Results 31 to 40 of about 34,432 (305)
Manganese in dwarf spheroidal galaxies [PDF]
Astronomy & Astrophysics, 2012 We provide manganese abundances (corrected for the effect of the hyperfine structure) for a large number of stars in the dwarf spheroidal galaxies Sculptor and Fornax and for a smaller number in the Carina and Sextans dSph galaxies. Abundances had already been determined for a number of other elements in these galaxies including a and iron peak ones ...
North P., Cescutti G, Jablonka P.
openaire +6 more sources
Rediscovery of the Sixth Star Cluster in the Fornax Dwarf Spheroidal Galaxy [PDF]
Astrophysical Journal, 2019 Since first noticed by Shapley in 1939, a faint object coincident with the Fornax dwarf spheroidal has long been discussed as a possible sixth globular cluster (GC) system.
Mei-Yu Wang +60 more
semanticscholar +1 more source
Dwarf Spheroidal Galaxies in the Virgo Cluster [PDF]
The Astrophysical Journal, 1998 We present a study of the smallest and faintest galaxies found in a very deep photographic R band survey of regions of the Virgo Cluster, totalling over 3 square degrees, made with the UK Schmidt Telescope. The objects we detect have the same physical sizes and surface brightnesses as Local Group dwarf spheroidal galaxies.
Jones, JB +3 more
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The quest for dark matter in dwarf spheroidal galaxies with the Cherenkov Telescope Array [PDF]
EPJ Web of Conferences, 2019 Dwarf spheroidal galaxies are among the best environments that can be studied with Cherenkov telescopes for indirect searches of γ-ray signals coming from dark matter self-interaction (annihilation or decay), due to their proximity and negligible ...
Saturni Francesco G. +2 more
doaj +1 more source
Mass Modelling of dwarf Spheroidal Galaxies [PDF]
Proceedings of the International Astronomical Union, 2007 AbstractWe study the origin and properties of unbound stars in the kinematic samples of dwarf spheroidal galaxies. For this purpose we have run a high resolution N-body simulation of a two-component dwarf galaxy orbiting in a Milky Way potential. We create mock kinematic data sets by observing the dwarf in different directions.
Klimentowski, J +5 more
openaire +3 more sources
The star formation history of the Sextans dwarf spheroidal galaxy: a true fossil of the pre-reionization era [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present the star formation history (SFH) of the Sextans dwarf spheroidal galaxy based on deep archive $B$,$I$ photometry taken with Suprime-Cam at Subaru telescope focusing our analysis on the inner region of the galaxy, fully located within the core ...
Marco Bettinelli +4 more
semanticscholar +1 more source
Stellar chemo-kinematics of the Cetus dwarf spheroidal galaxy [PDF]
Astronomy & Astrophysics, 2018 Context. The great majority of early-type dwarf galaxies, in the Local Group as well as in other galaxy groups, are found in the vicinity of much larger galaxies, making it hard to disentangle the role of internal versus external effects in driving their
S. Taibi +12 more
semanticscholar +1 more source
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,
Armandroff, Taft E., Da Costa, Gary S.
openaire +2 more sources
Schwarzschild dynamical model of the Fornax dwarf spheroidal galaxy [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present a full dynamical model of the Fornax dwarf spheroidal galaxy obtained with the spherically symmetric Schwarzschild orbit superposition method applied to the largest kinematic data set presently available.
K. Kowalczyk +3 more
semanticscholar +1 more source
The Population of Pulsating Variable Stars in the Sextans Dwarf Spheroidal Galaxy [PDF]
Astronomical Journal, 2018 A large extension of the Sextans dwarf spheroidal galaxy, 7 deg2, has been surveyed for variable stars using the Dark Energy Camera at the Blanco Telescope at Cerro Tololo Inter-American Observatory, Chile.
Kathy Vivas +4 more
semanticscholar +1 more source