Results 11 to 20 of about 339,165 (211)
Snake in the Clouds: a new nearby dwarf galaxy in the Magellanic bridge* [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 We report the discovery of a nearby dwarf galaxy in the constellation of Hydrus, between the Large and the Small Magellanic Clouds. Hydrus 1 is a mildy elliptical ultra-faint system with luminosity MV ∼ −4.7 and size 53 ± 3 pc, located 28 kpc from the
Sergey E. Koposov +11 more
semanticscholar +3 more sources
The feeble giant. Discovery of a large and diffuse Milky Way dwarf galaxy in the constellation of Crater [PDF]
Monthly Notices of the Royal Astronomical Society, 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 +3 more sources
Ultra-compact dwarf galaxy formation by tidal stripping of nucleated dwarf galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 Ultra Compact Dwarf Galaxies (UCDs) and dwarf galaxy nuclei have many common properties, such as internal velocity dispersions and colour-magnitude trends, suggesting tidally stripped dwarf galaxies as a possible UCD origin. However, UCDs typically have sizes more than twice as large as nuclei at the same luminosity. We use a GPU-enabled version of the
Pfeffer, J., Baumgardt, H.
openaire +5 more sources
The dwarf galaxy satellite system of Centaurus A [PDF]
Astronomy & Astrophysics, 2019 Dwarf galaxy satellite systems are essential probes to test models of structure formation, making it necessary to establish a census of dwarf galaxies outside of our own Local Group. We present deep FORS2 VI band images from the ESO Very Large Telescope (
O. Müller +6 more
semanticscholar +1 more source
Baryonic clues to the puzzling diversity of dwarf galaxy rotation curves [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We use a compilation of disc galaxy rotation curves to assess the role of the luminous component (‘baryons’) in the rotation curve diversity problem. As in earlier work, we find that rotation curve shape correlates with baryonic surface density: high ...
I. Santos-Santos +9 more
semanticscholar +1 more source
The Local Group on FIRE: dwarf galaxy populations across a suite of hydrodynamic simulations [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present a new set of high-resolution hydrodynamic cosmological zoom-in simulations that apply the Feedback In Realistic Environments physics to both Local Group (LG)-like and isolated Milky Way (MW)-like volumes (10 host systems in total with a ...
S. Garrison-Kimmel +10 more
semanticscholar +1 more source
Formation of a Massive Lenticular Galaxy Under the Tidal Interaction with a Group of Dwarf Galaxies
The Astrophysical Journal Letters, 2023 Based on the atomic-hydrogen (H i ) observations using the Five-hundred-meter Aperture Spherical radio Telescope, we present a detailed study of the gas-rich massive S0 galaxy NGC 1023 in a nearby galaxy group.
Jin-Long Xu +8 more
doaj +1 more source
Dwarf elliptical galaxies as ancient tidal dwarf galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 The formation of tidal dwarf galaxies (TDGs) is triggered by the encounters of already existing galaxies. Their existence is predicted from numerical calculations of encountering galaxies and is also well documented with observations. The numerical calculations on the formation of TDGs furthermore predict that TDGs cannot contain significant amounts of
Dabringhausen, Jörg, Kroupa, Pavel
openaire +2 more sources
Bibechana, 2021 We present a spectroscopic study of an interacting emission-line dwarf galaxy SDSS J134326.99+431118.7. We analyzed eight-strong emission lines of wavelength in a range of 3902.1Å to 6619.1Å.
Daya Nidhi Chhatkuli +2 more
doaj +3 more sources
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