Results 51 to 60 of about 402,684 (314)
The feeble giant. Discovery of a large and diffuse Milky Way dwarf galaxy in the constellation of Crater [PDF]
, 2016 We announce the discovery of the Crater 2 dwarf galaxy, identified in imaging data of the VST ATLAS survey. Given its half-light radius of ~1100 pc, Crater 2 is the fourth largest dwarf in the Milky Way, surpassed only by the LMC, SMC and the Sgr dwarf ...
G. Torrealba +3 more
semanticscholar +1 more source
Non-circular motions and the diversity of dwarf galaxy rotation curves [PDF]
Monthly notices of the Royal Astronomical Society, 2017 We use mock interferometric H I measurements and a conventional tilted-ring modelling procedure to estimate circular velocity curves of dwarf galaxy discs from the APOSTLE suite of Λ cold dark matter cosmological hydrodynamical simulations. The modelling
K. Oman +5 more
semanticscholar +1 more source
Cusp Disruption in Minor Mergers [PDF]
, 2001 We present 0.55 x 10^6 particle simulations of the accretion of high-density dwarf galaxies by low-density giant galaxies, using models that contain both power-law central density cusps and point masses representing supermassive black holes.
David Merritt +4 more
core +2 more sources
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
On the dynamics of the Sagittarius dwarf galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 1995 We use numerical simulations to test the feasibility of the suggestion by Ibata et al. (1994) that the excess population of stars which they discovered in the Sagittarius region may be the disrupted remains of a dwarf spheroidal galaxy. We find that a Fornax-like model for the pre-disruption system can indeed reproduce the data.
Velazquez, H., White, S. D. M.
openaire +2 more sources
High Lyman Continuum Escape Fraction in a Lensed Young Compact Dwarf Galaxy at z = 2.5 [PDF]
, 2017 We present the HST WFC3/F275W UV imaging observations of A2218-Flanking, a lensed compact dwarf galaxy at redshift . The stellar mass of A2218-Flanking is and SFR is yr−1 after correcting the magnification.
F. Bian +4 more
semanticscholar +1 more source
Photoionization and the formation of dwarf galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1996 compressed postscript, 5 pages including 4 embedded figures.
Quinn, Thomas +2 more
openaire +2 more sources
An r-process Enhanced Star in the Dwarf Galaxy Tucana III [PDF]
, 2017 Chemically peculiar stars in dwarf galaxies provide a window for exploring the birth environment of stars with varying chemical enrichment. We present a chemical abundance analysis of the brightest star in the newly discovered ultra-faint dwarf galaxy ...
T. Hansen +53 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
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