Results 31 to 40 of about 394,077 (286)
Simulating an isolated dwarf galaxy with multichannel feedback and chemical yields from individual stars [PDF]
Monthly notices of the Royal Astronomical Society, 2018 In order to better understand the relationship between feedback and galactic chemical evolution, we have developed a new model for stellar feedback at grid resolutions of only a few parsecs in global disk simulations, using the adaptive mesh refinement ...
A. Emerick +2 more
semanticscholar +1 more source
Satellites and haloes of dwarf galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 We study the abundance of satellite galaxies as a function of primary stellar mass using the SDSS/DR7 spectroscopic catalogue. In contrast with previous studies, which focussed mainly on bright primaries, our central galaxies span a wide range of stellar mass, 10^7.5 < M_*^pri/M_sun < 10^11, from dwarfs to central cluster galaxies.
Sales, L.V. +3 more
openaire +4 more sources
DWARF GALAXIES OF THE LOCAL GROUP [PDF]
Annual Review of Astronomy and Astrophysics, 1998 ▪ Abstract The Local Group dwarf galaxies offer a unique window to the detailed properties of the most common type of galaxy in the Universe. In this review, I update the census of Local Group dwarfs based on the most recent distance and radial velocity determinations.
Mario Mateo
openalex +4 more sources
Current Velocity Data on Dwarf Galaxy NGC 1052-DF2 do not Constrain it to Lack Dark Matter [PDF]
, 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
Footprints of the Sagittarius dwarf galaxy in the Gaia data set [PDF]
Monthly 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
Dwarf Galaxies with the Highest Concentration Are Not Thicker than Ordinary Dwarf Galaxies
The 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
Вісник Астрономічної школи, 2004 In this work we have simulated the evolution of disk and dwarf galaxies gravitating system, using our viscosity algorithm. We investigated changes in disk galaxy chemical abundance due to minor merger of dwarf galaxy with lower abundance of heavy ...
T. A. Shumakova, P. P. Berczik
doaj +1 more source
Harassment Origin for Kinematic Substructures in Dwarf Elliptical Galaxies? [PDF]
, 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
The Next Generation Fornax Survey (NGFS). II. The Central Dwarf Galaxy Population [PDF]
, 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]
Astronomy & 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