Results 11 to 20 of about 331,024 (213)

The Faintest Dwarf Galaxies [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2019
The lowest luminosity ([Formula: see text] L[Formula: see text]) Milky Way satellite galaxies represent the extreme lower limit of the galaxy luminosity function. These ultra-faint dwarfs are the oldest, most dark matter–dominated, most metal-poor, and least chemically evolved stellar systems known.
J. Simon
openaire   +5 more sources

AGN feedback in dwarf galaxies? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
6 pages, 5 ...
Dashyan, Gohar   +4 more
openaire   +6 more sources

The Gas Content and Stripping of Local Group Dwarf Galaxies [PDF]

open access: yesAstrophysical Journal, 2021
The gas content of the complete compilation of Local Group dwarf galaxies (119 within 2 Mpc) is presented using H i survey data. Within the virial radius of the Milky Way (224 kpc here), 53 of 55 dwarf galaxies are devoid of gas to limits of M H i < 104 ...
M. Putman   +6 more
semanticscholar   +1 more source

Hidden AGNs in Dwarf Galaxies Revealed by MaNGA: Light Echoes, Off-nuclear Wanderers, and a New Broad-line AGN [PDF]

open access: yesAstrophysical Journal, 2020
Active galactic nuclei (AGNs) in dwarf galaxies could host the relics of those early universe seed black holes that did not grow into supermassive black holes. Using MaNGA integral field unit (IFU) spectroscopy we have found a sample of 37 dwarf galaxies
M. Mezcua, Helena Domínguez Sánchez
semanticscholar   +1 more source

A New Sample of (Wandering) Massive Black Holes in Dwarf Galaxies from High-resolution Radio Observations [PDF]

open access: yesAstrophysical Journal, 2019
We present a sample of nearby dwarf galaxies with radio-selected accreting massive black holes (BHs), the majority of which are non-nuclear. We observed 111 galaxies using sensitive, high-resolution observations from the Karl G.
A. Reines   +3 more
semanticscholar   +1 more source

Gaia DR2 proper motions of dwarf galaxies within 420 kpc [PDF]

open access: yesAstronomy & Astrophysics, 2018
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) measurements have generally been of limited accuracy and are available only for more ...
T. Fritz   +8 more
semanticscholar   +1 more source

Star formation histories of dwarf galaxies in the FIRE simulations: dependence on mass and Local Group environment [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
We study star formation histories (SFHs) of 500 dwarf galaxies (stellar mass $M_\ast =10^5\!-\!10^9\, \rm {M}_\odot$) from FIRE-2 cosmological zoom-in simulations. We compare dwarfs around individual Milky Way (MW)-mass galaxies, dwarfs in Local Group (
S. Garrison-Kimmel   +17 more
semanticscholar   +1 more source

AGN-Driven Outflows in Dwarf Galaxies [PDF]

open access: yesAstrophysical Journal, 2019
We present spatially resolved kinematic measurements of active galactic nucleus (AGN)-driven outflows in dwarf galaxies in the stellar mass range ∼6 × 108–9 × 109 M⊙, selected from SDSS DR7 and DR8 and followed-up with Keck/LRIS spectroscopy.
Christina M. Manzano-King   +2 more
semanticscholar   +1 more source

Neutron-capture elements in dwarf galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2019
Context. We present a large homogeneous set of stellar parameters and abundances across a broad range of metallicities, involving 13 classical dwarf spheroidal (dSph) and ultra-faint dSph (UFD) galaxies. In total, this study includes 380 stars in Fornax,
Á. Skúladóttir   +5 more
semanticscholar   +1 more source

THE OBSERVED PROPERTIES OF DWARF GALAXIES IN AND AROUND THE LOCAL GROUP [PDF]

open access: yes, 2012
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.
A. McConnachie
semanticscholar   +1 more source

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