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Clustering of dark matter halos has been shown to depend on halo properties beyond mass such as halo concentration, a phenomenon referred to as halo assembly bias. Standard halo occupation models (HOD) in large scale structure studies…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-05 Mohammadjavad Vakili , ChangHoon Hahn

Observations have shown that the spatial distribution of satellite galaxies is not random, but aligned with the major axes of central galaxies. This alignment is dependent on galaxy properties, such that red satellites are more strongly…

Cosmology and Nongalactic Astrophysics · Physics 2014-04-11 Yang Ocean Wang , Weipeng Lin , Xi Kang , Aaron Dutton , Yu Yu , Andrea. V. Macciò

Empirical methods for connecting galaxies to their dark matter halos have become essential for interpreting measurements of the spatial statistics of galaxies. In this work, we present a novel approach for parameterizing the degree of…

Cosmology and Nongalactic Astrophysics · Physics 2016-12-30 Benjamin V. Lehmann , Yao-Yuan Mao , Matthew R. Becker , Samuel W. Skillman , Risa H. Wechsler

We measure the color and stellar mass dependence of clustering in spectroscopic galaxies at $0.6 < z < 0.65$ using data from the Baryon Oscillation Spectroscopic Survey component of the Sloan Digital Sky Survey. We greatly increase the…

Astrophysics of Galaxies · Physics 2017-06-09 Jamie Law-Smith , Daniel J. Eisenstein

Recent studies suggest that the quenching properties of galaxies are correlated over several mega-parsecs. The large-scale "galactic conformity" phenomenon around central galaxies has been regarded as a potential signature of "galaxy…

Astrophysics of Galaxies · Physics 2018-02-21 Ying Zu , Rachel Mandelbaum

(abridged) We use a theoretical model to predict the clustering properties of galaxy clusters. Our technique accounts for past light-cone effects on the observed clustering and follows the non-linear evolution of the dark matter correlation…

Astrophysics · Physics 2009-10-31 Lauro Moscardini , Sabino Matarrese , H. J. Mo

Small- and intermediate-scale galaxy clustering can be used to establish the galaxy-halo connection to study galaxy formation and evolution and to tighten constraints on cosmological parameters. With the increasing precision of galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2016-03-23 Zheng Zheng , Hong Guo

Different properties of dark matter haloes, including growth rate, concentration, interaction history, and spin, correlate with environment in unique, scale-dependent ways. While these halo properties are not directly observable, galaxies…

Astrophysics of Galaxies · Physics 2022-01-24 Peter Behroozi , Andrew Hearin , Benjamin P. Moster

Halo assembly bias is the secondary dependence of the clustering of dark-matter haloes on their assembly histories at fixed halo mass. This established dependence is expected to manifest itself on the clustering of the galaxy population, a…

Astrophysics of Galaxies · Physics 2021-09-22 Antonio D. Montero-Dorta , Jonás Chaves-Montero , M. Celeste Artale , Ginevra Favole

Applying halo models to analyze the small-scale clustering of galaxies is a proven method for characterizing the connection between galaxies and their host halos. Such works are often plagued by systematic errors or are limited to…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-16 Adam O. Szewciw , Gillian D. Beltz-Mohrmann , Andreas A. Berlind , Manodeep Sinha

Galaxy clustering and galaxy-galaxy lensing probe the connection between galaxies and their dark matter haloes in complementary ways. On one hand, the halo occupation statistics inferred from the observed clustering properties of galaxies…

Astrophysics · Physics 2009-11-19 Marcello Cacciato , Frank C. van den Bosch , Surhud More , Ran Li , H. J. Mo , Xiaohu Yang

We develop a novel method to explore the galaxy-halo connection using the galaxy imaging surveys by modeling the projected two-point correlation function measured from the galaxies with reasonable photometric redshift measurements. By…

Cosmology and Nongalactic Astrophysics · Physics 2019-07-17 Zhaoyu Wang , Haojie Xu , Xiaohu Yang , Y. P. Jing , Hong Guo , Zheng Zheng , Ying Zu , Zhigang Li , Chengze Liu

We study galaxy clustering using halo models, where gravitational clustering is described in terms of dark matter halos. At small scales, clustering statistics are dominated by halo density profiles, whereas at large scales, correlations…

Astrophysics · Physics 2009-10-31 Roman Scoccimarro , Ravi K. Sheth , Lam Hui , Bhuvnesh Jain

We use the IllustrisTNG100 hydrodynamical simulation to study the dependence of the galaxy two-point correlation function on a broad range of secondary subhalo and galactic properties. We construct galaxy mock catalogues adopting a standard…

Astrophysics of Galaxies · Physics 2021-11-04 Ginevra Favole , Antonio D. Montero-Dorta , M. Celeste Artale , Sergio Contreras , Idit Zehavi , Xiaoju Xu

We measure the luminosity and color dependence of galaxy clustering in the SDSS DR7 main galaxy sample, focusing on the projected correlation function w_p(r_p) of volume-limited samples. We interpret our measurements using halo occupation…

We introduce methods which allow observed galaxy clustering to be used together with observed luminosity or stellar mass functions to constrain the physics of galaxy formation. We show how the projected two-point correlation function of…

Astrophysics of Galaxies · Physics 2016-03-02 Marcel P. van Daalen , Bruno M. B. Henriques , Raul E. Angulo , Simon D. M. White

We introduce a new technique that uses galaxy clustering to constrain how satellite galaxies lose stellar mass and contribute to the diffuse "intrahalo light" (IHL). We implement two models that relate satellite galaxy stellar mass loss to…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Douglas F. Watson , Andreas A. Berlind , Andrew R. Zentner

The halo model provides a powerful framework for interpreting galaxy clustering by linking the spatial distribution of dark matter haloes to the underlying matter distribution. A key assumption within the halo bias approximation of the halo…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-02 Emy Mons , Vipul Prasad Maranchery , M. S. Suryan Sivadas , Charles Jose

We measure the angular 2-point correlation functions of galaxies in a volume limited, photometrically selected galaxy sample from the fifth data release of the Sloan Digital Sky Survey. We split the sample both by luminosity and galaxy type…

Cosmology and Nongalactic Astrophysics · Physics 2011-04-20 Ashley J Ross , Robert J. Brunner