An ALMA Spectroscopic Survey of the Brightest Submillimeter Galaxies in the SCUBA-2-COSMOS Field (AS2COSPEC): Physical Properties of z=2-5 Ultra- and Hyperluminous Infrared Galaxies

doi:10.3847/1538-4357/ad148c

	An ALMA Spectroscopic Survey of the Brightest Submillimeter Galaxies in the SCUBA-2-COSMOS Field (AS2COSPEC): Physical Properties of z=2-5 Ultra- and Hyperluminous Infrared Galaxies
	Liao, Cheng-Lin 8,9; Chen, Chian-Chou 8; Wang, Wei-Hao 8; Smail, Ian 7; Ao, Y.10; Chapman, S. C.11,12,13; Dudzevičiūtė, U.14; Castillo, M. Frias 15; Lee, Minju M.16,17; Serjeant, Stephen 2
刊名	ASTROPHYSICAL JOURNAL
	2024-02-01
卷号	961 期号:2
ISSN号	0004-637X
DOI	10.3847/1538-4357/ad148c
产权排序	第16完成单位
文献子类	Article
英文摘要	We report the physical properties of the 18 brightest (S-870 mu m = 12.4-19.2 mJy) and not strongly lensed 870 mu m-selected dusty star-forming galaxies (DSFGs), also known as submillimeter galaxies (SMGs), in the COSMOS field. This sample is part of an ALMA band 3 spectroscopic survey (AS2COSPEC), and spectroscopic redshifts are measured in 17 of them at z = 2-5. We perform spectral energy distribution analyses and deduce a median total infrared luminosity of L-IR = (1.3 +/- 0.1) x 10(13)L(circle dot), infrared-based star formation rate (SFR) of SFRIR = 1390 +/- 150 M-circle dot yr(-1), stellar mass of M-* = (1.4 +/- 0.6) x 10(11)M(circle dot), dust mass of M-dust = (3.7 +/- 0.5) x 10(9)M(circle dot), and molecular gas mass of M-gas = (alpha(CO)/0.8)(1.2 +/- 0.1) x 10(11)M(circle dot), suggesting that they are one of the most massive, ISM-enriched, and actively star-forming systems at z = 2-5. In addition, compared to less massive and less active galaxies at similar epochs, SMGs have comparable gas fractions; however, they have a much shorter depletion time, possibly caused by more active dynamical interactions. We determine a median dust emissivity index of beta = 2.1 +/- 0.1 for our sample, and by combining our results with those from other DSFG samples, we find no correlation of beta with redshift or infrared luminosity, indicating similar dust grain compositions across cosmic time for infrared luminous galaxies. We also find that AS2COSPEC SMGs have one of the highest dust-to-stellar mass ratios, with a median of 0.02 +/- 0.01, significantly higher than model predictions, possibly due to too-strong active galactic nucleus feedback implemented in the model. Finally, our complete and uniform survey enables us to put constraints on the most massive end of the dust and molecular gas mass functions.
学科主题	天文学
URL标识	查看原文
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
资助项目	National Science and Technology Council (NSTC)https://doi.org/10.13039/100020595[109-2112-M-001-016-MY3]; National Science and Technology Council (NSTC)https://doi.org/10.13039/100020595[111-2112M-001-045-MY3]; National Science and Technology Council of Taiwan (NSTC)[AS-CDA-112-M02]; Academia Sinica through the Career Development Award[12173079]; Academia Sinica through the Career Development Award[639.042.611]; National Natural Science Foundation of China[140]; Netherlands Organization for Scientific Research (NWO) - Danish National Research Foundation[12173089]; NSFC[ST/X001075/1]; STFC[20H01953]; STFC[22KK0231]; STFC[2019.1.01600]; JSPS KAKENHI grant
WOS关键词	STAR-FORMING GALAXIES ; ACTIVE GALACTIC NUCLEI ; DUST SCALING RELATIONS ; MOLECULAR GAS CONTENT ; SIMILAR-TO 3 ; HIGH-REDSHIFT ; LEGACY SURVEY ; MULTIWAVELENGTH PROPERTIES ; INTERSTELLAR-MEDIUM ; LUMINOSITY FUNCTION
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001154844000001
资助机构	National Science and Technology Council (NSTC)https://doi.org/10.13039/100020595[109-2112-M-001-016-MY3, 111-2112M-001-045-MY3] ; National Science and Technology Council of Taiwan (NSTC)[AS-CDA-112-M02] ; Academia Sinica through the Career Development Award[12173079, 639.042.611] ; National Natural Science Foundation of China[140] ; Netherlands Organization for Scientific Research (NWO) - Danish National Research Foundation[12173089] ; NSFC[ST/X001075/1] ; STFC[20H01953, 22KK0231, 2019.1.01600] ; JSPS KAKENHI grant
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26462]
专题	星系类星体研究组
作者单位	1.Key Laboratory of Radio Astronomy and Technology Chinese Academy of Sciences, A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China 2.School of Physical Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK; 3.Institute for Advanced Research, Nagoya University, Furocho, Chikusa, Nagoya 464-8602, Japan; 4.Department of Physics, Graduate School of Science, Nagoya University, Furocho, Chikusa, Nagoya 464-8602, Japan; 5.Cahill Center for Astronomy and Astrophysics, California Institute of Technology, MS 249-17, Pasadena, CA 91125, USA; 6.Yunnan Observatories, Chinese Academy of Sciences, Kunming 652016, People's Republic of China; 7.Centre for Extragalactic Astronomy, Department of Physics, Durham University, South Road, Durham DH1 3LE, UK; 8.Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan; clliao@asiaa.sinica.edu.tw, ccchen@asiaa.sinica.edu.tw; 9.Graduate Institute of Astrophysics, National Taiwan University, Taipei 10617, Taiwan; 10.Purple Mountain Observatory and Key Laboratory for Radio Astronomy, Chinese Academy of Sciences, Nanjing, People's Republic of China;
推荐引用方式 GB/T 7714	Liao, Cheng-Lin,Chen, Chian-Chou,Wang, Wei-Hao,et al. An ALMA Spectroscopic Survey of the Brightest Submillimeter Galaxies in the SCUBA-2-COSMOS Field (AS2COSPEC): Physical Properties of z=2-5 Ultra- and Hyperluminous Infrared Galaxies[J]. ASTROPHYSICAL JOURNAL,2024,961(2).
APA	Liao, Cheng-Lin.,Chen, Chian-Chou.,Wang, Wei-Hao.,Smail, Ian.,Ao, Y..,...&赵应和.(2024).An ALMA Spectroscopic Survey of the Brightest Submillimeter Galaxies in the SCUBA-2-COSMOS Field (AS2COSPEC): Physical Properties of z=2-5 Ultra- and Hyperluminous Infrared Galaxies.ASTROPHYSICAL JOURNAL,961(2).
MLA	Liao, Cheng-Lin,et al."An ALMA Spectroscopic Survey of the Brightest Submillimeter Galaxies in the SCUBA-2-COSMOS Field (AS2COSPEC): Physical Properties of z=2-5 Ultra- and Hyperluminous Infrared Galaxies".ASTROPHYSICAL JOURNAL 961.2(2024).