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Related papers: Satellites in the Local Group and Other Nearby Gro…

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This review aims to give an overview of the contribution of the Hubble Space Telescope to our understanding of the detailed properties of Local Group dwarf galaxies and their older stellar populations. The exquisite stable high spatial…

Astrophysics · Physics 2007-05-23 Eline Tolstoy

The last decade has seen enormous progress in understanding the structure of the Milky Way and neighboring galaxies via the production of large-scale digital surveys of the sky like 2MASS and SDSS, as well as specialized, counterpart…

Astrophysics of Galaxies · Physics 2015-05-18 Steven R. Majewski

The number and distribution of dwarf satellite galaxies remain a critical test of cold dark matter-dominated structure formation on small scales. Until recently, observational information about galaxy formation on these scales has been…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Ryan Speller , James E. Taylor

We use a self-consistent model of galaxy formation and the evolution of the intergalactic medium to study the effects of the reionization of the universe at high redshift on the properties of satellite galaxies like those seen around the…

Astrophysics · Physics 2009-07-09 A. J. Benson , C. S. Frenk , C. G. Lacey , C. M. Baugh , S. Cole

This review aims to give a summary of our understanding of galaxy evolution as infered from studies of nearby galaxies; how observations made with the Hubble Space Telescope have contributed significantly to our detailed understanding of…

Astrophysics · Physics 2007-05-23 Eline Tolstoy

If we are to develop a comprehensive and predictive theory of galaxy formation and evolution, it is essential that we obtain an accurate assessment of how and when galaxies assemble their stellar populations, and how this assembly varies…

Cosmology and Nongalactic Astrophysics · Physics 2012-09-20 Thomas M. Brown , Marc Postman , Daniela Calzetti

We are carrying out a comprehensive multi-wavelength study of dwarf galaxies in the Local Volume (< 5 Mpc). After our all-sky survey more than doubled the dwarf census we are now measuring structural parameters, integrated properties, and…

We study the evolution of galaxy satellites with high resolution N-body simulations. Satellites are modeled as replicas of typical low and high surface brightness galaxies (LSBs and HSBs). Encounters on high eccentricity orbits (as typical…

Astrophysics · Physics 2009-10-31 Lucio Mayer , Fabio Governato , Monica Colpi , Ben Moore , Thomas R. Quinn , Carlton M. Baugh

We use a simulation performed within the Constrained Local UniversE Simulation (CLUES) project to study a realistic Local Group-like object. We employ this group as a numerical laboratory for studying the evolution of the population of its…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Jaroslaw Klimentowski , Ewa L. Lokas , Alexander Knebe , Stefan Gottloeber , Luis A. Martinez-Vaquero , Gustavo Yepes , Yehuda Hoffman

Recent progress in our knowledge of stellar populations in local dwarf spheroidal galaxies is briefly discussed. A few results are summarized including wide field observations of stellar populations and their spatial variations, studies of…

Astrophysics · Physics 2009-11-11 Enrico V. Held

We compile a large sample of nearby galaxies that are satellites of hosts using a well known SDSS group catalogue. From this sample, we create an `ancient infallers' and `recent infallers' subsample, based on the mean infall time predicted…

Astrophysics of Galaxies · Physics 2019-05-29 Rory Smith , Camilla Pacifici , Anna Pasquali , Paula Calderon-Castillo

We use high-resolution ($\approx 10$ pc), zoom-in simulations of a typical (stellar mass $M_\star\simeq10^{10}M_\odot$) Lyman Break Galaxy (LBG) at $z\simeq 6$ to investigate the stellar populations of its six dwarf galaxy satellites, whose…

Astrophysics of Galaxies · Physics 2020-09-10 V. Gelli , S. Salvadori , A. Pallottini , A. Ferrara

Our knowledge of the dynamics and masses of galaxies in the Local Group has long been limited by the fact that only line-of-sight velocities were observationally accessible. This introduces significant degeneracies in dynamical models,…

Astrophysics of Galaxies · Physics 2015-06-23 Roeland P. van der Marel

Satellite galaxies that are near to massive primary galaxies in close pairs can have stellar population ages that are more similar to their primaries than expected. This is one way in which close pairs of galaxies show galactic conformity,…

Astrophysics of Galaxies · Physics 2025-11-11 Anne E. Sansom , Ignacio Ferreras , Benjamin F. McDonald

We analyse distribution, kinematics and star-formation (SF) properties of satellite galaxies in three different samples of nearby groups. We find that studied groups are generally well approximated by low-concentration NFW model, show a…

Astrophysics of Galaxies · Physics 2015-12-16 J. Vennik , U. Hopp

Within the Local Universe galaxies can be studied in great detail star by star, and here we review the results of quantitative studies in nearby dwarf galaxies. The Color-Magnitude Diagram synthesis method is well established as the most…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-15 E. Tolstoy , V. Hill , M. Tosi

Satellites constitute an important fraction of the overall galaxy population and are believed to form in dark matter subhalos. Here we use the cosmological hydrodynamic simulation TNG100 to investigate how the formation histories of…

The star formation histories of Local Group galaxies are summarized. The three large spirals are discussed individually, whereas the discussion of the Local Group dwarfs concentrates on differences and commonalities. While Local Group…

Astrophysics · Physics 2007-05-23 Eva K Grebel

It is an obvious statement that all the galaxies we see today in and around our Local Group have been forming and evolving for a significant fraction of the age of the Universe. It is not a great leap of logic to further state that the…

Astrophysics · Physics 2007-05-23 Eline Tolstoy

Positional, structural and dynamical parameters for all dwarf galaxies in and around the Local Group are presented, and various aspects of our observational understanding of this volume-limited sample are discussed. Over 100 nearby galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Alan W. McConnachie
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