Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals

The first JWST data revealed an unexpected population of red galaxies that appear to have redshifts of z ∼ 7–9 and high masses of M _* ≳ 10 ^10 M _☉ . Here we fit Sérsic profiles to the F200W NIRCam images of the 13 massive galaxy candidates of Labbé et al., to determine their structural parameters....
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Autor*in:	Josephine F. W. Baggen [verfasserIn] Pieter van Dokkum [verfasserIn] Ivo Labbé [verfasserIn] Gabriel Brammer [verfasserIn] Tim B. Miller [verfasserIn] Rachel Bezanson [verfasserIn] Joel Leja [verfasserIn] Bingjie Wang [verfasserIn] Katherine E. Whitaker [verfasserIn] Katherine A. Suess [verfasserIn] Erica J. Nelson [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Galaxy evolution High-redshift galaxies James Webb Space Telescope

Übergeordnetes Werk:	In: The Astrophysical Journal Letters - IOP Publishing, 2022, 955(2023), 1, p L12
Übergeordnetes Werk:	volume:955 ; year:2023 ; number:1, p L12

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3847/2041-8213/acf5ef

Katalog-ID:	DOAJ095427422

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spelling	10.3847/2041-8213/acf5ef doi (DE-627)DOAJ095427422 (DE-599)DOAJ9f87aee3f21b4da8b828a21e040770f7 DE-627 ger DE-627 rakwb eng QB460-466 Josephine F. W. Baggen verfasserin aut Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The first JWST data revealed an unexpected population of red galaxies that appear to have redshifts of z ∼ 7–9 and high masses of M _* ≳ 10 ^10 M _☉ . Here we fit Sérsic profiles to the F200W NIRCam images of the 13 massive galaxy candidates of Labbé et al., to determine their structural parameters. Satisfactory fits were obtained for nine galaxies. We find that their effective radii are extremely small, ranging from r _e ∼ 80 pc to r _e ∼ 300 pc, with a mean of 〈 r _e 〉 ≈ 150 pc. For their apparent stellar masses, the galaxies are smaller than any other galaxy population that has been observed at any other redshift. We use the fits to derive circularized three-dimensional stellar mass profiles of the galaxies, and compare these to the mass profiles of massive quiescent galaxies at z ∼ 2.3 and nearby elliptical galaxies. Despite the fact that the high-redshift galaxies have 10–20 times smaller half-light radii than their putative descendants, the central stellar densities are very similar. The most straightforward interpretation is that the dense compact inner regions of the most massive ellipticals today were already in place ∼600 Myr after the Big Bang. We caution that the redshifts and masses of the galaxies remain to be confirmed, and that the complex NIRCam point-spread function is not yet fully characterized. Galaxy evolution High-redshift galaxies James Webb Space Telescope Astrophysics Pieter van Dokkum verfasserin aut Ivo Labbé verfasserin aut Gabriel Brammer verfasserin aut Tim B. Miller verfasserin aut Rachel Bezanson verfasserin aut Joel Leja verfasserin aut Bingjie Wang verfasserin aut Katherine E. Whitaker verfasserin aut Katherine A. Suess verfasserin aut Erica J. Nelson verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 955(2023), 1, p L12 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:955 year:2023 number:1, p L12 https://doi.org/10.3847/2041-8213/acf5ef kostenfrei https://doaj.org/article/9f87aee3f21b4da8b828a21e040770f7 kostenfrei https://doi.org/10.3847/2041-8213/acf5ef 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 955 2023 1, p L12
allfields_unstemmed	10.3847/2041-8213/acf5ef doi (DE-627)DOAJ095427422 (DE-599)DOAJ9f87aee3f21b4da8b828a21e040770f7 DE-627 ger DE-627 rakwb eng QB460-466 Josephine F. W. Baggen verfasserin aut Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The first JWST data revealed an unexpected population of red galaxies that appear to have redshifts of z ∼ 7–9 and high masses of M _* ≳ 10 ^10 M _☉ . Here we fit Sérsic profiles to the F200W NIRCam images of the 13 massive galaxy candidates of Labbé et al., to determine their structural parameters. Satisfactory fits were obtained for nine galaxies. We find that their effective radii are extremely small, ranging from r _e ∼ 80 pc to r _e ∼ 300 pc, with a mean of 〈 r _e 〉 ≈ 150 pc. For their apparent stellar masses, the galaxies are smaller than any other galaxy population that has been observed at any other redshift. We use the fits to derive circularized three-dimensional stellar mass profiles of the galaxies, and compare these to the mass profiles of massive quiescent galaxies at z ∼ 2.3 and nearby elliptical galaxies. Despite the fact that the high-redshift galaxies have 10–20 times smaller half-light radii than their putative descendants, the central stellar densities are very similar. The most straightforward interpretation is that the dense compact inner regions of the most massive ellipticals today were already in place ∼600 Myr after the Big Bang. We caution that the redshifts and masses of the galaxies remain to be confirmed, and that the complex NIRCam point-spread function is not yet fully characterized. Galaxy evolution High-redshift galaxies James Webb Space Telescope Astrophysics Pieter van Dokkum verfasserin aut Ivo Labbé verfasserin aut Gabriel Brammer verfasserin aut Tim B. Miller verfasserin aut Rachel Bezanson verfasserin aut Joel Leja verfasserin aut Bingjie Wang verfasserin aut Katherine E. Whitaker verfasserin aut Katherine A. Suess verfasserin aut Erica J. Nelson verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 955(2023), 1, p L12 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:955 year:2023 number:1, p L12 https://doi.org/10.3847/2041-8213/acf5ef kostenfrei https://doaj.org/article/9f87aee3f21b4da8b828a21e040770f7 kostenfrei https://doi.org/10.3847/2041-8213/acf5ef 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 955 2023 1, p L12
allfieldsGer	10.3847/2041-8213/acf5ef doi (DE-627)DOAJ095427422 (DE-599)DOAJ9f87aee3f21b4da8b828a21e040770f7 DE-627 ger DE-627 rakwb eng QB460-466 Josephine F. W. Baggen verfasserin aut Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The first JWST data revealed an unexpected population of red galaxies that appear to have redshifts of z ∼ 7–9 and high masses of M _* ≳ 10 ^10 M _☉ . Here we fit Sérsic profiles to the F200W NIRCam images of the 13 massive galaxy candidates of Labbé et al., to determine their structural parameters. Satisfactory fits were obtained for nine galaxies. We find that their effective radii are extremely small, ranging from r _e ∼ 80 pc to r _e ∼ 300 pc, with a mean of 〈 r _e 〉 ≈ 150 pc. For their apparent stellar masses, the galaxies are smaller than any other galaxy population that has been observed at any other redshift. We use the fits to derive circularized three-dimensional stellar mass profiles of the galaxies, and compare these to the mass profiles of massive quiescent galaxies at z ∼ 2.3 and nearby elliptical galaxies. Despite the fact that the high-redshift galaxies have 10–20 times smaller half-light radii than their putative descendants, the central stellar densities are very similar. The most straightforward interpretation is that the dense compact inner regions of the most massive ellipticals today were already in place ∼600 Myr after the Big Bang. We caution that the redshifts and masses of the galaxies remain to be confirmed, and that the complex NIRCam point-spread function is not yet fully characterized. Galaxy evolution High-redshift galaxies James Webb Space Telescope Astrophysics Pieter van Dokkum verfasserin aut Ivo Labbé verfasserin aut Gabriel Brammer verfasserin aut Tim B. Miller verfasserin aut Rachel Bezanson verfasserin aut Joel Leja verfasserin aut Bingjie Wang verfasserin aut Katherine E. Whitaker verfasserin aut Katherine A. Suess verfasserin aut Erica J. Nelson verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 955(2023), 1, p L12 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:955 year:2023 number:1, p L12 https://doi.org/10.3847/2041-8213/acf5ef kostenfrei https://doaj.org/article/9f87aee3f21b4da8b828a21e040770f7 kostenfrei https://doi.org/10.3847/2041-8213/acf5ef 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 955 2023 1, p L12
allfieldsSound	10.3847/2041-8213/acf5ef doi (DE-627)DOAJ095427422 (DE-599)DOAJ9f87aee3f21b4da8b828a21e040770f7 DE-627 ger DE-627 rakwb eng QB460-466 Josephine F. W. Baggen verfasserin aut Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The first JWST data revealed an unexpected population of red galaxies that appear to have redshifts of z ∼ 7–9 and high masses of M _* ≳ 10 ^10 M _☉ . Here we fit Sérsic profiles to the F200W NIRCam images of the 13 massive galaxy candidates of Labbé et al., to determine their structural parameters. Satisfactory fits were obtained for nine galaxies. We find that their effective radii are extremely small, ranging from r _e ∼ 80 pc to r _e ∼ 300 pc, with a mean of 〈 r _e 〉 ≈ 150 pc. For their apparent stellar masses, the galaxies are smaller than any other galaxy population that has been observed at any other redshift. We use the fits to derive circularized three-dimensional stellar mass profiles of the galaxies, and compare these to the mass profiles of massive quiescent galaxies at z ∼ 2.3 and nearby elliptical galaxies. Despite the fact that the high-redshift galaxies have 10–20 times smaller half-light radii than their putative descendants, the central stellar densities are very similar. The most straightforward interpretation is that the dense compact inner regions of the most massive ellipticals today were already in place ∼600 Myr after the Big Bang. We caution that the redshifts and masses of the galaxies remain to be confirmed, and that the complex NIRCam point-spread function is not yet fully characterized. Galaxy evolution High-redshift galaxies James Webb Space Telescope Astrophysics Pieter van Dokkum verfasserin aut Ivo Labbé verfasserin aut Gabriel Brammer verfasserin aut Tim B. Miller verfasserin aut Rachel Bezanson verfasserin aut Joel Leja verfasserin aut Bingjie Wang verfasserin aut Katherine E. Whitaker verfasserin aut Katherine A. Suess verfasserin aut Erica J. Nelson verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 955(2023), 1, p L12 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:955 year:2023 number:1, p L12 https://doi.org/10.3847/2041-8213/acf5ef kostenfrei https://doaj.org/article/9f87aee3f21b4da8b828a21e040770f7 kostenfrei https://doi.org/10.3847/2041-8213/acf5ef 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 955 2023 1, p L12
language	English
source	In The Astrophysical Journal Letters 955(2023), 1, p L12 volume:955 year:2023 number:1, p L12
sourceStr	In The Astrophysical Journal Letters 955(2023), 1, p L12 volume:955 year:2023 number:1, p L12
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author	Josephine F. W. Baggen
spellingShingle	Josephine F. W. Baggen misc QB460-466 misc Galaxy evolution misc High-redshift galaxies misc James Webb Space Telescope misc Astrophysics Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals
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topic_title	QB460-466 Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals Galaxy evolution High-redshift galaxies James Webb Space Telescope
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title	Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals
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title_full	Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals
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title_sort	sizes and mass profiles of candidate massive galaxies discovered by jwst at 7 < z < 9: evidence for very early formation of the central ∼100 pc of present-day ellipticals
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title_auth	Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals
abstract	The first JWST data revealed an unexpected population of red galaxies that appear to have redshifts of z ∼ 7–9 and high masses of M _* ≳ 10 ^10 M _☉ . Here we fit Sérsic profiles to the F200W NIRCam images of the 13 massive galaxy candidates of Labbé et al., to determine their structural parameters. Satisfactory fits were obtained for nine galaxies. We find that their effective radii are extremely small, ranging from r _e ∼ 80 pc to r _e ∼ 300 pc, with a mean of 〈 r _e 〉 ≈ 150 pc. For their apparent stellar masses, the galaxies are smaller than any other galaxy population that has been observed at any other redshift. We use the fits to derive circularized three-dimensional stellar mass profiles of the galaxies, and compare these to the mass profiles of massive quiescent galaxies at z ∼ 2.3 and nearby elliptical galaxies. Despite the fact that the high-redshift galaxies have 10–20 times smaller half-light radii than their putative descendants, the central stellar densities are very similar. The most straightforward interpretation is that the dense compact inner regions of the most massive ellipticals today were already in place ∼600 Myr after the Big Bang. We caution that the redshifts and masses of the galaxies remain to be confirmed, and that the complex NIRCam point-spread function is not yet fully characterized.
abstractGer	The first JWST data revealed an unexpected population of red galaxies that appear to have redshifts of z ∼ 7–9 and high masses of M _* ≳ 10 ^10 M _☉ . Here we fit Sérsic profiles to the F200W NIRCam images of the 13 massive galaxy candidates of Labbé et al., to determine their structural parameters. Satisfactory fits were obtained for nine galaxies. We find that their effective radii are extremely small, ranging from r _e ∼ 80 pc to r _e ∼ 300 pc, with a mean of 〈 r _e 〉 ≈ 150 pc. For their apparent stellar masses, the galaxies are smaller than any other galaxy population that has been observed at any other redshift. We use the fits to derive circularized three-dimensional stellar mass profiles of the galaxies, and compare these to the mass profiles of massive quiescent galaxies at z ∼ 2.3 and nearby elliptical galaxies. Despite the fact that the high-redshift galaxies have 10–20 times smaller half-light radii than their putative descendants, the central stellar densities are very similar. The most straightforward interpretation is that the dense compact inner regions of the most massive ellipticals today were already in place ∼600 Myr after the Big Bang. We caution that the redshifts and masses of the galaxies remain to be confirmed, and that the complex NIRCam point-spread function is not yet fully characterized.
abstract_unstemmed	The first JWST data revealed an unexpected population of red galaxies that appear to have redshifts of z ∼ 7–9 and high masses of M _* ≳ 10 ^10 M _☉ . Here we fit Sérsic profiles to the F200W NIRCam images of the 13 massive galaxy candidates of Labbé et al., to determine their structural parameters. Satisfactory fits were obtained for nine galaxies. We find that their effective radii are extremely small, ranging from r _e ∼ 80 pc to r _e ∼ 300 pc, with a mean of 〈 r _e 〉 ≈ 150 pc. For their apparent stellar masses, the galaxies are smaller than any other galaxy population that has been observed at any other redshift. We use the fits to derive circularized three-dimensional stellar mass profiles of the galaxies, and compare these to the mass profiles of massive quiescent galaxies at z ∼ 2.3 and nearby elliptical galaxies. Despite the fact that the high-redshift galaxies have 10–20 times smaller half-light radii than their putative descendants, the central stellar densities are very similar. The most straightforward interpretation is that the dense compact inner regions of the most massive ellipticals today were already in place ∼600 Myr after the Big Bang. We caution that the redshifts and masses of the galaxies remain to be confirmed, and that the complex NIRCam point-spread function is not yet fully characterized.
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title_short	Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals
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Here we fit Sérsic profiles to the F200W NIRCam images of the 13 massive galaxy candidates of Labbé et al., to determine their structural parameters. Satisfactory fits were obtained for nine galaxies. We find that their effective radii are extremely small, ranging from r _e ∼ 80 pc to r _e ∼ 300 pc, with a mean of 〈 r _e 〉 ≈ 150 pc. For their apparent stellar masses, the galaxies are smaller than any other galaxy population that has been observed at any other redshift. We use the fits to derive circularized three-dimensional stellar mass profiles of the galaxies, and compare these to the mass profiles of massive quiescent galaxies at z ∼ 2.3 and nearby elliptical galaxies. Despite the fact that the high-redshift galaxies have 10–20 times smaller half-light radii than their putative descendants, the central stellar densities are very similar. The most straightforward interpretation is that the dense compact inner regions of the most massive ellipticals today were already in place ∼600 Myr after the Big Bang. 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Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals

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