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
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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 |
DOI | 10.3847/1538-4357/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 |
推荐引用方式 GB/T 7714 | 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). |
入库方式: OAI收割
来源:上海天文台
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