Results 31 to 40 of about 402,684 (314)

Footprints of the Sagittarius dwarf galaxy in the Gaia data set [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
We analyse an N-body simulation of the interaction of the Milky Way (MW) with a Sagittarius-like dSph (Sgr), looking for signatures which may be attributed to its orbital history in the phase space volume around the Sun in light of Gaia DR2 discoveries.
C. Laporte   +3 more
semanticscholar   +1 more source

THE NATURE OF RED DWARF GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2009
9 pages, 8 figures, Accepted for publication in ...
Wang, Y   +7 more
openaire   +3 more sources

Two Candidates for Dual AGN in Dwarf-dwarf Galaxy Mergers

open access: yesThe Astrophysical Journal, 2023
Dual active galactic nuclei (DAGN) are important for understanding galaxy-merger-triggered fueling of black holes and the hierarchical growth of structures.
Marko Mićić   +3 more
doaj   +1 more source

Morphological transformation of dwarf galaxies in the Local Group [PDF]

open access: yes, 2015
In the Local Group there are three main types of dwarf galaxies: Dwarf Irregulars, Dwarf Spheroidals, and Dwarf Ellipticals. Intermediate/transitional types are present as well.
Carraro, Giovanni
core   +1 more source

The Next Generation Fornax Survey (NGFS). II. The Central Dwarf Galaxy Population [PDF]

open access: yes, 2018
We present a photometric study of the dwarf galaxy population in the core region (≲rvir/4) of the Fornax galaxy cluster based on deep u′g′i′ photometry from the Next Generation Fornax Cluster Survey.
P. Eigenthaler   +25 more
semanticscholar   +1 more source

The Leo-I group: new dwarf galaxy and ultra diffuse galaxy candidates [PDF]

open access: yesAstronomy & Astrophysics, 2018
Context. The study of dwarf galaxies and their environments provides crucial test beds for predictions of cosmological models and insights into the structure formation on small cosmological scales. In recent years, many problems on the scale of groups of
O. Müller, H. Jerjen, B. Binggeli
semanticscholar   +1 more source

Dwarf Galaxies with the Highest Concentration Are Not Thicker than Ordinary Dwarf Galaxies

open access: yesThe Astrophysical Journal, 2023
Abstract The formation mechanism of high-concentration dwarf galaxies is still a mystery. We perform a comparative study of the intrinsic shape of nearby low-mass galaxies with different stellar concentration. The intrinsic shape is parameterized by the intermediate-to-major axis ratios B/A and the minor-to-major axis ratios C/A of ...
Lijun Chen   +7 more
openaire   +3 more sources

A Nearby Isolated Dwarf: Star Formation and Structure of ESO 006–001

open access: yesThe Astrophysical Journal, 2023
Observations with the Hubble Space Telescope unexpectedly revealed that the dwarf galaxy ESO 006–001 is a near neighbor to the Local Group at a distance of 2.70 ± 0.11 Mpc.
Lidia N. Makarova   +6 more
doaj   +1 more source

Harassment Origin for Kinematic Substructures in Dwarf Elliptical Galaxies? [PDF]

open access: yes, 2005
We have run high resolution N-body models simulating the encounter of a dwarf galaxy with a bright elliptical galaxy. The dwarf absorbs orbital angular momentum and shows counter-rotating features in the external regions of the galaxy.
A. C. González-García   +38 more
core   +3 more sources

Current Velocity Data on Dwarf Galaxy NGC 1052-DF2 do not Constrain it to Lack Dark Matter [PDF]

open access: yes, 2018
It was recently proposed that the globular cluster system of the very low surface brightness galaxy NGC 1052-DF2 is dynamically very cold, leading to the conclusion that this dwarf galaxy has little or no dark matter.
N. Martin   +3 more
semanticscholar   +1 more source

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