ALMA 1.1 mm Observations of a Conservative Sample of High-redshift Massive Quiescent Galaxies in SHELA

被引：5

作者：

Chworowsky, Katherine ^{[1
]}

Finkelstein, Steven L. ^{[1
]}

Spilker, Justin S. ^{[2
,3
]}

Leung, Gene C. K. ^{[1
]}

Bagley, Micaela B. ^{[1
]}

Casey, Caitlin M. ^{[1
]}

Gronwall, Caryl ^{[4
,5
]}

Jogee, Shardha ^{[1
]}

Larson, Rebecca L. ^{[1
]}

Papovich, Casey ^{[2
,3
]}

Somerville, Rachel S. ^{[6
]}

Stevans, Matthew ^{[1
]}

Wold, Isak G. B. ^{[7
,8
,9
]}

Yung, L. Y. Aaron ^{[10
]}

机构：

[1] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA

[2] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA

[3] Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamental, College Stn, TX 77843 USA

[4] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

[5] Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA

[6] Flatiron Inst, Ctr Computat Astrophys, 162 5th Ave, New York, NY 10010 USA

[7] Goddard Space Flight Ctr, Astrophys Sci Div, Greenbelt, MD 20771 USA

[8] Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA

[9] NASA GSDC, Ctr Res & Explorat Space Sci & Technol, Greenbelt 20771, MD USA

[10] NASA Goddard Space Flight Ctr, Astrophys Sci Div, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA

来源：

ASTROPHYSICAL JOURNAL | 2023年 / 951卷 / 01期

基金：

美国国家科学基金会;

关键词：

STAR-FORMING GALAXIES; EQUAL-TO; 2.5; STELLAR MASS; PASSIVE GALAXIES; LUMINOSITY FUNCTIONS; EARLY UNIVERSE; MAIN-SEQUENCE; EVOLUTION; I; POPULATION;

D O I：

10.3847/1538-4357/acd1e3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a sample of 30 massive (log(M (*)/M (& ODOT;)) > 11) z = 3-5 quiescent galaxies selected from the Spitzer-HETDEX Exploratory Large Area (SHELA) Survey and observed at 1.1 mm with Atacama Large Millimeter/submillimeter Array (ALMA) Band 6 observations. These ALMA observations would detect even modest levels of dust-obscured star formation, on the order of & SIM;20 M (& ODOT;) yr(-1) at z & SIM; 4 at the 1 & sigma; level, allowing us to quantify the amount of contamination from dusty star-forming sources in our quiescent sample. Starting with a parent sample of candidate massive quiescent galaxies from the Stevans et al. v1 SHELA catalog, we use the Bayesian Bagpipes spectral energy distribution fitting code to derive robust stellar masses (M (*)) and star formation rates (SFRs) for these sources, and select a conservative sample of 36 candidate massive (M (*) > 10(11 ) M (& ODOT;)) quiescent galaxies, with specific SFRs >2 & sigma; below the Salmon et al. star-forming main sequence at z & SIM; 4. Based on the ALMA imaging, six of these candidate quiescent galaxies show the presence of significant dust-obscured star formation, and thus were removed from our final sample. This implies a & SIM;17% contamination rate from dusty star-forming galaxies with our selection criteria using the v1 SHELA catalog. This conservatively selected quiescent galaxy sample at z = 3-5 will provide excellent targets for future observations to constrain better how massive galaxies can both grow and shut down their star formation in a relatively short period.

引用

页数：13

共 41 条

[41] First simultaneous optical/near-infrared imaging of an X-ray selected, high-redshift cluster of galaxies with GROND The galaxy population of XMMU J0338.7+0030 at z=1.1
Pierini, D.
Suhada, R.
Fassbender, R.
Nastasi, A.
Boehringer, H.
Salvato, M.
Pratt, G. W.
Lerchster, M.
Rosati, P.
Santos, J. S.
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Lamer, G.
Mohr, J. J.
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Quintana, H.
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Chon, G.
Giodini, S.
Koppenhoefer, J.
Verdugo, M.
Ziparo, F.
Afonso, P. M. J.
Clemens, C.
Greiner, J.
Kruehler, T.
Yoldas, A. Kuepcue
Olivares E, F.
Rossi, A.
Yoldas, A.
ASTRONOMY & ASTROPHYSICS, 2012, 540

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