Results 1 to 10 of about 23,012 (280)
The Andromeda Dwarf Spheroidal Galaxies [PDF]
Symposium - International Astronomical Union, 1999 Our current knowledge of M31's dwarf spheroidal companions is reviewed. Two topics of recent interest constitute the bulk of this review. First, color-magnitude diagrams reaching below the horizontal branch have been constructed for two M31 dwarf spheroidals, based on images from HST/WFPC2. The horizontal branches are predominantly red in both galaxies,
T. E. Armandroff, G. S. Da Costa
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The chemical evolution of the dwarf spheroidal galaxy Sextans [PDF]
Astronomy & Astrophysics, 2019 We present our analysis of the FLAMES dataset targeting the central 25′ region of the Sextans dwarf spheroidal galaxy (dSph). This dataset is the third major part of the high-resolution spectroscopic section of the ESO large program 171.B-0588(A ...
R. Theler +13 more
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Zinc in the Sculptor dwarf spheroidal galaxy [PDF]
Astronomy & Astrophysics, 2017 From ESO VLT/FLAMES/GIRAFFE spectra, abundance measurements of Zn have been made in $\approx$100 individual red giant branch (RGB) stars in the Sculptor dwarf spheroidal galaxy.
'Asa Sk'ulad'ottir +4 more
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The Progenitors of Dwarf Spheroidal Galaxies [PDF]
The Astronomical Journal, 2003 Dwarf spheroidal (dSph) galaxies present an evolutionary puzzle that we explore in 40 early- and late-type dwarfs in the Local Group and nearby field. Although dSphs formed stars over extended periods, today all but one are free of detectable interstellar matter (ISM), even in the Fornax dSph, where stars still formed 100 Myr ago.
E. K. Grebel +2 more
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The early days of the Sculptor dwarf spheroidal galaxy [PDF]
Astronomy & Astrophysics, 2015 We present the high-resolution spectroscopic study of five -3.9
P. Jablonka +15 more
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Metallicity gradients in the Sagittarius dwarf spheroidal galaxy [PDF]
Astronomy & Astrophysics, 2001 Metallicity gradients in the Sagittarius dwarf Galaxy (Sgr) are investigated by using infrared photometric data from the 2MASS survey. To search for metallicity effects, the giant branch in a field situated near the Center of the Sgr is compared to the giant branch in a field situated near its southern edge.
C. Alard
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Supernova Enrichment of Dwarf Spheroidal Galaxies [PDF]
The Astrophysical Journal, 2003 29 pages, 10 figures, to appear in Astrophysical ...
P. Chris Fragile +3 more
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The effect of tides on the Fornax dwarf spheroidal galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 The authors thank M. Breddels for providing Fornax's LOS velocity-dispersion profile measured in elliptical annuli and the referee, M. Wilkinson, for useful comments.
G. Battaglia, A. Sollima, C. Nipoti
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Dependence of stellar substructures in M31 type galaxy on satellite morphology in galaxy mergers [PDF]
Serbian Astronomical Journal, 2022 Stellar streams and shells are observed in halos of spiral galaxies. In this paper, we investigated the formation of these structures due to mergers between the host spiral galaxy and its dwarf satellite galaxies.
Milošević S.
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Multiple chemodynamic stellar populations of the Ursa Minor dwarf spheroidal galaxy [PDF]
Monthly notices of the Royal Astronomical Society, 2020 We present a Bayesian method to identify multiple (chemodynamic) stellar populations in dwarf spheroidal galaxies (dSphs) using velocity, metallicity, and positional stellar data without the assumption of spherical symmetry.
A. Pace +10 more
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