NAOC Open IR
A study of the H i gas fractions of galaxies at z similar to 1
Zhang, Wei1; Kauffmann, Guinevere2; Wang, Jing3; Chen, Yanmei4,5; Fu, Jian6,7; Wu, Hong1
2021-04-07
Source PublicationASTRONOMY & ASTROPHYSICS
ISSN0004-6361
Volume648Pages:10
AbstractAims. Due to the fact that H i mass measurements are not available for large galaxy samples at high redshifts, we apply a photometric estimator of the H i-to-stellar mass ratio (MHI/M*), calibrated using a local Universe sample of galaxies, to a sample of galaxies at z similar to 1 in the DEEP2 survey. We use these H i mass estimates to calculate H i mass functions (HIMFs) and cosmic H i mass densities (Omega(HI)) as well as to examine the correlation between star formation rates and H i gas content for galaxies at z similar to 1. Methods. We have estimated H i gas masses for similar to 7000 galaxies in the DEEP2 survey with redshifts in the range 0:75 < z < 1:4 and stellar masses M* >= 10(10) M-circle dot using a combination of the rest-frame ultraviolet-optical colour (NUV-r) and stellar mass density (mu*) to estimate M-HI/M*. Results. It is found that the high-mass end of the high-z HIMF is quite similar to that of the local HIMF. The lower limit of Omega(HI;limit) = 2:1 x 10(-4) h(70)(-1), obtained by directly integrating the H i mass of galaxies with M* greater than or similar to 10(10) M-circle dot, confirms that massive star-forming galaxies do not dominate the neutral gas at z similar to 1. We study the evolution of the H i-to-stellar mass ratio from z similar to 1 to today and find a steeper relation between the H i gas mass fraction and stellar mass at higher redshifts. Specifically, galaxies with M* = 10(11) M-circle dot at z similar to 1 are found to have 3-4 times higher neutral gas fractions than local galaxies, while the increase is as high as 4 12 times at M* = 10(10) M-circle dot. The quantity M-HI=SFR exhibits very large scatter, and the scatter increases from factors of 5 7 at z = 0 to factors close to 100 at z = 1. This implies that there is no relation between H i gas and star formation in high-redshift galaxies. The H i gas must be linked to cosmological gas accretion processes at high redshifts.
KeywordGalaxy: evolution galaxies: distances and redshifts galaxies: ISM
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; NSFC ; NSFC ; National Key R&D Program of China ; National Key R&D Program of China ; Guangxi Natural Science Foundation ; Guangxi Natural Science Foundation ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; NSFC ; NSFC ; National Key R&D Program of China ; National Key R&D Program of China ; Guangxi Natural Science Foundation ; Guangxi Natural Science Foundation ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; NSFC ; NSFC ; National Key R&D Program of China ; National Key R&D Program of China ; Guangxi Natural Science Foundation ; Guangxi Natural Science Foundation ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; NSFC ; NSFC ; National Key R&D Program of China ; National Key R&D Program of China ; Guangxi Natural Science Foundation ; Guangxi Natural Science Foundation ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy
DOI10.1051/0004-6361/202039878
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[U1531118] ; Chinese Academy of Sciences (CAS)[U1531118] ; NSFC[12090041] ; NSFC[12090040] ; NSFC[10903011] ; NSFC[11173045] ; NSFC[11733006] ; National Key R&D Program of China[2017YFA0402704] ; Guangxi Natural Science Foundation[2019GXNSFFA245008] ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology[19ZR1466700] ; Joint Research Fund in Astronomy[U1531123]
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; NSFC ; NSFC ; National Key R&D Program of China ; National Key R&D Program of China ; Guangxi Natural Science Foundation ; Guangxi Natural Science Foundation ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; NSFC ; NSFC ; National Key R&D Program of China ; National Key R&D Program of China ; Guangxi Natural Science Foundation ; Guangxi Natural Science Foundation ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; NSFC ; NSFC ; National Key R&D Program of China ; National Key R&D Program of China ; Guangxi Natural Science Foundation ; Guangxi Natural Science Foundation ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; NSFC ; NSFC ; National Key R&D Program of China ; National Key R&D Program of China ; Guangxi Natural Science Foundation ; Guangxi Natural Science Foundation ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000638125400001
PublisherEDP SCIENCES S A
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/78242
Collection中国科学院国家天文台
Corresponding AuthorZhang, Wei
Affiliation1.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Opt Astron, Beijing 100101, Peoples R China
2.Max Planck Inst Astrophys, Karl Schwarzschild Str 1, D-85748 Garching, Germany
3.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
4.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Peoples R China
5.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Peoples R China
6.Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
7.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Wei,Kauffmann, Guinevere,Wang, Jing,et al. A study of the H i gas fractions of galaxies at z similar to 1[J]. ASTRONOMY & ASTROPHYSICS,2021,648:10.
APA Zhang, Wei,Kauffmann, Guinevere,Wang, Jing,Chen, Yanmei,Fu, Jian,&Wu, Hong.(2021).A study of the H i gas fractions of galaxies at z similar to 1.ASTRONOMY & ASTROPHYSICS,648,10.
MLA Zhang, Wei,et al."A study of the H i gas fractions of galaxies at z similar to 1".ASTRONOMY & ASTROPHYSICS 648(2021):10.
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