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Related papers: Constraints on the angular distribution of satelli…

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We find that satellites of isolated disk galaxies at projected radii between 300 and 500 kpc are distributed asymmetrically about the parent galaxy and aligned preferentially with the disk minor axis. The dynamical timescale at these radii…

Astrophysics · Physics 2009-07-28 Dennis Zaritsky , Rodney Smith , Carlos S. Frenk , Simon D. M. White

The normalized inclination distributions are presented for the spiral galaxies in RC3. The results show that, except for the bin of $81^{\circ}$-$90^{\circ}$, in which the apparent minor isophotal diameters that are used to obtain the…

Astrophysics · Physics 2015-06-24 Jun Ma , Guoxuan Song , Chenggang Shu

The spatial distribution of satellite galaxies around host galaxies can illuminate the relationship between satellites and dark matter subhalos and aid in developing and testing galaxy formation models. Previous efforts to constrain the…

Astrophysics · Physics 2009-06-23 Jacqueline Chen

The distribution of smaller satellite galaxies around large central galaxies has attracted attention because peculiar spatial and kinematic configurations have been detected in some systems. A particularly striking example of such behavior…

Astrophysics of Galaxies · Physics 2016-10-26 Noam I Libeskind , Quan Guo , Elmo Tempel , Rodrigo Ibata

We investigate the spatial distribution of the satellites of isolated host galaxies in the TNG100 simulation. In agreement with a previous, similar analysis of the Illustris-1 simulation, the satellites are typically poor tracers of the…

Astrophysics of Galaxies · Physics 2022-07-22 Bryanne McDonough , Tereasa Brainerd

Observationally, the fraction of blue satellite galaxies decreases steeply with host halo mass, and their radial distribution around central galaxies is significantly shallower in massive (M_* >10e11M_sun) than in Milky Way like systems.…

We study the kinematics of satellites around isolated galaxies selected from the Sloan Digital Sky Survey (SDSS) spectroscopic catalog. Using a model of the phase-space density previously measured for the halos of LCDM dark matter…

Cosmology and Nongalactic Astrophysics · Physics 2013-01-07 Radoslaw Wojtak , Gary A. Mamon

The study of satellite galaxies can provide information on the merging and aggregation processes which, according to the hierarchical clustering models, form the larger spiral galaxies we observe. With the aim of testing hierarchical models…

We study the spatial distribution of faint satellites of intermediate redshift (0.1<z<0.8), early-type galaxies, selected from the GOODS fields. We combine high resolution HST images and state-of-the-art host subtraction techniques to…

Astrophysics of Galaxies · Physics 2011-03-28 A. M. Nierenberg , M. W. Auger , T. Treu , P. J. Marshall , C. D. Fassnacht

The spatial distribution of satellite galaxies around pairs of galaxies in the Sloan Digital Sky Survey (SDSS) have been found to bulge significantly towards the respective partner. Highly anisotropic, planar distributions of satellite…

Astrophysics of Galaxies · Physics 2017-12-13 Marcel S. Pawlowski , Rodrigo A. Ibata , James S. Bullock

We use galaxy groups selected from the Sloan Digital Sky Survey to examine the alignment between the orientation of the central galaxy (defined as the brightest group member) and the distribution of satellite galaxies. By construction, we…

The angular distribution of galaxies encodes a wealth of information about large scale structure. Ultimately, the Sloan Digital Sky Survey (SDSS) will record the angular positions of order 10^8 galaxies in five bands, adding significantly…

Using well-defined selection criteria applied to the LEDA galaxy catalogue we have derived a sample of elliptical galaxies that can be classified as isolated. From this we have investigated the neighbourhood of these galaxies to determine…

Astrophysics · Physics 2007-05-23 Rodney M. Smith , Vicent J. Martinez

We study the alignments of satellite galaxies, and their anisotropic distribution, with respect to location and orientation of their host central galaxy in MassiveBlack-II and IllustrisTNG simulations. We find that: the shape of the…

Cosmology and Nongalactic Astrophysics · Physics 2021-02-03 Ananth Tenneti , Thomas D. Kitching , Benjamin Joachimi , Tiziana Di Matteo

Using the spectroscopic New York University Value-Added Galaxy Catalogue and the photometric photo-z catalogues of the Sloan Digital Sky Survey Data Release 7, we have explored the satellite distribution around ~1000 massive (M_star >…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 Pablo Ruiz , Ignacio Trujillo , Esther Mármol-Queraltó

Previous observations have suggested non-random distribution of spin directions of galaxies at scales far larger than the size of a supercluster. Here I use $\sim1.7\cdot10^5$ spiral galaxies from SDSS and $3.3\cdot10^4$ spiral galaxies…

Astrophysics of Galaxies · Physics 2020-11-17 Lior Shamir

We explore the color dependence of the radial profile of satellite galaxies around isolated parent galaxies. Samples of potential satellites selected from large galaxy redshift surveys are significantly contaminated by interlopers --…

Astrophysics · Physics 2008-11-26 Jacqueline Chen

We study the spatial distribution of satellite galaxies by assuming that they follow the dark matter distribution. This assumption is supported by semi-analytical studies based on high-resolution numerical simulations. We find that for a…

Astrophysics · Physics 2009-11-10 X. Kang , S. Mao , L. Gao , Y. P. Jing

We investigate the radial distribution of galaxies within their host dark matter halos by modeling their small-scale clustering, as measured in the Sloan Digital Sky Survey. Specifically, we model the Jiang et al. (2011) measurements of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Douglas F. Watson , Andreas A. Berlind , Cameron K. McBride , David W. Hogg , Tao Jiang

Using detailed mock galaxy redshift surveys (MGRSs) we investigate the abundance and radial distribution of satellite galaxies. The mock surveys are constructed using the conditional luminosity function (CLF), and are compared against data…

Astrophysics · Physics 2009-11-10 Frank C. van den Bosch , Xiaohu Yang , H. J. Mo , Peder Norberg