Results 1 to 10 of about 10,091 (187)
The Pristine dwarf galaxy survey–V. The edges of the dwarf galaxy Hercules
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT We present a new spectroscopic study of 175 stars in the vicinity of the dwarf galaxy Hercules (d ∼ 132 kpc) with data from the Anglo-Australian Telescope and its AAOmega spectrograph together with the Two Degree Field multi-object system to solve the conundrum that whether Hercules is tidally disrupting.
Pascale Jablonka +2 more
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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
Holger Baumgardt
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Symposium - International Astronomical Union, 1999 We review the observational evidences for tidal dwarf galaxies, a class of small galaxies formed out of the tidal debris of collisions between massive galaxies. Tidal dwarfs are found far from the interacting parent galaxies, associated with massive clouds of atomic hydrogen located at the tip of long tidal tails.
Duc, Pierre-Alain, Mirabel, Felix
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Advances in Astronomy, 2010 This is the editorial paper which introduces the Special Issue on Dwarf-Galaxy Cosmology published in Advances in Astronomy. The issue contains fourteen review papers, and one original research article. All papers were peer-reviewed by a minimum of two referees. To read the Special Issue, please follow this link: http://www.hindawi.com/journals/aa/2010/
Regina Schulte-Ladbeck +3 more
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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
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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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THE NATURE OF RED DWARF GALAXIES [PDF]
The Astrophysical Journal, 2009 9 pages, 8 figures, Accepted for publication in ...
Wang, Y +7 more
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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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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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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
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