Results 21 to 30 of about 1,735 (217)
Dwarf spheroidal galaxies: Keystones of galaxy evolution [PDF]
Publications of the Astronomical Society of the Pacific, 1994 Dwarf spheroidal galaxies are the most insignificant extragalactic stellar systems in terms of their visibility, but potentially very significant in terms of their role in the formation and evolution of much more luminous galaxies. We discuss the present observational data and their implications for theories of the formation and evolution of both dwarf
Gallagher III, John S. +1 more
openaire +2 more sources
Stellar Density Profiles of Dwarf Spheroidal Galaxies - Posterior Distributions [PDF]
, 2020 This archive contains samples from the posterior distributions of our 3-plummer, 1-plummer, 3-steeper and 1-steeper fits for 40 dwarf spheroidal galaxies as described in "Stellar Density Profiles of Dwarf Spheroidal Galaxies" (https://arxiv.org/abs/1910 ...
Matthew Walker +3 more
core +1 more source
Kinematic subpopulations in dwarf spheroidal galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 Submitted to ...
Ural, Uğur +9 more
openaire +3 more sources
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
Dwarf Spheroidal Galaxies [PDF]
Symposium - International Astronomical Union, 1994 Dwarf Spheroidal (dSph) galaxies are the faintest baryonic systems recognized as galaxies. Understanding the structure and stellar populations of these systems is critical for the modelling of their formation and evolution, and by extension, for understanding the general problem of galaxy formation ...
openaire +1 more source
Chemical and kinematical evolution in nearby dwarf spheroidal galaxies [PDF]
, 2006 Dwarf spheroidal (dSph) galaxies are the least massive and luminous objects known to exist. These galaxies are often considered as the fossil building blocks of massive systems predicted by some cosmological models.
Koch, Andreas
core +1 more source
The Origin Of Dwarf Spheroidal Galaxies [PDF]
Symposium - International Astronomical Union, 1983 Two dwarf spheroidal galaxies are associated with the Magellanic Stream with their major axes oriented along it. Evidence suggests that all the dwarf spheroidal satellites of the Galaxy belong to one or other of two streams of tidal debris. If this is true the orbits will give the first reliable determination of the total mass of the Galaxy out to 120 ...
openaire +1 more source
A recent merger in the Fornax dwarf spheroidal galaxy [PDF]
, 2016 This contribution describes a recent photometric survey of the Fornax dwarf spheroidal galaxy. CCD photometry in two colours (V and I) was obtained for a 10 degree2 region centred on Fornax.
Coleman, Matthew
core +1 more source
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.
Grebel, Eva K. +2 more
openaire +2 more sources
The dwarf spheroidal galaxies around the milky way [PDF]
, 2007 We review the progress of ESO/WFI Imaging and VLT/FLAMES spectroscopy of large numbers of individual stars in nearby dwarf spheroidal galaxies by the Dwarf Abundances and Radial-velocities Team (DART).
Battaglia, G. +4 more
core +4 more sources