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We study the luminosity function of satellite galaxies around isolated primaries using the Sloan Digital Sky Survey (SDSS) spectroscopic and photometric galaxy samples. We select isolated primaries from the spectroscopic sample and search…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Quan Guo , Shaun Cole , Vincent Eke , Carlos Frenk

We present a new observation of satellite galaxies around seven Milky Way (MW)-like galaxies located outside of the Local Group (LG) using Subaru/Hyper Suprime-Cam imaging data to statistically address the missing satellite problem. We…

Astrophysics of Galaxies · Physics 2022-09-07 Masashi Nashimoto , Masayuki Tanaka , Masashi Chiba , Kohei Hayashi , Yutaka Komiyama , Takashi Okamoto

We use a volume-limited spectroscopic sample of isolated galaxies in the Sloan Digital Sky Survey (SDSS) to investigate the frequency and radial distribution of luminous (M_r <~ -18.3) satellites like the Large Magellanic Cloud (LMC) around…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Erik J. Tollerud , Michael Boylan-Kolchin , Elizabeth J. Barton , James S. Bullock , Christopher Q. Trinh

We investigate the radial number density profile and the abundance distribution of faint satellites around central galaxies in the low redshift universe using the CFHT Legacy Survey. We consider three samples of central galaxies with…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Chunyan Jiang , Yipeng Jing , Cheng Li

We investigate the luminosity functions (LFs) and projected number density profiles of galactic satellites around isolated primaries of different luminosities. We measure these quantities for model satellites placed into the Millennium and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Quan Guo , Shaun Cole , Vincent Eke , Carlos Frenk , John Helly

Low-mass satellites around Milky Way (MW)-like galaxies are important probes of small scale structure and galaxy formation. However, confirmation of satellite candidates with distance measurements remains a key barrier to fast progress in…

Astrophysics of Galaxies · Physics 2021-02-24 Scott G. Carlsten , Jenny E. Greene , Annika H. G. Peter , Rachael L. Beaton , Johnny P. Greco

We quantify the detectability of stellar Milky Way satellites in the Sloan Digital Sky Survey (SDSS) Data Release 5. We show that the effective search volumes for the recently discovered SDSS--satellites depend strongly on their luminosity,…

Using photometric galaxies from the HSC survey, we measure the stellar mass density profiles for satellite galaxies as a function of the projected distance, $r_p$, to isolated central galaxies (ICGs) selected from SDSS/DR7 spectroscopic…

The high-resolution, SPH galaxies of the McMaster Unbiased Galaxy Survey (MUGS) are used to examine the satellite systems of sixteen model host galaxies. Each galaxy has a different mass, angular momentum and merger history that yield a…

Astrophysics of Galaxies · Physics 2015-06-12 S. Nickerson , G. Stinson , H. M. P. Couchman , J. Bailin , J. Wadsley

Several occupational distributions for satellite galaxies more massive than ms~4E7 Msun around MW-sized hosts are presented and used to predict their internal dynamics. For this, a galaxy group mock catalog is constructed on the basis of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 A. Rodriguez-Puebla , V. Avila-Reese , N. Drory

Observational work have shown that the two brightest satellite galaxies of the Milky Way (MW), the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC), are rare amongst MW analogues. It is then interesting to know whether the…

Astrophysics of Galaxies · Physics 2019-05-21 Dali Zhang , Yu Luo , Xi Kang

Using DESI SV3 spectroscopic group centrals together with deep HSC photometric data, we measure the conditional luminosity functions (CLFs) of central and satellite galaxies, separately for red and blue populations, in dark matter halos…

Astrophysics of Galaxies · Physics 2026-04-07 Ce Gao , Cheng Li , Houjun Mo , Jiacheng Meng , Qinglin Ma , Xiaohu Yang , Yizhou Gu , Qingyang Li

Recent discovery of many dwarf satellite galaxies in the direction of the Small and Large Magellanic Clouds (SMC and LMC) provokes questions of their origins, and what they can reveal about galaxy evolution theory. Here, we predict the…

Astrophysics of Galaxies · Physics 2017-09-20 Gregory A. Dooley , Annika H. G. Peter , Jeffrey L. Carlin , Anna Frebel , Keith Bechtol , Beth Willman

We calculate the probability that a Milky-Way-like halo in the standard cosmological model has the observed number of Magellanic Clouds (MCs). The statistics of the number of MCs in the LCDM model are in good agreement with observations of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Michael T. Busha , Risa H. Wechsler , Peter S. Behroozi , Brian F. Gerke , Anatoly A. Klypin , Joel R. Primack

We combine the six high-resolution Aquarius dark matter simulations with a semi-analytic galaxy formation model to investigate the properties of the satellites of Milky Way-like galaxies. We find good correspondence with the observed…

We study the luminosity function and the radial distribution of satellite galaxies within Milky Way sized haloes as predicted in Cold Dark Matter based models of galaxy formation, making use of numerical N-body techniques as well as three…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Andrea V. Maccio' , Xi Kang , Fabio Fontanot , Rachel S. Somerville , Sergey E. Koposov , Pierluigi Monaco

We study the abundance of satellite galaxies as a function of primary stellar mass using the SDSS/DR7 spectroscopic catalogue. In contrast with previous studies, which focussed mainly on bright primaries, our central galaxies span a wide…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Laura V. Sales , Wenting Wang , Simon D. M. White , Julio F. Navarro

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

We investigate whether the satellite luminosity function (LF) of primary galaxies identified in the Sloan Digital Sky Survey (SDSS) depends on whether the host galaxy is in a filament or not. Isolated primary galaxies are identified in the…

Astrophysics of Galaxies · Physics 2015-01-29 Quan Guo , Elmo Tempel , Noam I. Libeskind
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