Results 41 to 50 of about 339,165 (211)
The M 101 group complex: new dwarf galaxy candidates and spatial structure [PDF]
, 2017 Context. The fine details of the large-scale structure in the local Universe provide important empirical benchmarks for testing cosmological models of structure formation. Dwarf galaxies are key object for such studies. Aims.
O. Muller +3 more
semanticscholar +1 more source
APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy [PDF]
, 2017 The Apache Point Observatory Galactic Evolution Experiment provides the opportunity of measuring elemental abundances for C, N, O, Na, Mg, Al, Si, P, K, Ca, V, Cr, Mn, Fe, Co, and Ni in vast numbers of stars.
S. Hasselquist +28 more
semanticscholar +1 more source
Highlights of Astronomy, 1998 The life and evolution of galaxies are dramatically affected by environmental effects. Interactions with the intergalactic medium and collisions with companions cause major perturbations in the morphology and contents of galaxies: in particular stars and gas clouds may be gravitationally pulled out from their parent galaxies during tidal encounters ...
P.-A. Duc, I.F. Mirabel, E. Brinks
openaire +1 more source
Discovery of Diffuse Dwarf Galaxy Candidates around M101 [PDF]
, 2017 We have conducted a search of a 9 deg2 region of the Canada–France–Hawaii-Telescope Legacy Survey around the Milky Way analog M101 (D ∼ 7 Mpc), in order to look for previously unknown low-surface-brightness galaxies.
P. Bennet +7 more
semanticscholar +1 more source
Eight per cent leakage of Lyman continuum photons from a compact, star-forming dwarf galaxy [PDF]
Nature, 2016 One of the key questions in observational cosmology is the identification of the sources responsible for ionization of the Universe after the cosmic ‘Dark Ages’, when the baryonic matter was neutral.
Y. Izotov +7 more
semanticscholar +1 more source
NIHAO XV: the environmental impact of the host galaxy on galactic satellite and field dwarf galaxies [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We study the impact of the host on dwarf galaxy properties using four new Milky Way-like, ultra high-resolution simulations, ($N_{\rm part} >10^7$) from the NIHAO project. We split our sample in satellite ($R 2.5 R_{\rm 200}$) galaxies.
T. Buck +4 more
semanticscholar +1 more source
Uncovering blue diffuse dwarf galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 Extremely metal poor (XMP) galaxies are known to be very rare, despite the large numbers of low-mass galaxies predicted by the local galaxy luminosity function. This paper presents a sub-sample of galaxies that were selected via a morphology-based search on SDSS images with the aim of finding these elusive XMP galaxies. By using the recently discovered
B. L. James +5 more
openaire +3 more sources
The 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
Understanding the shape and diversity of dwarf galaxy rotation curves in ΛCDM [PDF]
, 2016 The shape and wide diversity of dwarf galaxy rotation curves is at apparent odds with dark matter halos in LCDM. We generate mock rotation curve data from dwarf galaxy simulations to show that this owes to bursty star formation driven by stellar feedback.
J. Read +4 more
semanticscholar +1 more source
Sagittarius: the nearest dwarf galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 1995 MNRAS in press, 22pp uuencoded PS file, 26 printed figures available on request from gil@ast.cam.ac ...
Ibata, Rodrigo +2 more
openaire +2 more sources