The faintest dwarf galaxies

JD Simon - Annual Review of Astronomy and Astrophysics, 2019 - annualreviews.org
The lowest luminosity (L) Milky Way satellite galaxies represent the extreme lower limit of the
galaxy luminosity function. These ultra-faint dwarfs are the oldest, most dark matter …

One law to rule them all: the radial acceleration relation of galaxies

F Lelli, SS McGaugh, JM Schombert… - The Astrophysical …, 2017 - iopscience.iop.org
We study the link between baryons and dark matter (DM) in 240 galaxies with spatially
resolved kinematic data. Our sample spans 9 dex in stellar mass and includes all …

Gaia DR2 proper motions of dwarf galaxies within 420 kpc-orbits, Milky Way mass, tidal influences, planar alignments, and group infall

TK Fritz, G Battaglia, MS Pawlowski… - Astronomy & …, 2018 - aanda.org
A proper understanding of the Milky Way (MW) dwarf galaxies in a cosmological context
requires knowledge of their 3D velocities and orbits. However, proper motion (PM) …

The observed properties of dwarf galaxies in and around the Local Group

AW McConnachie - The Astronomical Journal, 2012 - iopscience.iop.org
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 …

Gaia early DR3 systemic motions of Local Group dwarf galaxies and orbital properties with a massive Large Magellanic Cloud

G Battaglia, S Taibi, GF Thomas, TK Fritz - Astronomy & Astrophysics, 2022 - aanda.org
Aims. We perform a comprehensive determination of the systemic proper motions of 74
dwarf galaxies and dwarf galaxy candidates in the Local Group based on Gaia early data …

The quenching of the ultra-faint dwarf galaxies in the reionization era

TM Brown, J Tumlinson, M Geha… - The Astrophysical …, 2014 - iopscience.iop.org
We present new constraints on the star formation histories of six ultra-faint dwarf galaxies:
Bootes I, Canes Venatici II, Coma Berenices, Hercules, Leo IV, and Ursa Major I. Our …

On a new theoretical framework for RR Lyrae stars. I. The metallicity dependence

M Marconi, G Coppola, G Bono, V Braga… - The Astrophysical …, 2015 - iopscience.iop.org
We present new nonlinear, time-dependent convective hydrodynamical models of RR Lyrae
stars computed assuming a constant helium-to-metal enrichment ratio and a broad range in …

A complete spectroscopic survey of the milky way satellite Segue 1: the darkest galaxy

JD Simon, M Geha, QE Minor… - The Astrophysical …, 2011 - iopscience.iop.org
We present the results of a comprehensive Keck/DEIMOS spectroscopic survey of the ultra-
faint Milky Way satellite galaxy Segue 1. We have obtained velocity measurements for …

The stellar initial mass function of ultra-faint dwarf galaxies: evidence for IMF variations with galactic environment

M Geha, TM Brown, J Tumlinson… - The Astrophysical …, 2013 - iopscience.iop.org
We present constraints on the stellar initial mass function (IMF) in two ultra-faint dwarf (UFD)
galaxies, Hercules and Leo IV, based on deep Hubble Space Telescope Advanced Camera …

Local-Group tests of dark-matter concordance cosmology-Towards a new paradigm for structure formation

P Kroupa, B Famaey, KS de Boer… - Astronomy & …, 2010 - aanda.org
Predictions of the concordance cosmological model (CCM) of the structures in the
environment of large spiral galaxies are compared with observed properties of Local Group …