DESI Survey Validation Data in the COSMOS/Hyper Suprime-Cam Field: Cool Gas Trace Main-sequence Star-forming Galaxies at the Cosmic Noon

被引：4

作者：

Zou, Siwei ^{[1
,2
]}

Jiang, Linhua ^{[1
]}

Cai, Zheng ^{[2
]}

Moustakas, John ^{[3
]}

Sun, Zechang ^{[2
]}

Pan, Zhiwei ^{[1
]}

Ding, Jiani ^{[4
,5
]}

Forero-Romero, Jaime E. ^{[6
]}

Zou, Hu ^{[7
]}

Ting, Yuan-sen ^{[8
,9
]}

Pieri, Matthew ^{[10
]}

Ahlen, Steven ^{[11
]}

Alexander, David ^{[12
]}

Brooks, David ^{[13
]}

Dey, Arjun ^{[14
]}

Font-Ribera, Andreu ^{[15
]}

Gontcho, Satya Gontcho A. ^{[16
]}

Honscheid, Klaus ^{[17
,18
]}

Landriau, Martin ^{[16
]}

de la Macorra, Axel ^{[19
]}

Magana, Mariana Vargas ^{[19
]}

Meisner, Aaron ^{[14
]}

Miquel, Ramon ^{[15
,20
]}

Schubnell, Michael ^{[21
]}

Tarle, Gregory ^{[22
]}

Zhou, Zhimin ^{[7
]}

机构：

[1] Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China

[2] Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China

[3] Siena Coll, Loudonville, NY 12211 USA

[4] Univ Calif Santa Cruz, Dept Astron & Astrophys, 1156 High St, Santa Cruz, CA 95065 USA

[5] Univ Calif Observ, Irvine, CA 95065 USA

[6] Univ los Andes, Cra 1 18A-10,Edificio Ip, Bogota 111711, Colombia

[7] Chinese Acad Sci, Beijing 100012, Peoples R China

[8] Australian Natl Univ, Cotter Rd, Weston, 2611, Australia

[9] Australian Natl Univ, Acton, 2601, Australia

[10] Aix Marseille Univ, Marseille, France

[11] Boston Univ, Boston, MA 02215 USA

[12] Univ Durham, Durham DH1 3LE, England

[13] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

[14] NSFs NOIRLab, 950 N Cherry Ave, Tucson, AZ 85719 USA

[15] Barcelona Inst Sci & Technol, Inst Fis Altes Energies IFAE, Campus UAB, E-08193 Barcelona, Spain

[16] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA USA

[17] Ohio State Univ, Dept Phys, 191 West Woodruff Ave, Columbus, OH USA

[18] Ohio State Univ, Ctr Cosmol & AstroParticle Phys, 191 West Woodruff Ave, Columbus, OH 43210 USA

[19] Univ Nacl Autonoma Mexico, Cd De Mexico 04510, Mexico

[20] Inst Catalana Recerca & Estudis Avancats, Passeig de Lluis Co 23, Barcelona, Spain

[21] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[22] Univ Michigan, Michigan, ND 48109 USA

来源：

ASTROPHYSICAL JOURNAL | 2024年 / 960卷 / 01期

基金：

美国国家科学基金会; 国家重点研发计划;

关键词：

MG II ABSORPTION; LY-ALPHA EMISSION; ENRICHED HALO GAS; CIRCUMGALACTIC MEDIUM; HIGH-REDSHIFT; TARGET-SELECTION; ABSORBING GAS; MUSE ANALYSIS; GASEOUS ENVIRONMENT; VISUAL INSPECTION;

D O I：

10.3847/1538-4357/ad09b2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the first result in exploring the gaseous halo and galaxy correlation using the Dark Energy Spectroscopic Instrument survey validation data in the Cosmic Evolution Survey (COSMOS) and Hyper Suprime-Cam field. We obtain multiphase gaseous halo properties in the circumgalactic medium by using 115 quasar spectra (signal-to-noise ratio > 3). We detect Mg ii absorption at redshift 0.6 < z < 2.5, C iv absorption at 1.6 < z < 3.6, and H i absorption associated with the Mg ii and C iv. By crossmatching the COSMOS2020 catalog, we identify the Mg ii and C iv host galaxies in 10 quasar fields at 0.9< z < 3.1. We find that within the impact parameter of 250 kpc, a tight correlation is seen between the strong Mg ii equivalent width and the host galaxy star formation rate. The covering fraction f c of the strong Mg ii selected galaxies, which is the ratio of the absorbing galaxy in a certain galaxy population, shows significant evolution in the main-sequence galaxies and marginal evolution in all the galaxy populations within 250 kpc at 0.9 < z < 2.2. The f c increase in the main-sequence galaxies likely suggests the coevolution of strong Mg ii absorbing gas and the main-sequence galaxies at the cosmic noon. Furthermore, Mg ii and C iv absorbing gas is detected out of the galaxy virial radius, tentatively indicating the feedback produced by the star formation and/or the environmental effects.

引用

页数：20

共 4 条

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