Results 21 to 30 of about 402,684 (314)
THE METALLICITY OF VOID DWARF GALAXIES [PDF]
The Astrophysical Journal, 2014 The current Lambda CDM cosmological model predicts that galaxy evolution proceeds more slowly in lower density environments, suggesting that voids are a prime location to search for relatively pristine galaxies that are representative of the building blocks of early massive galaxies.
K. Kreckel +4 more
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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
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
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
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
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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
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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 +1 more source
An Overview of the Dwarf Galaxy Survey [PDF]
Publications of the Astronomical Society of the Pacific, 2013 The Dwarf Galaxy Survey (DGS) program is studying low-metallicity galaxies using 230h of far-infrared (FIR) and submillimetre (submm) photometric and spectroscopic observations of the Herschel Space Observatory and draws to this a rich database of a wide range of wavelengths tracing the dust, gas and stars.
Madden, S. C. +40 more
openaire +7 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