Results 151 to 160 of about 12,845 (268)

Assessing the Association between the Globular Cluster NGC 4147 and the Sagittarius Dwarf Galaxy

The Astronomical Journal
The potential association of the globular cluster (GC) NGC 4147 with the Sagittarius (Sgr) dwarf spheroidal galaxy has been proposed due to their comparable locations and radial velocities. However, there are still debates about this connection.
Ying-Hua Zhang, Jundan Nie, Hao Tian, Chao Liu   +3 more
doaj   +1 more source

Variable stars in Fornax dwarf spheroidal galaxy

, 2005
10 pages, 9 figures, to appear in the Proceedings of "Resolved Stellar Populations", 2005, Cancun ...
Greco, C., Clementini, G., Held, E. V., Poretti, E., Catelan, M., Dell'Arciprete, L., Gullieuszik, M., Maio, M., Rizzi, L., Smith, H. A., Pritzl, B. J., Rest, A., De Lee, N.   +12 more
openaire   +2 more sources

Indirect searches for dark matter annihilations toward dwarf spheroidal\n galaxies with VERITAS [PDF]

, 2011
M. Vivier
openalex   +1 more source

The Draco Dwarf Spheroidal Galaxy in the First Year of Dark Energy Spectroscopic Instrument Data

The Astrophysical Journal
We investigate the spatial distribution, kinematics, and metallicity of stars in the Draco dwarf spheroidal galaxy using data from the Dark Energy Spectroscopic Instrument (DESI).
J. Ding, C. Rockosi, Ting S. Li, S. E. Koposov, A. H. Riley, W. Wang, A. P. Cooper, N. Kizhuprakkat, M. Lambert, G. E. Medina, N. Sandford, J. Aguilar, S. Ahlen, D. Bianchi, D. Brooks, T. Claybaugh, A. de la Macorra, P. Doel, J. E. Forero-Romero, E. Gaztañaga, S. Gontcho A Gontcho, G. Gutierrez, J. Guy, M. Ishak, R. Kehoe, T. Kisner, A. Kremin, O. Lahav, M. Landriau, L. Le Guillou, A. Meisner, R. Miquel, J. Moustakas, F. Prada, I. Pérez-Ràfols, G. Rossi, E. Sanchez, M. Schubnell, J. Silber, D. Sprayberry, G. Tarlé, B. A. Weaver, R. Zhou   +42 more
doaj   +1 more source

Effects of Dark Matter Self-interactions on Sagittarius and its Stream

The Astrophysical Journal
This work explores how assumptions regarding the particle-physics nature of dark matter can alter the evolution of the Sagittarius (Sgr) dwarf spheroidal galaxy and its expansive stellar stream.
Connor Hainje, Oren Slone, Mariangela Lisanti, Denis Erkal   +3 more
doaj   +1 more source

The giant branch of the Fornax dwarf spheroidal galaxy [PDF]

, 1990
R. Sagar, M. R. S. Hawkins, R. D. Cannon
openalex   +1 more source

Insights from the outskirts: Chemical and dynamical properties in the outer parts of the Fornax dwarf spheroidal galaxy [PDF]

, 2014
Benjamin Hendricks, Andreas Koch, Matthew G. Walker, Christian I. Johnson, Jorge Peñarrubia, G. Gilmore   +5 more
openalex   +1 more source

The Apache Point Observatory Extra-galactic Evolution Experiment (APOeGEE): Chemical Abundance Trends for Seven Dwarf Spheroidal Galaxies in the APOGEE Survey

The Astrophysical Journal
In addition to comprehensive surveys of the Milky Way (MW) bulge, disk, and halo, the Apache Point Galactic Evolution Experiment (APOGEE) project observed seven dwarf spheroidal satellites (dSphs) of the MW: Carina, Sextans, Sculptor, Draco, Ursa Minor ...
Matthew Shetrone, Rachael L. Beaton, Christian R. Hayes, Sten Hasselquist, Joshua D. Simon, Jon A. Holtzman, Katia Cunha, Steven R. Majewski, Jennifer Sobeck, Ricardo Schiavon, Thomas Masseron, Verne V. Smith, David L. Nidever   +12 more
doaj   +1 more source

Dwarf spheroidal galaxies and dark matter [PDF]

Proceedings of VIII International Workshop on the Dark Side of the Universe — PoS(DSU 2012), 2013
MATIAS Blaña Díaz, Michael Fellhauer, Rory Smith   +2 more
openaire   +1 more source

Dynamical Friction by Coupled Dark Energy

The Astrophysical Journal
In this paper, we examine dynamical friction at galactic scales within the framework of coupled dark energy (CDE). This model posits dark energy as coupled quintessence, which maintains a minimal coupling to gravity but interacts nonminimally with both ...
Nasrin Nari, Mahmood Roshan
doaj   +1 more source