Results 131 to 140 of about 34,781 (306)

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

Observed Properties of Dark Matter on Small Spatial Scales [PDF]

, 2007
The nature of dark matter is one of the outstanding questions of astrophysics. The internal motions of member stars reveal that the lowest luminosity galaxies in the Local Group are the most dark-matter dominated.
Benson, Gerard Gilmore, Hilker, Rosemary F.G. Wyse, van de Ven   +4 more
core   +1 more source

Searching for dark-matter induced neutrino signals in dwarf spheroidal galaxies using 10 years of IceCube public data [PDF]

, 2023
Xue-Kang Guo, Yi-Fei Lü, Yongbo Huang, Rong-Lan Li, Ben-Yang Zhu, Yun-Feng Liang   +5 more
openalex   +1 more source

Dark matter annihilation and decay in dwarf spheroidal galaxies: the classical and ultrafaint dSphs [PDF]

, 2015
Dwarf spheroidal (dSph) galaxies are prime targets for present and future gamma-ray telescopes hunting for indirect signals of particle dark matter.
V. Bonnivard, C. Combet, M. Daniel, S. Funk, A. Geringer-Sameth, J. Hinton, D. Maurin, J. Read, Subir Sarkar, S. Sarkar, M. Walker, M. Wilkinson   +11 more
semanticscholar   +1 more source

STELLAR KINEMATICS OF THE ANDROMEDA II DWARF SPHEROIDAL GALAXY [PDF]

The Astrophysical Journal, 2012
14 pages, 10 figures, 4 tables, accepted for publication in ...
Ho, Nhung, Geha, M., Munoz, R. R., Guhathakurta, P., Kalirai, J., Gilbert, K. M., Tollerud, E., Bullock, J., Beaton, R. L., Majewski, S. R.   +9 more
openaire   +5 more sources

DELVE-DEEP Survey: The Faint Satellite System of NGC 55

The Astrophysical Journal
We report the first comprehensive census of the satellite dwarf galaxies around NGC 55 (2.1 Mpc) as a part of the DECam Local Volume Exploration DEEP (DELVE-DEEP) survey. NGC 55 is one of four isolated, Magellanic analogs in the Local Volume around which
Jonah Medoff, Burçin Mutlu-Pakdil, Jeffrey L. Carlin, Alex Drlica-Wagner, Erik J. Tollerud, Amandine Doliva-Dolinsky, David J. Sand, Clara E. Martínez-Vázquez, Guy S. Stringfellow, William Cerny, Denija Crnojević, Peter S. Ferguson, Catherine E. Fielder, Astha Chaturvedi, Nitya Kallivayalil, Noelia E. D. Noël, Kathy Vivas, Alistair R. Walker, Monika Adamów, Clecio R. Bom, Julio A. Carballo-Bello, Yumi Choi, Gustavo E. Medina, Mahdieh Navabi, Andrew B. Pace, Alex H. Riley, Joanna D. Sakowska   +26 more
doaj   +1 more source

Simulations of the formation and evolution of isolated dwarf galaxies [PDF]

, 2008
We present new fully self-consistent models of the formation and evolution of isolated dwarf galaxies. We have used the publicly available N-body/SPH code HYDRA, to which we have added a set of star formation criteria, and prescriptions for chemical ...
De Rijcke, S., Dejonghe, H., Valcke, Sander   +2 more
core   +2 more sources

Testing Modified Gravity with Dwarf Spheroidal Galaxies [PDF]

, 2016
The observed velocity dispersion of the classical dwarf spheroidal (dSph) galaxies of the Milky Way (MW) requires the Newtonian stellar mass-to-light ($M_*/L$) ratios in the range of about 10 to more than 100 solar units that are well outside the ...
H. Haghi, Vahid Amiri
semanticscholar   +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

Chemical Properties of Star-Forming Emission Line Galaxies at z=0.1 - 0.5

, 1998
We measure oxygen and nitrogen abundances for 14 star-forming emission line galaxies (ELGs) at 0 ...
Bender R., Davies J. I., Dennis Zaritsky, Edmunds M. G., Henry A. Kobulnicky, Howarth I. D., Hummer D. G., Larson R. B., Lequeux J., Madau P., Mateo M., Pagel B. E. J., Pagel B. E. J., Pagel B. E. J., Pagel B. E. J., Renzini A., Rix H. W., Schneider D. P., Seaton M. J., Telles E., Telles E., Terlevich R., van Zee L.   +22 more
core   +3 more sources