The Diverse Molecular Gas Content of Massive Galaxies Undergoing Quenching at z ∼ 1
The Diverse Molecular Gas Content of Massive Galaxies Undergoing Quenching at z ∼ 1
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z 〜 1 处淬火的大质量星系的不同分子气体含量
DOI:
10.3847/2041-8213/abe6a6
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
H. Übler
中科院分区:
文献类型:
--
作者:
S. Belli;A. Contursi;R. Genzel;L. Tacconi;N. Förster;D. Lutz;F. Combes;R. Neri;S. García;K. Schuster;R. Herrera;K. Tadaki;R. Davies;R. Davies;Benjamin D. Johnson;Minju M. Lee;J. Leja;E. Nelson;S. Price;J. Shangguan;T. Shimizu;S. Tacchella;H. Übler
We present a detailed study of the molecular gas content and stellar population properties of three massive galaxies at 1 < z < 1.3 that are in different stages of quenching. The galaxies were selected to have quiescent optical/near-infrared spectral energy distribution and relatively bright emission at 24 μm, and show remarkably diverse properties. CO emission from each of the three galaxies is detected in deep NOEMA observations, allowing us to derive molecular gas fractions M gas/M * of 13%–23%. We also reconstruct the star formation histories by fitting models to the observed photometry and optical spectroscopy, finding evidence for recent rejuvenation in one object, slow quenching in another, and rapid quenching in the third system. To better constrain the quenching mechanism we explore the depletion times for our sample and other similar samples at z ∼ 0.7 from the literature. We find that the depletion times are highly dependent on the method adopted to measure the star formation rate: using the UV+IR luminosity we obtain depletion times about 6 times shorter than those derived using dust-corrected [O ii] emission. When adopting the star formation rates from spectral fitting, which are arguably more robust, we find that recently quenched galaxies and star-forming galaxies have similar depletion times, while older quiescent systems have longer depletion times. These results offer new, important constraints for physical models of galaxy quenching.
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DOI:
10.3847/2041-8213/ab0c9c
发表时间:
2019-02
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
R. Bezanson;J. Spilker;C. Williams;K. Whitaker;D. Narayanan;B. Weiner;M. Franx
通讯作者:
R. Bezanson;J. Spilker;C. Williams;K. Whitaker;D. Narayanan;B. Weiner;M. Franx
DOI:
10.1088/0004-637x/768/1/74
发表时间:
2012-11
期刊:
The Astrophysical Journal
影响因子:
--
作者:
L. Tacconi;R. Neri;R. Genzel;F. Combes;A. Bolatto;M. Cooper;S. Wuyts;F. Bournaud;A. Burkert-
通讯作者:
L. Tacconi;R. Neri;R. Genzel;F. Combes;A. Bolatto;M. Cooper;S. Wuyts;F. Bournaud;A. Burkert-
DOI:
10.3847/1538-4357/aac438
发表时间:
2018-05
期刊:
The Astrophysical Journal
影响因子:
--
作者:
J. Spilker;R. Bezanson;I. Barišić;E. Bell;Claudia del P. Lagos;M. Maseda;A. Muzzin;C. Pacifici;D. Sobral;C. Straatman;A. V. D. Wel;P. V. Dokkum;B. Weiner;K. Whitaker;C. Williams;Po-Feng Wu
通讯作者:
J. Spilker;R. Bezanson;I. Barišić;E. Bell;Claudia del P. Lagos;M. Maseda;A. Muzzin;C. Pacifici;D. Sobral;C. Straatman;A. V. D. Wel;P. V. Dokkum;B. Weiner;K. Whitaker;C. Williams;Po-Feng Wu
影响因子:
4.8
作者:
Davis T
通讯作者:
Davis T
DOI:
10.3847/2041-8213/aaca9a
发表时间:
2018
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Hunt, Qiana;Bezanson, Rachel;Greene, Jenny E.;Spilker, Justin S.;Suess, Katherine A.;Kriek, Mariska;Narayanan, Desika;Feldmann, Robert;van der Wel, Arjen;Pattarakijwanich, Petchara
通讯作者:
Pattarakijwanich, Petchara