中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The Incomplete Conditional Stellar Mass Function: Unveiling the Stellar Mass Functions of Galaxies at 0.1 < Z < 0.8 from BOSS Observations

文献类型:期刊论文

作者Guo, Hong1; Yang, Xiaohu2,3,4; Lu, Yi1
刊名ASTROPHYSICAL JOURNAL
出版日期2018-05-01
卷号858期号:1
关键词Cosmology: Observations Cosmology: Theory Galaxies: Distances And Redshifts Galaxies: Halos Galaxies: Statistics Large-scale Structure Of Universe
ISSN号0004-637X
DOI10.3847/1538-4357/aabc56
英文摘要We propose a novel method to constrain the missing fraction of galaxies using galaxy clustering measurements in the galaxy conditional stellar mass function (CSMF) framework, which is applicable to surveys that suffer significantly from sample selection effects. The clustering measurements, which are not sensitive to the random sampling (missing fraction) of galaxies, are widely used to constrain the stellar-halo mass relation (SHMR). By incorporating a missing fraction (incompleteness) component into the CSMF model (ICSMF), we use the incomplete stellar mass function and galaxy clustering to simultaneously constrain the missing fractions and the SHMRs. Tests based on mock galaxy catalogs with a few typical missing fraction models show that this method can accurately recover the missing fraction and the galaxy SHMR, hence providing us with reliable measurements of the galaxy stellar mass functions. We then apply it to the Baryon Oscillation Spectroscopic Survey (BOSS) over the redshift range of 0.1 < z < 0.8 for galaxies of M-* > 10(11) M-circle dot. We find that the sample completeness for BOSS is over 80% at z < 0.6 but decreases at higher redshifts to about 30%. After taking these completeness factors into account, we provide accurate measurements of the stellar mass functions for galaxies with 10(11) M-circle dot < M-* < 10(12) M-circle dot, as well as the SHMRs, over the redshift range 0.1 < z < 0.8 in this largest galaxy redshift survey.
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000431458900001
出版者IOP PUBLISHING LTD
源URL[http://119.78.226.72/handle/331011/32297]  
专题中国科学院上海天文台
通讯作者Guo, Hong
作者单位1.Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China
2.Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Dept Astron, Shanghai 200240, Peoples R China
3.Shanghai Jiao Tong Univ, IFSA Collaborat Innovat Ctr, Shanghai 200240, Peoples R China
4.Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai 200240, Peoples R China
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Guo, Hong,Yang, Xiaohu,Lu, Yi. The Incomplete Conditional Stellar Mass Function: Unveiling the Stellar Mass Functions of Galaxies at 0.1 < Z < 0.8 from BOSS Observations[J]. ASTROPHYSICAL JOURNAL,2018,858(1).
APA Guo, Hong,Yang, Xiaohu,&Lu, Yi.(2018).The Incomplete Conditional Stellar Mass Function: Unveiling the Stellar Mass Functions of Galaxies at 0.1 < Z < 0.8 from BOSS Observations.ASTROPHYSICAL JOURNAL,858(1).
MLA Guo, Hong,et al."The Incomplete Conditional Stellar Mass Function: Unveiling the Stellar Mass Functions of Galaxies at 0.1 < Z < 0.8 from BOSS Observations".ASTROPHYSICAL JOURNAL 858.1(2018).

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来源:上海天文台

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