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We report evidence of galaxy assembly bias - the correlation between galaxy properties and biased secondary halo properties at fixed halo mass (M$_H$) - in the stellar-to-halo mass relation (SHMR) for red central galaxies from the Sloan…

Astrophysics of Galaxies · Physics 2024-10-04 Grecco A. Oyarzún , Jeremy L. Tinker , Kevin Bundy , Enia Xhakaj , J. Stuart B. Wyithe

The star formation and quenching of central galaxies are regulated by the assembly histories of their host halos. In this work, we use the central stellar mass to halo mass ratio as a proxy of halo formation time, and we devise three…

Astrophysics of Galaxies · Physics 2023-05-16 Kai Wang , Yangyao Chen , Qingyang Li , Xiaohu Yang

The properties of dark matter halos, including mass growth, correlate with larger scale environment at fixed mass, an effect known as assembly bias. However, whether this environmental dependence manifests itself in galaxy properties…

Cosmology and Nongalactic Astrophysics · Physics 2011-07-27 Jeremy Tinker , Andrew Wetzel , Charlie Conroy

The properties of the galaxies are tightly connected to their host halo mass and halo assembly history. Accurate measurement of the halo assembly history in observation is challenging but crucial to the understanding of galaxy formation and…

Using observations in the COSMOS field, we report an intriguing correlation between the star formation activity of massive (~10^{11.4}\msol) central galaxies, their stellar masses, and the large-scale (~10 Mpc) environments of their…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Jeremy L. Tinker , Matthew R. George , Alexie Leauthaud , Kevin Bundy , Alexis Finoguenov , Richard Massey , Jason Rhodes , Risa H. Wechsler

We test whether halo age and galaxy age are correlated at fixed halo and galaxy mass. The formation histories, and thus ages, of dark matter halos correlate with their large-scale density $\rho$, an effect known as assembly bias. We test…

Astrophysics of Galaxies · Physics 2017-10-11 Jeremy Tinker , Andrew Wetzel , Charlie Conroy , Yao-Yuan Mao

Properties of galaxies vary systematically with the mass of their parent dark matter halos. This basic galaxy - halo connection shows a fair amount of scatter whose origin is not fully understood. Here, we study how differences in the halo…

Astrophysics of Galaxies · Physics 2019-01-29 Robert Feldmann , Claude-André Faucher-Giguère , Dušan Kereš

Using a large galaxy group catalogue constructed from the SDSS, we investigate the correlation between various galaxy properties and halo mass. We split the population of galaxies in early types, late types, and intermediate types, based on…

Astrophysics · Physics 2009-06-16 Simone M. Weinmann , Frank C. van den Bosch , Xiaohu Yang , H. J. Mo

Galaxy mass assembly is an end product of structure formation in the $\Lambda$CDM cosmology. As an extension of Lee \& Yi (2013), we investigate the assembly history of stellar components in galaxies as a function of halo environments and…

Astrophysics of Galaxies · Physics 2017-02-22 Jaehyun Lee , Sukyoung K. Yi

How do galaxy properties (such as stellar mass, luminosity, star formation rate, and morphology) and their evolution depend on the mass of their host dark matter halo? Using the Galaxy and Mass Assembly (GAMA) group catalogue, we address…

We employed Mutual Information (MI) analysis to investigate the relationship between galaxy properties and the assembly history of their host dark matter (DM) haloes from the IllustrisTNG simulations. Focusing on central and satellite…

Astrophysics of Galaxies · Physics 2025-02-11 Y. D. Camargo , R. A. Casas-Miranda

We explore the interrelationships between the galaxy group halo mass and various observable group properties. We propose a simple scenario that describes the evolution of the central galaxies and their host dark matter halos. Star formation…

Astrophysics of Galaxies · Physics 2019-08-21 Zhong-yi Man , Ying-jie Peng , Jing-jing Shi , Xu Kong , Cheng-peng Zhang , Jing Dou , Ke-xin Guo

We study the dependence of the cross-correlation between galaxies and galaxy groups on group properties. Confirming previous results, we find that the correlation strength is stronger for more massive groups, in good agreement with the…

Astrophysics · Physics 2009-11-13 Xiaohu Yang , H. J. Mo , Frank C. van den Bosch

The fact that the clustering of dark matter halos depends not only on their mass, but also the formation epoch, is a prominent, albeit subtle, feature of the cold dark matter structure formation theory, and is known as assembly bias. At low…

Xu \& Jing reported a monotonic relationship between host halo mass $M_h$ and the morphology of massive central galaxies, characterized by the S\'ersic index $n$, at fixed stellar mass, suggesting that morphology could serve as a good…

Astrophysics of Galaxies · Physics 2025-06-30 Zhenjie Liu , Kun Xu , Jun Zhang , Wenting Wang , Cong Liu

We apply the empirical method built for z=0 in the previous work of Wang et al. to a higher redshift, to link galaxy stellar mass directly with its hosting dark matter halo mass at z~0.8. The relation of the galaxy stellar mass and the host…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Lan Wang , Y. P. Jing

We analyse a sample of massive disk galaxies selected from the SDSS-IV/MaNGA survey to investigate how the evolution of these galaxies depends on their stellar and halo masses. We applied a semi-analytic spectral fitting approach to the…

Astrophysics of Galaxies · Physics 2024-04-26 Shuang Zhou , Alfonso Aragón-Salamanca , Michael Merrifield

Stellar mass has been shown to correlate with halo mass, with non-negligible scatter. The stellar mass-size and luminosity-size relationships of galaxies also show significant scatter in galaxy size at fixed stellar mass. It is possible…

Astrophysics of Galaxies · Physics 2017-10-11 Paul J. L. Charlton , Michael J. Hudson , Michael L. Balogh , Sumeet Khatri

We reanalyze the galaxy-mass correlation function measured by the Sloan Digital Sky Survey to obtain host dark matter halo masses at galaxy and galaxy group scales. We extend the data to galaxy clusters in the 2MASS catalog and study the…

Astrophysics · Physics 2016-08-30 Asantha Cooray , Milos Milosavljevic

The relationship between galaxies and dark matter can be characterized by the halo mass of the central galaxy and the fraction of galaxies that are satellites. Here we present observational constraints from the SDSS on these quantities as a…

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