UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50

Deep observations with the James Webb Space Telescope (JWST) have revealed an emerging population of red pointlike sources that could provide a link between the postulated supermassive black hole seeds and observed quasars. In this work, we present a JWST/NIRSpec spectrum from the JWST Cycle 1 UNCOV...
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Autor*in:	Vasily Kokorev [verfasserIn] Seiji Fujimoto [verfasserIn] Ivo Labbe [verfasserIn] Jenny E. Greene [verfasserIn] Rachel Bezanson [verfasserIn] Pratika Dayal [verfasserIn] Erica J. Nelson [verfasserIn] Hakim Atek [verfasserIn] Gabriel Brammer [verfasserIn] Karina I. Caputi [verfasserIn] Iryna Chemerynska [verfasserIn] Sam E. Cutler [verfasserIn] Robert Feldmann [verfasserIn] Yoshinobu Fudamoto [verfasserIn] Lukas J. Furtak [verfasserIn] Andy D. Goulding [verfasserIn] Anna de Graaff [verfasserIn] Joel Leja [verfasserIn] Danilo Marchesini [verfasserIn] Tim B. Miller [verfasserIn] Themiya Nanayakkara [verfasserIn] Pascal A. Oesch [verfasserIn] Richard Pan [verfasserIn] Sedona H. Price [verfasserIn] David J. Setton [verfasserIn] Renske Smit [verfasserIn] Mauro Stefanon [verfasserIn] Bingjie Wang [verfasserIn] John R. Weaver [verfasserIn] Katherine E. Whitaker [verfasserIn] Christina C. Williams [verfasserIn] Adi Zitrin [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Active galactic nuclei High-redshift galaxies Early universe

Übergeordnetes Werk:	In: The Astrophysical Journal Letters - IOP Publishing, 2022, 957(2023), 1, p L7
Übergeordnetes Werk:	volume:957 ; year:2023 ; number:1, p L7

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3847/2041-8213/ad037a

Katalog-ID:	DOAJ099550687

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520			\|a Deep observations with the James Webb Space Telescope (JWST) have revealed an emerging population of red pointlike sources that could provide a link between the postulated supermassive black hole seeds and observed quasars. In this work, we present a JWST/NIRSpec spectrum from the JWST Cycle 1 UNCOVER Treasury survey of a massive accreting black hole at z = 8.50 displaying a clear broad-line component as inferred from the H β line with FWHM = 3439 ± 413 km s ^−1 , typical of the broad-line region of an active galactic nucleus (AGN). The AGN nature of this object is further supported by high ionization, as inferred from emission lines, and a point-source morphology. We compute a black hole mass of ${\mathrm{log}}_{10}({M}_{\mathrm{BH}}/{M}_{\odot })=8.17\pm 0.42$ and a bolometric luminosity of L _bol ∼ 6.6 × 10 ^45 erg s ^−1 . These values imply that our object is accreting at ∼40% of the Eddington limit. Detailed modeling of the spectral energy distribution in the optical and near-infrared, together with constraints from ALMA, indicate an upper limit on the stellar mass of ${\mathrm{log}}_{10}({M}_{* }/{M}_{\odot })\lt 8.7$ , which would lead to an unprecedented ratio of black hole to host mass of at least ∼30%. This is orders of magnitude higher compared to the local QSOs but consistent with recent AGN studies at high redshift with JWST. This finding suggests that a nonnegligible fraction of supermassive black holes either started out from massive seeds and/or grew at a super-Eddington rate at high redshift. Given the predicted number densities of high- z faint AGN, future NIRSpec observations of larger samples will allow us to further investigate galaxy–black hole coevolution in the early Universe.
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700	0		\|a Ivo Labbe \|e verfasserin \|4 aut
700	0		\|a Jenny E. Greene \|e verfasserin \|4 aut
700	0		\|a Rachel Bezanson \|e verfasserin \|4 aut
700	0		\|a Pratika Dayal \|e verfasserin \|4 aut
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700	0		\|a Hakim Atek \|e verfasserin \|4 aut
700	0		\|a Gabriel Brammer \|e verfasserin \|4 aut
700	0		\|a Karina I. Caputi \|e verfasserin \|4 aut
700	0		\|a Iryna Chemerynska \|e verfasserin \|4 aut
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700	0		\|a Robert Feldmann \|e verfasserin \|4 aut
700	0		\|a Yoshinobu Fudamoto \|e verfasserin \|4 aut
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700	0		\|a Danilo Marchesini \|e verfasserin \|4 aut
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700	0		\|a Themiya Nanayakkara \|e verfasserin \|4 aut
700	0		\|a Pascal A. Oesch \|e verfasserin \|4 aut
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700	0		\|a Sedona H. Price \|e verfasserin \|4 aut
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700	0		\|a John R. Weaver \|e verfasserin \|4 aut
700	0		\|a Katherine E. Whitaker \|e verfasserin \|4 aut
700	0		\|a Christina C. Williams \|e verfasserin \|4 aut
700	0		\|a Adi Zitrin \|e verfasserin \|4 aut
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allfields	10.3847/2041-8213/ad037a doi (DE-627)DOAJ099550687 (DE-599)DOAJb0f5dae0d3184e1785a2a088828e6009 DE-627 ger DE-627 rakwb eng QB460-466 Vasily Kokorev verfasserin aut UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Deep observations with the James Webb Space Telescope (JWST) have revealed an emerging population of red pointlike sources that could provide a link between the postulated supermassive black hole seeds and observed quasars. In this work, we present a JWST/NIRSpec spectrum from the JWST Cycle 1 UNCOVER Treasury survey of a massive accreting black hole at z = 8.50 displaying a clear broad-line component as inferred from the H β line with FWHM = 3439 ± 413 km s ^−1 , typical of the broad-line region of an active galactic nucleus (AGN). The AGN nature of this object is further supported by high ionization, as inferred from emission lines, and a point-source morphology. We compute a black hole mass of ${\mathrm{log}}_{10}({M}_{\mathrm{BH}}/{M}_{\odot })=8.17\pm 0.42$ and a bolometric luminosity of L _bol ∼ 6.6 × 10 ^45 erg s ^−1 . These values imply that our object is accreting at ∼40% of the Eddington limit. Detailed modeling of the spectral energy distribution in the optical and near-infrared, together with constraints from ALMA, indicate an upper limit on the stellar mass of ${\mathrm{log}}_{10}({M}_{* }/{M}_{\odot })\lt 8.7$ , which would lead to an unprecedented ratio of black hole to host mass of at least ∼30%. This is orders of magnitude higher compared to the local QSOs but consistent with recent AGN studies at high redshift with JWST. This finding suggests that a nonnegligible fraction of supermassive black holes either started out from massive seeds and/or grew at a super-Eddington rate at high redshift. Given the predicted number densities of high- z faint AGN, future NIRSpec observations of larger samples will allow us to further investigate galaxy–black hole coevolution in the early Universe. Active galactic nuclei High-redshift galaxies Early universe Astrophysics Seiji Fujimoto verfasserin aut Ivo Labbe verfasserin aut Jenny E. Greene verfasserin aut Rachel Bezanson verfasserin aut Pratika Dayal verfasserin aut Erica J. Nelson verfasserin aut Hakim Atek verfasserin aut Gabriel Brammer verfasserin aut Karina I. Caputi verfasserin aut Iryna Chemerynska verfasserin aut Sam E. Cutler verfasserin aut Robert Feldmann verfasserin aut Yoshinobu Fudamoto verfasserin aut Lukas J. Furtak verfasserin aut Andy D. Goulding verfasserin aut Anna de Graaff verfasserin aut Joel Leja verfasserin aut Danilo Marchesini verfasserin aut Tim B. Miller verfasserin aut Themiya Nanayakkara verfasserin aut Pascal A. Oesch verfasserin aut Richard Pan verfasserin aut Sedona H. Price verfasserin aut David J. Setton verfasserin aut Renske Smit verfasserin aut Mauro Stefanon verfasserin aut Bingjie Wang verfasserin aut John R. Weaver verfasserin aut Katherine E. Whitaker verfasserin aut Christina C. Williams verfasserin aut Adi Zitrin verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 957(2023), 1, p L7 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:957 year:2023 number:1, p L7 https://doi.org/10.3847/2041-8213/ad037a kostenfrei https://doaj.org/article/b0f5dae0d3184e1785a2a088828e6009 kostenfrei https://doi.org/10.3847/2041-8213/ad037a kostenfrei https://doaj.org/toc/2041-8205 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 957 2023 1, p L7
spelling	10.3847/2041-8213/ad037a doi (DE-627)DOAJ099550687 (DE-599)DOAJb0f5dae0d3184e1785a2a088828e6009 DE-627 ger DE-627 rakwb eng QB460-466 Vasily Kokorev verfasserin aut UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Deep observations with the James Webb Space Telescope (JWST) have revealed an emerging population of red pointlike sources that could provide a link between the postulated supermassive black hole seeds and observed quasars. In this work, we present a JWST/NIRSpec spectrum from the JWST Cycle 1 UNCOVER Treasury survey of a massive accreting black hole at z = 8.50 displaying a clear broad-line component as inferred from the H β line with FWHM = 3439 ± 413 km s ^−1 , typical of the broad-line region of an active galactic nucleus (AGN). The AGN nature of this object is further supported by high ionization, as inferred from emission lines, and a point-source morphology. We compute a black hole mass of ${\mathrm{log}}_{10}({M}_{\mathrm{BH}}/{M}_{\odot })=8.17\pm 0.42$ and a bolometric luminosity of L _bol ∼ 6.6 × 10 ^45 erg s ^−1 . These values imply that our object is accreting at ∼40% of the Eddington limit. Detailed modeling of the spectral energy distribution in the optical and near-infrared, together with constraints from ALMA, indicate an upper limit on the stellar mass of ${\mathrm{log}}_{10}({M}_{* }/{M}_{\odot })\lt 8.7$ , which would lead to an unprecedented ratio of black hole to host mass of at least ∼30%. This is orders of magnitude higher compared to the local QSOs but consistent with recent AGN studies at high redshift with JWST. This finding suggests that a nonnegligible fraction of supermassive black holes either started out from massive seeds and/or grew at a super-Eddington rate at high redshift. Given the predicted number densities of high- z faint AGN, future NIRSpec observations of larger samples will allow us to further investigate galaxy–black hole coevolution in the early Universe. Active galactic nuclei High-redshift galaxies Early universe Astrophysics Seiji Fujimoto verfasserin aut Ivo Labbe verfasserin aut Jenny E. Greene verfasserin aut Rachel Bezanson verfasserin aut Pratika Dayal verfasserin aut Erica J. Nelson verfasserin aut Hakim Atek verfasserin aut Gabriel Brammer verfasserin aut Karina I. Caputi verfasserin aut Iryna Chemerynska verfasserin aut Sam E. Cutler verfasserin aut Robert Feldmann verfasserin aut Yoshinobu Fudamoto verfasserin aut Lukas J. Furtak verfasserin aut Andy D. Goulding verfasserin aut Anna de Graaff verfasserin aut Joel Leja verfasserin aut Danilo Marchesini verfasserin aut Tim B. Miller verfasserin aut Themiya Nanayakkara verfasserin aut Pascal A. Oesch verfasserin aut Richard Pan verfasserin aut Sedona H. Price verfasserin aut David J. Setton verfasserin aut Renske Smit verfasserin aut Mauro Stefanon verfasserin aut Bingjie Wang verfasserin aut John R. Weaver verfasserin aut Katherine E. Whitaker verfasserin aut Christina C. Williams verfasserin aut Adi Zitrin verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 957(2023), 1, p L7 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:957 year:2023 number:1, p L7 https://doi.org/10.3847/2041-8213/ad037a kostenfrei https://doaj.org/article/b0f5dae0d3184e1785a2a088828e6009 kostenfrei https://doi.org/10.3847/2041-8213/ad037a kostenfrei https://doaj.org/toc/2041-8205 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 957 2023 1, p L7
allfields_unstemmed	10.3847/2041-8213/ad037a doi (DE-627)DOAJ099550687 (DE-599)DOAJb0f5dae0d3184e1785a2a088828e6009 DE-627 ger DE-627 rakwb eng QB460-466 Vasily Kokorev verfasserin aut UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Deep observations with the James Webb Space Telescope (JWST) have revealed an emerging population of red pointlike sources that could provide a link between the postulated supermassive black hole seeds and observed quasars. In this work, we present a JWST/NIRSpec spectrum from the JWST Cycle 1 UNCOVER Treasury survey of a massive accreting black hole at z = 8.50 displaying a clear broad-line component as inferred from the H β line with FWHM = 3439 ± 413 km s ^−1 , typical of the broad-line region of an active galactic nucleus (AGN). The AGN nature of this object is further supported by high ionization, as inferred from emission lines, and a point-source morphology. We compute a black hole mass of ${\mathrm{log}}_{10}({M}_{\mathrm{BH}}/{M}_{\odot })=8.17\pm 0.42$ and a bolometric luminosity of L _bol ∼ 6.6 × 10 ^45 erg s ^−1 . These values imply that our object is accreting at ∼40% of the Eddington limit. Detailed modeling of the spectral energy distribution in the optical and near-infrared, together with constraints from ALMA, indicate an upper limit on the stellar mass of ${\mathrm{log}}_{10}({M}_{* }/{M}_{\odot })\lt 8.7$ , which would lead to an unprecedented ratio of black hole to host mass of at least ∼30%. This is orders of magnitude higher compared to the local QSOs but consistent with recent AGN studies at high redshift with JWST. This finding suggests that a nonnegligible fraction of supermassive black holes either started out from massive seeds and/or grew at a super-Eddington rate at high redshift. Given the predicted number densities of high- z faint AGN, future NIRSpec observations of larger samples will allow us to further investigate galaxy–black hole coevolution in the early Universe. Active galactic nuclei High-redshift galaxies Early universe Astrophysics Seiji Fujimoto verfasserin aut Ivo Labbe verfasserin aut Jenny E. Greene verfasserin aut Rachel Bezanson verfasserin aut Pratika Dayal verfasserin aut Erica J. Nelson verfasserin aut Hakim Atek verfasserin aut Gabriel Brammer verfasserin aut Karina I. Caputi verfasserin aut Iryna Chemerynska verfasserin aut Sam E. Cutler verfasserin aut Robert Feldmann verfasserin aut Yoshinobu Fudamoto verfasserin aut Lukas J. Furtak verfasserin aut Andy D. Goulding verfasserin aut Anna de Graaff verfasserin aut Joel Leja verfasserin aut Danilo Marchesini verfasserin aut Tim B. Miller verfasserin aut Themiya Nanayakkara verfasserin aut Pascal A. Oesch verfasserin aut Richard Pan verfasserin aut Sedona H. Price verfasserin aut David J. Setton verfasserin aut Renske Smit verfasserin aut Mauro Stefanon verfasserin aut Bingjie Wang verfasserin aut John R. Weaver verfasserin aut Katherine E. Whitaker verfasserin aut Christina C. Williams verfasserin aut Adi Zitrin verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 957(2023), 1, p L7 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:957 year:2023 number:1, p L7 https://doi.org/10.3847/2041-8213/ad037a kostenfrei https://doaj.org/article/b0f5dae0d3184e1785a2a088828e6009 kostenfrei https://doi.org/10.3847/2041-8213/ad037a kostenfrei https://doaj.org/toc/2041-8205 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 957 2023 1, p L7
allfieldsGer	10.3847/2041-8213/ad037a doi (DE-627)DOAJ099550687 (DE-599)DOAJb0f5dae0d3184e1785a2a088828e6009 DE-627 ger DE-627 rakwb eng QB460-466 Vasily Kokorev verfasserin aut UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Deep observations with the James Webb Space Telescope (JWST) have revealed an emerging population of red pointlike sources that could provide a link between the postulated supermassive black hole seeds and observed quasars. In this work, we present a JWST/NIRSpec spectrum from the JWST Cycle 1 UNCOVER Treasury survey of a massive accreting black hole at z = 8.50 displaying a clear broad-line component as inferred from the H β line with FWHM = 3439 ± 413 km s ^−1 , typical of the broad-line region of an active galactic nucleus (AGN). The AGN nature of this object is further supported by high ionization, as inferred from emission lines, and a point-source morphology. We compute a black hole mass of ${\mathrm{log}}_{10}({M}_{\mathrm{BH}}/{M}_{\odot })=8.17\pm 0.42$ and a bolometric luminosity of L _bol ∼ 6.6 × 10 ^45 erg s ^−1 . These values imply that our object is accreting at ∼40% of the Eddington limit. Detailed modeling of the spectral energy distribution in the optical and near-infrared, together with constraints from ALMA, indicate an upper limit on the stellar mass of ${\mathrm{log}}_{10}({M}_{* }/{M}_{\odot })\lt 8.7$ , which would lead to an unprecedented ratio of black hole to host mass of at least ∼30%. This is orders of magnitude higher compared to the local QSOs but consistent with recent AGN studies at high redshift with JWST. This finding suggests that a nonnegligible fraction of supermassive black holes either started out from massive seeds and/or grew at a super-Eddington rate at high redshift. Given the predicted number densities of high- z faint AGN, future NIRSpec observations of larger samples will allow us to further investigate galaxy–black hole coevolution in the early Universe. Active galactic nuclei High-redshift galaxies Early universe Astrophysics Seiji Fujimoto verfasserin aut Ivo Labbe verfasserin aut Jenny E. Greene verfasserin aut Rachel Bezanson verfasserin aut Pratika Dayal verfasserin aut Erica J. Nelson verfasserin aut Hakim Atek verfasserin aut Gabriel Brammer verfasserin aut Karina I. Caputi verfasserin aut Iryna Chemerynska verfasserin aut Sam E. Cutler verfasserin aut Robert Feldmann verfasserin aut Yoshinobu Fudamoto verfasserin aut Lukas J. Furtak verfasserin aut Andy D. Goulding verfasserin aut Anna de Graaff verfasserin aut Joel Leja verfasserin aut Danilo Marchesini verfasserin aut Tim B. Miller verfasserin aut Themiya Nanayakkara verfasserin aut Pascal A. Oesch verfasserin aut Richard Pan verfasserin aut Sedona H. Price verfasserin aut David J. Setton verfasserin aut Renske Smit verfasserin aut Mauro Stefanon verfasserin aut Bingjie Wang verfasserin aut John R. Weaver verfasserin aut Katherine E. Whitaker verfasserin aut Christina C. Williams verfasserin aut Adi Zitrin verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 957(2023), 1, p L7 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:957 year:2023 number:1, p L7 https://doi.org/10.3847/2041-8213/ad037a kostenfrei https://doaj.org/article/b0f5dae0d3184e1785a2a088828e6009 kostenfrei https://doi.org/10.3847/2041-8213/ad037a kostenfrei https://doaj.org/toc/2041-8205 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 957 2023 1, p L7
allfieldsSound	10.3847/2041-8213/ad037a doi (DE-627)DOAJ099550687 (DE-599)DOAJb0f5dae0d3184e1785a2a088828e6009 DE-627 ger DE-627 rakwb eng QB460-466 Vasily Kokorev verfasserin aut UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Deep observations with the James Webb Space Telescope (JWST) have revealed an emerging population of red pointlike sources that could provide a link between the postulated supermassive black hole seeds and observed quasars. In this work, we present a JWST/NIRSpec spectrum from the JWST Cycle 1 UNCOVER Treasury survey of a massive accreting black hole at z = 8.50 displaying a clear broad-line component as inferred from the H β line with FWHM = 3439 ± 413 km s ^−1 , typical of the broad-line region of an active galactic nucleus (AGN). The AGN nature of this object is further supported by high ionization, as inferred from emission lines, and a point-source morphology. We compute a black hole mass of ${\mathrm{log}}_{10}({M}_{\mathrm{BH}}/{M}_{\odot })=8.17\pm 0.42$ and a bolometric luminosity of L _bol ∼ 6.6 × 10 ^45 erg s ^−1 . These values imply that our object is accreting at ∼40% of the Eddington limit. Detailed modeling of the spectral energy distribution in the optical and near-infrared, together with constraints from ALMA, indicate an upper limit on the stellar mass of ${\mathrm{log}}_{10}({M}_{* }/{M}_{\odot })\lt 8.7$ , which would lead to an unprecedented ratio of black hole to host mass of at least ∼30%. This is orders of magnitude higher compared to the local QSOs but consistent with recent AGN studies at high redshift with JWST. This finding suggests that a nonnegligible fraction of supermassive black holes either started out from massive seeds and/or grew at a super-Eddington rate at high redshift. Given the predicted number densities of high- z faint AGN, future NIRSpec observations of larger samples will allow us to further investigate galaxy–black hole coevolution in the early Universe. Active galactic nuclei High-redshift galaxies Early universe Astrophysics Seiji Fujimoto verfasserin aut Ivo Labbe verfasserin aut Jenny E. Greene verfasserin aut Rachel Bezanson verfasserin aut Pratika Dayal verfasserin aut Erica J. Nelson verfasserin aut Hakim Atek verfasserin aut Gabriel Brammer verfasserin aut Karina I. Caputi verfasserin aut Iryna Chemerynska verfasserin aut Sam E. Cutler verfasserin aut Robert Feldmann verfasserin aut Yoshinobu Fudamoto verfasserin aut Lukas J. Furtak verfasserin aut Andy D. Goulding verfasserin aut Anna de Graaff verfasserin aut Joel Leja verfasserin aut Danilo Marchesini verfasserin aut Tim B. Miller verfasserin aut Themiya Nanayakkara verfasserin aut Pascal A. Oesch verfasserin aut Richard Pan verfasserin aut Sedona H. Price verfasserin aut David J. Setton verfasserin aut Renske Smit verfasserin aut Mauro Stefanon verfasserin aut Bingjie Wang verfasserin aut John R. Weaver verfasserin aut Katherine E. Whitaker verfasserin aut Christina C. Williams verfasserin aut Adi Zitrin verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 957(2023), 1, p L7 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:957 year:2023 number:1, p L7 https://doi.org/10.3847/2041-8213/ad037a kostenfrei https://doaj.org/article/b0f5dae0d3184e1785a2a088828e6009 kostenfrei https://doi.org/10.3847/2041-8213/ad037a kostenfrei https://doaj.org/toc/2041-8205 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 957 2023 1, p L7
language	English
source	In The Astrophysical Journal Letters 957(2023), 1, p L7 volume:957 year:2023 number:1, p L7
sourceStr	In The Astrophysical Journal Letters 957(2023), 1, p L7 volume:957 year:2023 number:1, p L7
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Active galactic nuclei High-redshift galaxies Early universe Astrophysics
isfreeaccess_bool	true
container_title	The Astrophysical Journal Letters
authorswithroles_txt_mv	Vasily Kokorev @@aut@@ Seiji Fujimoto @@aut@@ Ivo Labbe @@aut@@ Jenny E. Greene @@aut@@ Rachel Bezanson @@aut@@ Pratika Dayal @@aut@@ Erica J. Nelson @@aut@@ Hakim Atek @@aut@@ Gabriel Brammer @@aut@@ Karina I. Caputi @@aut@@ Iryna Chemerynska @@aut@@ Sam E. Cutler @@aut@@ Robert Feldmann @@aut@@ Yoshinobu Fudamoto @@aut@@ Lukas J. Furtak @@aut@@ Andy D. Goulding @@aut@@ Anna de Graaff @@aut@@ Joel Leja @@aut@@ Danilo Marchesini @@aut@@ Tim B. Miller @@aut@@ Themiya Nanayakkara @@aut@@ Pascal A. Oesch @@aut@@ Richard Pan @@aut@@ Sedona H. Price @@aut@@ David J. Setton @@aut@@ Renske Smit @@aut@@ Mauro Stefanon @@aut@@ Bingjie Wang @@aut@@ John R. Weaver @@aut@@ Katherine E. Whitaker @@aut@@ Christina C. Williams @@aut@@ Adi Zitrin @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	312189028
id	DOAJ099550687
language_de	englisch
fullrecord	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000naa a22002652 4500</leader><controlfield tag="001">DOAJ099550687</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20240414041520.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">240414s2023 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.3847/2041-8213/ad037a</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)DOAJ099550687</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)DOAJb0f5dae0d3184e1785a2a088828e6009</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="050" ind1=" " ind2="0"><subfield code="a">QB460-466</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Vasily Kokorev</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2023</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="520" ind1=" " ind2=" "><subfield code="a">Deep observations with the James Webb Space Telescope (JWST) have revealed an emerging population of red pointlike sources that could provide a link between the postulated supermassive black hole seeds and observed quasars. 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Detailed modeling of the spectral energy distribution in the optical and near-infrared, together with constraints from ALMA, indicate an upper limit on the stellar mass of ${\mathrm{log}}_{10}({M}_{* }/{M}_{\odot })\lt 8.7$ , which would lead to an unprecedented ratio of black hole to host mass of at least ∼30%. This is orders of magnitude higher compared to the local QSOs but consistent with recent AGN studies at high redshift with JWST. This finding suggests that a nonnegligible fraction of supermassive black holes either started out from massive seeds and/or grew at a super-Eddington rate at high redshift. 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callnumber-first	Q - Science
author	Vasily Kokorev
spellingShingle	Vasily Kokorev misc QB460-466 misc Active galactic nuclei misc High-redshift galaxies misc Early universe misc Astrophysics UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50
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topic_title	QB460-466 UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50 Active galactic nuclei High-redshift galaxies Early universe
topic	misc QB460-466 misc Active galactic nuclei misc High-redshift galaxies misc Early universe misc Astrophysics
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title	UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50
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title_full	UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50
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author_browse	Vasily Kokorev Seiji Fujimoto Ivo Labbe Jenny E. Greene Rachel Bezanson Pratika Dayal Erica J. Nelson Hakim Atek Gabriel Brammer Karina I. Caputi Iryna Chemerynska Sam E. Cutler Robert Feldmann Yoshinobu Fudamoto Lukas J. Furtak Andy D. Goulding Anna de Graaff Joel Leja Danilo Marchesini Tim B. Miller Themiya Nanayakkara Pascal A. Oesch Richard Pan Sedona H. Price David J. Setton Renske Smit Mauro Stefanon Bingjie Wang John R. Weaver Katherine E. Whitaker Christina C. Williams Adi Zitrin
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title_sort	uncover: a nirspec identification of a broad-line agn at z = 8.50
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title_auth	UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50
abstract	Deep observations with the James Webb Space Telescope (JWST) have revealed an emerging population of red pointlike sources that could provide a link between the postulated supermassive black hole seeds and observed quasars. In this work, we present a JWST/NIRSpec spectrum from the JWST Cycle 1 UNCOVER Treasury survey of a massive accreting black hole at z = 8.50 displaying a clear broad-line component as inferred from the H β line with FWHM = 3439 ± 413 km s ^−1 , typical of the broad-line region of an active galactic nucleus (AGN). The AGN nature of this object is further supported by high ionization, as inferred from emission lines, and a point-source morphology. We compute a black hole mass of ${\mathrm{log}}_{10}({M}_{\mathrm{BH}}/{M}_{\odot })=8.17\pm 0.42$ and a bolometric luminosity of L _bol ∼ 6.6 × 10 ^45 erg s ^−1 . These values imply that our object is accreting at ∼40% of the Eddington limit. Detailed modeling of the spectral energy distribution in the optical and near-infrared, together with constraints from ALMA, indicate an upper limit on the stellar mass of ${\mathrm{log}}_{10}({M}_{* }/{M}_{\odot })\lt 8.7$ , which would lead to an unprecedented ratio of black hole to host mass of at least ∼30%. This is orders of magnitude higher compared to the local QSOs but consistent with recent AGN studies at high redshift with JWST. This finding suggests that a nonnegligible fraction of supermassive black holes either started out from massive seeds and/or grew at a super-Eddington rate at high redshift. Given the predicted number densities of high- z faint AGN, future NIRSpec observations of larger samples will allow us to further investigate galaxy–black hole coevolution in the early Universe.
abstractGer	Deep observations with the James Webb Space Telescope (JWST) have revealed an emerging population of red pointlike sources that could provide a link between the postulated supermassive black hole seeds and observed quasars. In this work, we present a JWST/NIRSpec spectrum from the JWST Cycle 1 UNCOVER Treasury survey of a massive accreting black hole at z = 8.50 displaying a clear broad-line component as inferred from the H β line with FWHM = 3439 ± 413 km s ^−1 , typical of the broad-line region of an active galactic nucleus (AGN). The AGN nature of this object is further supported by high ionization, as inferred from emission lines, and a point-source morphology. We compute a black hole mass of ${\mathrm{log}}_{10}({M}_{\mathrm{BH}}/{M}_{\odot })=8.17\pm 0.42$ and a bolometric luminosity of L _bol ∼ 6.6 × 10 ^45 erg s ^−1 . These values imply that our object is accreting at ∼40% of the Eddington limit. Detailed modeling of the spectral energy distribution in the optical and near-infrared, together with constraints from ALMA, indicate an upper limit on the stellar mass of ${\mathrm{log}}_{10}({M}_{* }/{M}_{\odot })\lt 8.7$ , which would lead to an unprecedented ratio of black hole to host mass of at least ∼30%. This is orders of magnitude higher compared to the local QSOs but consistent with recent AGN studies at high redshift with JWST. This finding suggests that a nonnegligible fraction of supermassive black holes either started out from massive seeds and/or grew at a super-Eddington rate at high redshift. Given the predicted number densities of high- z faint AGN, future NIRSpec observations of larger samples will allow us to further investigate galaxy–black hole coevolution in the early Universe.
abstract_unstemmed	Deep observations with the James Webb Space Telescope (JWST) have revealed an emerging population of red pointlike sources that could provide a link between the postulated supermassive black hole seeds and observed quasars. In this work, we present a JWST/NIRSpec spectrum from the JWST Cycle 1 UNCOVER Treasury survey of a massive accreting black hole at z = 8.50 displaying a clear broad-line component as inferred from the H β line with FWHM = 3439 ± 413 km s ^−1 , typical of the broad-line region of an active galactic nucleus (AGN). The AGN nature of this object is further supported by high ionization, as inferred from emission lines, and a point-source morphology. We compute a black hole mass of ${\mathrm{log}}_{10}({M}_{\mathrm{BH}}/{M}_{\odot })=8.17\pm 0.42$ and a bolometric luminosity of L _bol ∼ 6.6 × 10 ^45 erg s ^−1 . These values imply that our object is accreting at ∼40% of the Eddington limit. Detailed modeling of the spectral energy distribution in the optical and near-infrared, together with constraints from ALMA, indicate an upper limit on the stellar mass of ${\mathrm{log}}_{10}({M}_{* }/{M}_{\odot })\lt 8.7$ , which would lead to an unprecedented ratio of black hole to host mass of at least ∼30%. This is orders of magnitude higher compared to the local QSOs but consistent with recent AGN studies at high redshift with JWST. This finding suggests that a nonnegligible fraction of supermassive black holes either started out from massive seeds and/or grew at a super-Eddington rate at high redshift. Given the predicted number densities of high- z faint AGN, future NIRSpec observations of larger samples will allow us to further investigate galaxy–black hole coevolution in the early Universe.
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title_short	UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50
url	https://doi.org/10.3847/2041-8213/ad037a https://doaj.org/article/b0f5dae0d3184e1785a2a088828e6009 https://doaj.org/toc/2041-8205
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author2Str	Seiji Fujimoto Ivo Labbe Jenny E. Greene Rachel Bezanson Pratika Dayal Erica J. Nelson Hakim Atek Gabriel Brammer Karina I. Caputi Iryna Chemerynska Sam E. Cutler Robert Feldmann Yoshinobu Fudamoto Lukas J. Furtak Andy D. Goulding Anna de Graaff Joel Leja Danilo Marchesini Tim B. Miller Themiya Nanayakkara Pascal A. Oesch Richard Pan Sedona H. Price David J. Setton Renske Smit Mauro Stefanon Bingjie Wang John R. Weaver Katherine E. Whitaker Christina C. Williams Adi Zitrin
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In this work, we present a JWST/NIRSpec spectrum from the JWST Cycle 1 UNCOVER Treasury survey of a massive accreting black hole at z = 8.50 displaying a clear broad-line component as inferred from the H β line with FWHM = 3439 ± 413 km s ^−1 , typical of the broad-line region of an active galactic nucleus (AGN). The AGN nature of this object is further supported by high ionization, as inferred from emission lines, and a point-source morphology. We compute a black hole mass of ${\mathrm{log}}_{10}({M}_{\mathrm{BH}}/{M}_{\odot })=8.17\pm 0.42$ and a bolometric luminosity of L _bol ∼ 6.6 × 10 ^45 erg s ^−1 . These values imply that our object is accreting at ∼40% of the Eddington limit. Detailed modeling of the spectral energy distribution in the optical and near-infrared, together with constraints from ALMA, indicate an upper limit on the stellar mass of ${\mathrm{log}}_{10}({M}_{* }/{M}_{\odot })\lt 8.7$ , which would lead to an unprecedented ratio of black hole to host mass of at least ∼30%. This is orders of magnitude higher compared to the local QSOs but consistent with recent AGN studies at high redshift with JWST. This finding suggests that a nonnegligible fraction of supermassive black holes either started out from massive seeds and/or grew at a super-Eddington rate at high redshift. 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UNCOVER: A NIRSpec Identification of a Broad-line AGN at z = 8.50

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