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Recent studies have shown that the distribution of satellite galaxies is preferentially aligned with the major axis of their central galaxy. The strength of this alignment has been found to depend strongly on the colours of the satellite…

Astrophysics · Physics 2008-11-26 X. Kang , Frank C. van den Bosch , Xiaohu Yang , Shude Mao , H. J. Mo , Cheng Li , Y. P. Jing

We measure how the properties of star-forming central galaxies correlate with large-scale environment, $\delta$, measured on $10$Mpc/h scales. We use group catalogs to isolate a robust sample of central galaxies with high purity and…

Astrophysics of Galaxies · Physics 2018-06-06 Jeremy L. Tinker , ChangHoon Hahn , Yao-Yuan Mao , Andrew R. Wetzel

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…

In this work, we combine size and stellar mass measurements from the Sloan Digital Sky Server (SDSS) with the group finder algorithm of Rodriguez \& Merch\'an in order to determine the stellar and halo mass -- size relations of central and…

Astrophysics of Galaxies · Physics 2021-07-07 Facundo Rodriguez , Antonio D. Montero-Dorta , Raul E. Angulo , M. Celeste Artale , Manuel Merchán

Exploiting a sample of 680 star-forming galaxies from the Padova-Millennium GalaxyGroup Catalog (PM2GC) (Calvi et al. 2011) in the range 0.038<z<0.104, we present a detailed analysis of the Star Formation Rate (SFR)-stellar mass (M_star)…

Astrophysics of Galaxies · Physics 2018-09-26 R. Calvi , B. Vulcani , B. M. Poggianti , A. Moretti , J. Fritz , G. Fasano

We infer the local stellar-to-halo/subhalo mass relations (MRs) for central and satellite galaxies separately. We constraint this relations by using several combinations of observational data, consisting of the total galaxy stellar mass…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 A. Rodriguez-Puebla , V. Avila-Reese , N. Drory

We explore the redshift evolution of a curious correlation between the star-formation properties of central galaxies and their satellites (`galactic conformity') at intermediate to high redshift ($0.4<z<1.9$). Using an extremely deep…

Astrophysics of Galaxies · Physics 2014-06-25 William G. Hartley , Christopher J. Conselice , Alice Mortlock , Sebastien Foucaud , Chris Simpson

We present a detailed analysis of the specific star formation rate -- stellar mass ($\mathrm{sSFR}-M_*$) of $z\le 0.13$ disk central galaxies using a morphologically selected mass-complete sample ($M_* \ge 10^{9.5} M_{\odot}$). Considering…

In previous work we showed that a semi-empirical model in which galaxies in host dark matter haloes are assigned stellar masses via a stellar mass-halo mass (SMHM) relation and sizes ($R_e$) via a linear and tight $R_e-R_h$ relation, can…

Astrophysics of Galaxies · Physics 2021-07-14 Lorenzo Zanisi , Francesco Shankar , Mariangela Bernardi , Simona Mei , Marc Huertas-Company

We use the kinematics of satellite galaxies that orbit around the central galaxy in a dark matter halo to infer the scaling relations between halo mass and central galaxy properties. Using galaxies from the Sloan Digital Sky Survey, we…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Surhud More , Frank C. van den Bosch , Marcello Cacciato , Ramin Skibba , H. J. Mo , 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

We compare state-of-the-art semi-analytic models of galaxy formation as well as advanced sub-halo abundance matching models with a large sample of early-type galaxies from SDSS at z < 0.3. We focus our attention on the dependence of median…

By linking galaxies in Sloan Digital Sky Survey (SDSS) to subhaloes in the ELUCID simulation, we investigate the relation between subhalo formation time and the galaxy properties, and the dependence of galaxy properties on the cosmic web…

Astrophysics of Galaxies · Physics 2021-09-14 Youcai Zhang , Xiaohu Yang , Hong Guo

As demonstrated in Paper I, the quenching properties of central and satellite galaxies are quite similar as long as both stellar mass and halo mass are controlled. Here we extend the analysis to the size and bulge-to-total light ratio (B/T)…

Astrophysics of Galaxies · Physics 2020-02-05 Enci Wang , Huiyuan Wang , Houjun Mo , Frank C. van den Bosch , Xiaohu Yang

We use the COSMOS2020 catalogue to measure the stellar-to-halo mass relation (SHMR) divided by central and satellite galaxies from $z=0.2$ to $z = 5.5$. Starting from accurate photometric redshifts we measure the near-infrared selected…

We investigate how the specific star formation rates of galaxies of different masses depend on cluster-centric radius and on the central/satellite dichotomy in both field and cluster environments. Recent data from a variety of sources,…

Astrophysics of Galaxies · Physics 2015-05-14 Simone M. Weinmann , Guinevere Kauffmann , Anja von der Linden , Gabriella De Lucia

Halo model interpretations of the luminosity dependence of galaxy clustering assume that there is a central galaxy in every sufficiently massive halo, and that this central galaxy is very different from all the others in the halo. The halo…

Astrophysics · Physics 2009-02-02 Ramin A. Skibba , Ravi K. Sheth , Matthew C. Martino

Using a sample of galaxies selected from the Sloan Digital Sky Survey Data Release 7 (SDSS DR7) and a catalog of bulge-disk decompositions, we study how the size distribution of galaxies depends on the intrinsic properties of galaxies, such…

Astrophysics of Galaxies · Physics 2019-02-25 Youcai Zhang , Xiaohu Yang

We present the luminosity-halo mass relations of satellite (sLHMRs) galaxies in the SDSS redMaPPer cluster catalogue and the effects of the dense cluster environment on subhalo mass evolution. We use data from the Subaru Hyper Suprime-Cam…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-07 Amit Kumar , Surhud More

We infer the normalization and the radial and angular distributions of the number density of satellites of massive galaxies ($\log_{10}[M_{h}^*/M\odot]>10.5$) between redshifts 0.1 and 0.8 as a function of host stellar mass, redshift,…

Astrophysics of Galaxies · Physics 2015-06-04 A. M. Nierenberg , M. W. Auger , T. Treu , P. J. Marshall , C. D. Fassnacht , Michael T. Busha