Results 1 to 10 of about 12,885 (260)

A vast, thin plane of corotating dwarf galaxies orbiting the Andromeda galaxy

open access: yesNature, 2013
Dwarf satellite galaxies are thought to be the remnants of the population of primordial structures that coalesced to form giant galaxies like the Milky Way.
Rodrigo A Ibata   +2 more
exaly   +4 more sources

Dependence of stellar substructures in M31 type galaxy on satellite morphology in galaxy mergers [PDF]

open access: yesSerbian Astronomical Journal, 2022
Stellar streams and shells are observed in halos of spiral galaxies. In this paper, we investigated the formation of these structures due to mergers between the host spiral galaxy and its dwarf satellite galaxies.
Milošević S.
doaj   +1 more source

Manganese in dwarf spheroidal galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2012
19 pages, 10 figures, accepted for publication in Astronomy & ...
Mike Irwin   +14 more
openaire   +6 more sources

Searching for TeV Dark Matter in Irregular Dwarf Galaxies with HAWC Observatory

open access: yesThe Astrophysical Journal, 2023
We present the results of dark matter (DM) searches in a sample of 31 dwarf irregular (dIrr) galaxies within the field of view of the HAWC Observatory.
R. Alfaro   +72 more
doaj   +1 more source

Dwarf Spheroidal Galaxies in the Virgo Cluster [PDF]

open access: yesThe Astrophysical Journal, 1998
We present a study of the smallest and faintest galaxies found in a very deep photographic R band survey of regions of the Virgo Cluster, totalling over 3 square degrees, made with the UK Schmidt Telescope. The objects we detect have the same physical sizes and surface brightnesses as Local Group dwarf spheroidal galaxies.
Jones, JB   +3 more
openaire   +6 more sources

Dwarfs in Void Environments (DIVE): The Stellar Kinematics of Void Dwarf Galaxies Using the Keck Cosmic Web Imager

open access: yesThe Astrophysical Journal, 2023
Dwarf galaxies located in extremely underdense cosmic voids are excellent test beds for disentangling the effects of large-scale environments on galaxy formation and evolution. We present the first results of the Dwarfs in Void Environments Survey, which
Mithi A. C. de los Reyes   +5 more
doaj   +1 more source

Gravitational tides and dwarf spheroidal galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2014
The effect of the local environment on the evolution of dwarf spheroidal galaxies is poorly understood. We have undertaken a suite of simulations to investigate the tidal impact of the Milky Way on the chemodynamical evolution of dwarf spheroidals that resemble present day classical dwarfs using the SPH code GEAR.
Pascale Jablonka   +3 more
openaire   +5 more sources

Mass Modelling of dwarf Spheroidal Galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2007
AbstractWe study the origin and properties of unbound stars in the kinematic samples of dwarf spheroidal galaxies. For this purpose we have run a high resolution N-body simulation of a two-component dwarf galaxy orbiting in a Milky Way potential. We create mock kinematic data sets by observing the dwarf in different directions.
Klimentowski, J   +5 more
openaire   +3 more sources

Life and times of dwarf spheroidal galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2008
12 pages, 6 figures, MNRAS ...
SALVADORI, STEFANIA   +2 more
openaire   +5 more sources

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