ger DE-627 rakwb eng Kayal, Abhijit verfasserin (orcid)0000-0001-9851-8243 aut Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Indian Academy of Sciences 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Radio observations being insensitive to the dust-obscuration, have been exploited to unveil the population of active galactic nuclei residing in galaxies with large dust content. In this paper, we investigate the radio characteristics of 321 dust-obscured galaxies (DOGs; %$S_{24~{\mu }\mathrm{m}}/S_{{ r}-\mathrm{band}}\,\ge \, 1000%$) by using mainly deep band-3 (250–550 MHz) observations from the upgraded giant metrewave radio telescope (uGMRT) and 1.5 GHz Jansky very large array (JVLA) observations. We find that for our sample of DOGs, deep (median noise-rms %$=%$ 30 %$\mu %$Jy beam%$^{-1}%$) 400 MHz band-3 uGMRT observations yield the highest detection rate (28%) among those obtained with the JVLA, and low frequency array (LOFAR) radio observations and XMM-N X-ray observations. The radio characteristics of our sample sources, i.e., linear extent (<40 kpc at %$z<1.2%$), bimodal spectral index (%${\alpha }_\mathrm{400~MHz}^\mathrm{1.5~GHz}%$) distribution and the radio luminosities (%$L_\mathrm{1.5~GHz}>5.0 \times 10^{23}%$ W Hz%$^{-1}%$), suggest them to be mainly consist of compact-steep-spectrum (CSS) or peaked-spectrum (PS) sources representing an early phase of the AGN-jet activity in dust-obscured environments. With stacking, we find the existence of faint radio emission (%$S_\mathrm{400~MHz} = 72.9~\mu %$Jy beam%$^{-1}%$ and %$S_\mathrm{1.5~GHz}= 29~\mu %$Jy beam%$^{-1}%$ with signal-to-noise ratio %$\sim %$20) in otherwise radio-undetected DOGs. Our study reveals the faint emission at a few tens of %$\mu %$Jy level in high-z DOGs, which can be used as a test-bed for the deeper radio continuum surveys planned with the square-kilometer array (SKA) and its pathfinders. Galaxies: active (dpeaa)DE-He213 radio continuum: galaxies (dpeaa)DE-He213 radio: jets (dpeaa)DE-He213 Singh, Veeresh aut Chandra, C. H. Ishwara aut Wadadekar, Yogesh aut Dutta, Sushant aut Enthalten in Journal of astrophysics and astronomy Bangalore : Springer India, 1980 43(2022), 2 vom: 03. Nov. (DE-627)358454131 (DE-600)2096381-6 0973-7758 nnns volume:43 year:2022 number:2 day:03 month:11 https://dx.doi.org/10.1007/s12036-022-09873-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 43 2022 2 03 11 |
| allfieldsSound |
10.1007/s12036-022-09873-0 doi (DE-627)SPR048529273 (SPR)s12036-022-09873-0-e DE-627 ger DE-627 rakwb eng Kayal, Abhijit verfasserin (orcid)0000-0001-9851-8243 aut Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Indian Academy of Sciences 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Radio observations being insensitive to the dust-obscuration, have been exploited to unveil the population of active galactic nuclei residing in galaxies with large dust content. In this paper, we investigate the radio characteristics of 321 dust-obscured galaxies (DOGs; %$S_{24~{\mu }\mathrm{m}}/S_{{ r}-\mathrm{band}}\,\ge \, 1000%$) by using mainly deep band-3 (250–550 MHz) observations from the upgraded giant metrewave radio telescope (uGMRT) and 1.5 GHz Jansky very large array (JVLA) observations. We find that for our sample of DOGs, deep (median noise-rms %$=%$ 30 %$\mu %$Jy beam%$^{-1}%$) 400 MHz band-3 uGMRT observations yield the highest detection rate (28%) among those obtained with the JVLA, and low frequency array (LOFAR) radio observations and XMM-N X-ray observations. The radio characteristics of our sample sources, i.e., linear extent (<40 kpc at %$z<1.2%$), bimodal spectral index (%${\alpha }_\mathrm{400~MHz}^\mathrm{1.5~GHz}%$) distribution and the radio luminosities (%$L_\mathrm{1.5~GHz}>5.0 \times 10^{23}%$ W Hz%$^{-1}%$), suggest them to be mainly consist of compact-steep-spectrum (CSS) or peaked-spectrum (PS) sources representing an early phase of the AGN-jet activity in dust-obscured environments. With stacking, we find the existence of faint radio emission (%$S_\mathrm{400~MHz} = 72.9~\mu %$Jy beam%$^{-1}%$ and %$S_\mathrm{1.5~GHz}= 29~\mu %$Jy beam%$^{-1}%$ with signal-to-noise ratio %$\sim %$20) in otherwise radio-undetected DOGs. Our study reveals the faint emission at a few tens of %$\mu %$Jy level in high-z DOGs, which can be used as a test-bed for the deeper radio continuum surveys planned with the square-kilometer array (SKA) and its pathfinders. Galaxies: active (dpeaa)DE-He213 radio continuum: galaxies (dpeaa)DE-He213 radio: jets (dpeaa)DE-He213 Singh, Veeresh aut Chandra, C. H. Ishwara aut Wadadekar, Yogesh aut Dutta, Sushant aut Enthalten in Journal of astrophysics and astronomy Bangalore : Springer India, 1980 43(2022), 2 vom: 03. Nov. (DE-627)358454131 (DE-600)2096381-6 0973-7758 nnns volume:43 year:2022 number:2 day:03 month:11 https://dx.doi.org/10.1007/s12036-022-09873-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 43 2022 2 03 11 |
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Enthalten in Journal of astrophysics and astronomy 43(2022), 2 vom: 03. Nov. volume:43 year:2022 number:2 day:03 month:11 |
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Kayal, Abhijit @@aut@@ Singh, Veeresh @@aut@@ Chandra, C. H. Ishwara @@aut@@ Wadadekar, Yogesh @@aut@@ Dutta, Sushant @@aut@@ |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR048529273</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230509115130.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">221104s2022 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s12036-022-09873-0</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR048529273</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s12036-022-09873-0-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Kayal, Abhijit</subfield><subfield code="e">verfasserin</subfield><subfield code="0">(orcid)0000-0001-9851-8243</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2022</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© Indian Academy of Sciences 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract Radio observations being insensitive to the dust-obscuration, have been exploited to unveil the population of active galactic nuclei residing in galaxies with large dust content. In this paper, we investigate the radio characteristics of 321 dust-obscured galaxies (DOGs; %$S_{24~{\mu }\mathrm{m}}/S_{{ r}-\mathrm{band}}\,\ge \, 1000%$) by using mainly deep band-3 (250–550 MHz) observations from the upgraded giant metrewave radio telescope (uGMRT) and 1.5 GHz Jansky very large array (JVLA) observations. We find that for our sample of DOGs, deep (median noise-rms %$=%$ 30 %$\mu %$Jy beam%$^{-1}%$) 400 MHz band-3 uGMRT observations yield the highest detection rate (28%) among those obtained with the JVLA, and low frequency array (LOFAR) radio observations and XMM-N X-ray observations. The radio characteristics of our sample sources, i.e., linear extent (<40 kpc at %$z<1.2%$), bimodal spectral index (%${\alpha }_\mathrm{400~MHz}^\mathrm{1.5~GHz}%$) distribution and the radio luminosities (%$L_\mathrm{1.5~GHz}>5.0 \times 10^{23}%$ W Hz%$^{-1}%$), suggest them to be mainly consist of compact-steep-spectrum (CSS) or peaked-spectrum (PS) sources representing an early phase of the AGN-jet activity in dust-obscured environments. With stacking, we find the existence of faint radio emission (%$S_\mathrm{400~MHz} = 72.9~\mu %$Jy beam%$^{-1}%$ and %$S_\mathrm{1.5~GHz}= 29~\mu %$Jy beam%$^{-1}%$ with signal-to-noise ratio %$\sim %$20) in otherwise radio-undetected DOGs. Our study reveals the faint emission at a few tens of %$\mu %$Jy level in high-z DOGs, which can be used as a test-bed for the deeper radio continuum surveys planned with the square-kilometer array (SKA) and its pathfinders.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Galaxies: active</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">radio continuum: galaxies</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">radio: jets</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Singh, Veeresh</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chandra, C. H. 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Kayal, Abhijit |
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Kayal, Abhijit misc Galaxies: active misc radio continuum: galaxies misc radio: jets Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations |
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Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations Galaxies: active (dpeaa)DE-He213 radio continuum: galaxies (dpeaa)DE-He213 radio: jets (dpeaa)DE-He213 |
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Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations |
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Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations |
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Kayal, Abhijit |
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Kayal, Abhijit Singh, Veeresh Chandra, C. H. Ishwara Wadadekar, Yogesh Dutta, Sushant |
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detection of radio-agn in dust-obscured galaxies using deep ugmrt radio continuum observations |
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Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations |
| abstract |
Abstract Radio observations being insensitive to the dust-obscuration, have been exploited to unveil the population of active galactic nuclei residing in galaxies with large dust content. In this paper, we investigate the radio characteristics of 321 dust-obscured galaxies (DOGs; %$S_{24~{\mu }\mathrm{m}}/S_{{ r}-\mathrm{band}}\,\ge \, 1000%$) by using mainly deep band-3 (250–550 MHz) observations from the upgraded giant metrewave radio telescope (uGMRT) and 1.5 GHz Jansky very large array (JVLA) observations. We find that for our sample of DOGs, deep (median noise-rms %$=%$ 30 %$\mu %$Jy beam%$^{-1}%$) 400 MHz band-3 uGMRT observations yield the highest detection rate (28%) among those obtained with the JVLA, and low frequency array (LOFAR) radio observations and XMM-N X-ray observations. The radio characteristics of our sample sources, i.e., linear extent (<40 kpc at %$z<1.2%$), bimodal spectral index (%${\alpha }_\mathrm{400~MHz}^\mathrm{1.5~GHz}%$) distribution and the radio luminosities (%$L_\mathrm{1.5~GHz}>5.0 \times 10^{23}%$ W Hz%$^{-1}%$), suggest them to be mainly consist of compact-steep-spectrum (CSS) or peaked-spectrum (PS) sources representing an early phase of the AGN-jet activity in dust-obscured environments. With stacking, we find the existence of faint radio emission (%$S_\mathrm{400~MHz} = 72.9~\mu %$Jy beam%$^{-1}%$ and %$S_\mathrm{1.5~GHz}= 29~\mu %$Jy beam%$^{-1}%$ with signal-to-noise ratio %$\sim %$20) in otherwise radio-undetected DOGs. Our study reveals the faint emission at a few tens of %$\mu %$Jy level in high-z DOGs, which can be used as a test-bed for the deeper radio continuum surveys planned with the square-kilometer array (SKA) and its pathfinders. © Indian Academy of Sciences 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstractGer |
Abstract Radio observations being insensitive to the dust-obscuration, have been exploited to unveil the population of active galactic nuclei residing in galaxies with large dust content. In this paper, we investigate the radio characteristics of 321 dust-obscured galaxies (DOGs; %$S_{24~{\mu }\mathrm{m}}/S_{{ r}-\mathrm{band}}\,\ge \, 1000%$) by using mainly deep band-3 (250–550 MHz) observations from the upgraded giant metrewave radio telescope (uGMRT) and 1.5 GHz Jansky very large array (JVLA) observations. We find that for our sample of DOGs, deep (median noise-rms %$=%$ 30 %$\mu %$Jy beam%$^{-1}%$) 400 MHz band-3 uGMRT observations yield the highest detection rate (28%) among those obtained with the JVLA, and low frequency array (LOFAR) radio observations and XMM-N X-ray observations. The radio characteristics of our sample sources, i.e., linear extent (<40 kpc at %$z<1.2%$), bimodal spectral index (%${\alpha }_\mathrm{400~MHz}^\mathrm{1.5~GHz}%$) distribution and the radio luminosities (%$L_\mathrm{1.5~GHz}>5.0 \times 10^{23}%$ W Hz%$^{-1}%$), suggest them to be mainly consist of compact-steep-spectrum (CSS) or peaked-spectrum (PS) sources representing an early phase of the AGN-jet activity in dust-obscured environments. With stacking, we find the existence of faint radio emission (%$S_\mathrm{400~MHz} = 72.9~\mu %$Jy beam%$^{-1}%$ and %$S_\mathrm{1.5~GHz}= 29~\mu %$Jy beam%$^{-1}%$ with signal-to-noise ratio %$\sim %$20) in otherwise radio-undetected DOGs. Our study reveals the faint emission at a few tens of %$\mu %$Jy level in high-z DOGs, which can be used as a test-bed for the deeper radio continuum surveys planned with the square-kilometer array (SKA) and its pathfinders. © Indian Academy of Sciences 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstract_unstemmed |
Abstract Radio observations being insensitive to the dust-obscuration, have been exploited to unveil the population of active galactic nuclei residing in galaxies with large dust content. In this paper, we investigate the radio characteristics of 321 dust-obscured galaxies (DOGs; %$S_{24~{\mu }\mathrm{m}}/S_{{ r}-\mathrm{band}}\,\ge \, 1000%$) by using mainly deep band-3 (250–550 MHz) observations from the upgraded giant metrewave radio telescope (uGMRT) and 1.5 GHz Jansky very large array (JVLA) observations. We find that for our sample of DOGs, deep (median noise-rms %$=%$ 30 %$\mu %$Jy beam%$^{-1}%$) 400 MHz band-3 uGMRT observations yield the highest detection rate (28%) among those obtained with the JVLA, and low frequency array (LOFAR) radio observations and XMM-N X-ray observations. The radio characteristics of our sample sources, i.e., linear extent (<40 kpc at %$z<1.2%$), bimodal spectral index (%${\alpha }_\mathrm{400~MHz}^\mathrm{1.5~GHz}%$) distribution and the radio luminosities (%$L_\mathrm{1.5~GHz}>5.0 \times 10^{23}%$ W Hz%$^{-1}%$), suggest them to be mainly consist of compact-steep-spectrum (CSS) or peaked-spectrum (PS) sources representing an early phase of the AGN-jet activity in dust-obscured environments. With stacking, we find the existence of faint radio emission (%$S_\mathrm{400~MHz} = 72.9~\mu %$Jy beam%$^{-1}%$ and %$S_\mathrm{1.5~GHz}= 29~\mu %$Jy beam%$^{-1}%$ with signal-to-noise ratio %$\sim %$20) in otherwise radio-undetected DOGs. Our study reveals the faint emission at a few tens of %$\mu %$Jy level in high-z DOGs, which can be used as a test-bed for the deeper radio continuum surveys planned with the square-kilometer array (SKA) and its pathfinders. © Indian Academy of Sciences 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| container_issue |
2 |
| title_short |
Detection of radio-AGN in dust-obscured galaxies using deep uGMRT radio continuum observations |
| url |
https://dx.doi.org/10.1007/s12036-022-09873-0 |
| remote_bool |
true |
| author2 |
Singh, Veeresh Chandra, C. H. Ishwara Wadadekar, Yogesh Dutta, Sushant |
| author2Str |
Singh, Veeresh Chandra, C. H. Ishwara Wadadekar, Yogesh Dutta, Sushant |
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| doi_str |
10.1007/s12036-022-09873-0 |
| up_date |
2024-07-03T19:48:39.319Z |
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| score |
7.4028025 |