期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 497, 期 1, 页码 581-595出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/staa1956
关键词
galaxies: evolution; galaxies: formation; galaxies: haloes; dark matter; large-scale structure of Universe
资金
- European Research Council through the COSFORM Research Grant [670193]
- Alfred P. Sloan Foundation
- U.S. Department of Energy Office of Science
- Center for High-Performance Computing at the University of Utah
- Spanish MultiDark Consolider Project [CSD2009-00064]
- Gauss Centre for Supercomputing e.V.
- Partnership for Advanced Supercomputing in Europe (PRACE)
- STFC [ST/R000972/1] Funding Source: UKRI
We develop a new Multitracer Halo Occupation Distribution (MTHOD) framework for the galaxy distribution and apply it to the extended Baryon Oscillation Spectroscopic Survey (eBOSS) final data between z = 0.7 - 1.1. We obtain a best fitting MTHOD for each tracer and describe the host halo properties of these galaxies. The mean halo masses for LRGs, ELGs, and QSOs are found to be 1.9 x 10(13) h(-1)M(circle dot), 1.1 x 10(12) h(-1)M(circle dot), and 5 x 10(12) h(-1)M(circle dot) respectively in the eBOSS data. We use the MTHOD framework to create mock galaxy catalogues and predict auto- and cross-correlation functions for all the tracers. Comparing these results with data, we investigate galactic conformity, the phenomenon whereby the properties of neighbouring galaxies are mutually correlated in a manner that is not captured by the basic halo model. We detect 1-halo conformity at more than 3 sigma statistical significance, while obtaining upper limits on 2-halo conformity. We also look at the environmental dependence of the galaxy quenching efficiency and find that halo mass driven quenching successfully explains the behaviour in high density regions, but it fails to describe the quenching efficiency in low density regions. In particular, we show that the quenching efficiency in low density filaments is higher in the observed data, as compared to the prediction of the MTHOD with halo mass driven quenching. The mock galaxy catalogue constructed in this paper is publicly available on this website(1).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据