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相关论文: The Halo Occupation Distribution of HI Galaxies

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The halo occupation distribution (HOD) describes the relation between galaxies and dark matter at the level of individual dark matter halos. The properties of galaxies residing at the centers of halos differ from those of satellite galaxies…

The spatial clustering properties of HI galaxies can be studied using the formalism of the halo occupation distribution (HOD). The resulting parameter constraints describe properties like gas richness verses environment. Unfortunately,…

宇宙学与河外天体物理 · 物理学 2015-05-14 Stuart Wyithe , Michael J. I. Brown

The next generation of galaxy surveys will provide more precise measurements of galaxy clustering than have previously been possible. The 21-cm radio signals that are emitted from neutral atomic hydrogen (HI) gas will be detected by…

宇宙学与河外天体物理 · 物理学 2022-10-12 Fei Qin , Cullan Howlett , Adam R. H. Stevens , David Parkinson

We combine the most precise small scale ($< 100\, \rm h^{-1}kpc$) quasar clustering constraintsto date with recent measurements at large scales ($> 1\, \rm h^{-1}Mpc$) from the extended Baryon Oscillation Spectroscopic Survey (eBOSS) to…

宇宙学与河外天体物理 · 物理学 2020-02-04 S. Eftekharzadeh , A. D. Myers , E. Kourkchi

We investigate galaxy bias in the framework of the ``Halo Occupation Distribution'' (HOD), which defines the bias of a population of galaxies by the conditional probability P(N|M) that a dark matter halo of virial mass M contains N…

天体物理学 · 物理学 2009-11-07 Andreas A. Berlind , David H. Weinberg

We present a physically motivated semi-analytic model to understand the clustering of high redshift LBGs. We show that the model parameters constrained by the observed luminosity function, can be used to predict large scale (\theta > 80…

宇宙学与河外天体物理 · 物理学 2015-06-11 Charles Jose , Kandaswamy Subramanian , Raghunathan Srianand , Saumyadip Samui

We perform a Halo Occupation Distribution (HOD) modeling of the projected two-point correlation function (2PCF) of quasars that are observed in the Wide-field Infrared Survey Explorer (WISE) telescope with counter-parts in the Sloan Digital…

星系天体物理 · 物理学 2016-08-02 Kaustav Mitra

We perform Halo Occupation Distribution (HOD) modeling to interpret small-scale and intermediate-scale clustering of 35,000 luminous early-type galaxies and their cross-correlation with a reference imaging sample of normal L* galaxies in…

天体物理学 · 物理学 2014-11-18 Zheng Zheng , Idit Zehavi , Daniel J. Eisenstein , David H. Weinberg , Y. P. Jing

In this paper we study the stellar-mass dependence of galaxy clustering in the 6dF Galaxy Survey. The near-infrared selection of 6dFGS allows more reliable stellar mass estimates compared to optical bands used in other galaxy surveys. Using…

The halo occupation distribution (HOD) describes the bias between galaxies and dark matter by specifying (a) the probability P(N|M) that a halo of virial mass M contains N galaxies of a particular class and (b) the relative distributions of…

We construct halo occupation distribution (HOD) models of high redshift ($z \gtrsim 7.5$) galaxies with $M_{*}>10^8~M_{\odot}/h$ using the BlueTides hydrodynamic simulation suite, with a particular emphasis on modelling the small scale /…

星系天体物理 · 物理学 2018-08-15 Aklant Kumar Bhowmick , Duncan Campbell , Tiziana DiMatteo , Yu Feng

We present a new suite of mock galaxy catalogs mimicking the low-redshift Universe, based on an updated halo occupation distribution (HOD) model and a scaling relation between optical properties and the neutral hydrogen (HI) content of…

星系天体物理 · 物理学 2021-03-24 Aseem Paranjape , Tirthankar Roy Choudhury , Ravi K. Sheth

We analyze the halo occupation distribution (HOD), the probability for a halo of mass M to host a number of subhalos N, and two-point correlation function of galaxy-size dark matter halos using high-resolution dissipationless simulations of…

The distribution of cold gas in dark matter haloes is driven by key processes in galaxy formation: gas cooling, galaxy mergers, star formation and reheating of gas by supernovae. We compare the predictions of four different galaxy formation…

宇宙学与河外天体物理 · 物理学 2015-05-18 Han-Seek Kim , C. M. Baugh , A. J. Benson , S. Cole , C. S. Frenk , C. G. Lacey , C. Power , M. Schneider

We present a clustering analysis of ~60,000 massive (stellar mass Mstar > 10^{11} Msun) galaxies out to z = 1 drawn from 55.2 deg2 of the UKIRT Infrared Deep Sky Survey (UKIDSS) and the Sloan Digital Sky Survey (SDSS) II Supernova Survey.…

宇宙学与河外天体物理 · 物理学 2015-05-19 Y. Matsuoka , S. Masaki , K. Kawara , N. Sugiyama

We investigate the luminosity and colour dependence of clustering of CMASS galaxies in the Sloan Digital Sky Survey-III Baryon Oscillation Spectroscopic Survey Tenth Data Release. The halo occupation distribution framework is adopted to…

We present the measurements and modelling of the small-to-intermediate scale (0.1--25 Mpc/h) projected and three-dimensional (3D) redshift-space two-point correlation functions (2PCFs) of local galaxies in the Sloan Digital Sky Survey…

We present the first detailed analysis of the connection between galaxies and their dark matter halos for the unWISE galaxy catalog -- a full-sky, infrared-selected sample built from WISE data, containing over 500 million galaxies. Using…

宇宙学与河外天体物理 · 物理学 2023-01-24 Aleksandra Kusiak , Boris Bolliet , Alex Krolewski , J. Colin Hill
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