Results 101 to 110 of about 13,205 (261)

A Survey for Low-Surface-Brightness Galaxies Around M31. I. The Newly Discovered Dwarf Andromeda V

, 1998
We present images and a color-magnitude diagram for And V, a new dwarf spheroidal companion to M31 that was found using a digital filtering technique applied to 1550 square degrees of the second Palomar Sky Survey.
Bertelli G., Bremmes T., Davies J. I., Dean J. F., George H. Jacoby, James E. Davies, Karachentsev I., Schmidt K.-H., Taft E. Armandroff, van den Bergh S.   +9 more
core   +3 more sources

Estimating masses of dwarf spheroidal galaxies

, 2014
6 pages, 3 figures, to be published in the Proceedings of the XXXVI Annual Meeting of the Polish Astronomical ...
Kowalczyk, Klaudia, Lokas, Ewa L.
openaire   +2 more sources

Can Dwarf Spheroidal Galaxies Host a Central Black Hole?

The Astrophysical Journal
We construct mass models of Milky Way dwarf spheroidal galaxies to place constraints on the central black hole masses they can host. We model the galaxies as a three-component system consisting of the stars, dark matter halo, and a central black hole ...
K. Aditya, A. Mangalam
doaj   +1 more source

Origin of structural and kinematical properties of the Small Magellanic Cloud

, 2009
We investigate structural, kinematical, and chemical properties of stars and gas in the Small Magellanic Cloud (SMC) interacting with the Large Magellanic Cloud (LMC) and the Galaxy based on a series of self-consistent chemodynamical simulations.
Bekki, Binney, Broeils, Brüns, Cioni, Hatzidimitriou, Idiart, Kato, Kenji Bekki, Masashi Chiba, Monaghan, Murai, Noguchi, Spite   +13 more
core   +1 more source

Impulsive Mixing of Stellar Populations in Dwarf Spheroidal Galaxies

The Astrophysical Journal
We study the response of mono-energetic stellar populations with initially isotropic kinematics to impulsive and adiabatic changes to an underlying dark matter potential.
Raphaël Errani, Matthew G. Walker, Simon Rozier, Jorge Peñarrubia, Julio F. Navarro   +4 more
doaj   +1 more source

Machine Learning Techniques to Distinguish Giant Stars from Dwarf Stars Using Only Photometry—Pushing Redward

The Astronomical Journal
We present our photometric method, which combines Subaru/Hyper Suprime-Cam N B 515, g -band, and i- band filters to distinguish giant stars in Local Group galaxies from Milky Way dwarf contamination.
Keyi Ding, Carrie Filion, Rosemary F.G. Wyse, Evan N. Kirby, Itsuki Ogami, Masashi Chiba, Yutaka Komiyama, László Dobos, Alexander S. Szalay   +8 more
doaj   +1 more source

A UNIVERSAL MASS PROFILE FOR DWARF SPHEROIDAL GALAXIES?

The Astrophysical Journal, 2009
Replacement provides corrections to values of half-light radii adopted for eight classical dSphs, including revised tables and figures (conclusions are unchanged).
Walker, Matthew G., Mateo, Mario, Olszewski, Edward W., Peñarrubia, Jorge, Evans, N. Wyn, Gilmore, Gerard   +5 more
openaire   +2 more sources

The Tucana dwarf spheroidal: a distant backsplash galaxy of M31? [PDF]

, 2022
Isabel Santos-Santos, Julio F. Navarro, Alan W. McConnachie   +2 more
openalex   +1 more source

An Analytical Galactic Chemical Evolution Model with Gas Inflow and a Terminal Wind

The Astrophysical Journal
We present a new analytical galactic chemical evolution (GCE) model with gas inflow, internally caused outflow, and extra gas loss after a period of time. The latter mimics the ram pressure stripping of a dwarf satellite galaxy near the pericenter of its
Kateryna A. Kvasova, Evan N. Kirby
doaj   +1 more source

Searches for HI in the Outer Parts of Four Dwarf Spheroidal Galaxies

, 1999
Previous searches for atomic gas in our Galaxy's dwarf spheroidal companions have not been complete enough to settle the question of whether or not these galaxies have HI, especially in their outer parts.
Young, L. M.
core   +2 more sources