Results 41 to 50 of about 35,030 (307)
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
Young Globular Clusters and Dwarf Spheroidals [PDF]
, 1999 Most of the globular clusters in the main body of the Galactic halo were formed almost simultaneously. However, globular cluster formation in dwarf spheroidal galaxies appears to have extended over a significant fraction of a Hubble time.
Ambartsumian V. A. +10 more
core +2 more sources
Effective J -factors for Milky Way dwarf spheroidal galaxies with velocity-dependent annihilation [PDF]
, 2019 We calculate the effective $J$-factors, which determine the strength of indirect detection signals from dark matter annihilation, for 25 dwarf spheroidal galaxies (dSphs).
K. Boddy +4 more
semanticscholar +1 more source
Discovery prospects of dwarf spheroidal galaxies for indirect dark matter searches [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 We study the prospects for the Large Synoptic Survey Telescope (LSST) to find new dwarf spheroidal galaxies in the Milky Way. Adopting models of Milky-Way halo substructure and phenomenological prescriptions connecting subhalos and satellite galaxies, we
S. Ando +14 more
semanticscholar +1 more source
Dark matter in dwarf spheroidal galaxies and indirect detection: a review [PDF]
Reports on progress in physics. Physical Society, 2018 Indirect dark matter searches targeting dwarf spheroidal galaxies (dSphs) have matured rapidly during the past decade. This has been because of the substantial increase in kinematic data sets from the dSphs, the new dSphs that have been discovered, and ...
L. Strigari
semanticscholar +1 more source
Globular clusters and dwarf spheroidal galaxies [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2008 Abstract Traditionally, globular clusters and dwarf spheroidal galaxies have been distinguished by using one or more of the following criteria: (i) mass, (ii) luminosity, (iii) size, (iv) mass-to-light ratio and (v) spread in metallicity.
openaire +2 more sources
Abundance Analysis of Stars at Large Radius in the Sextans Dwarf Spheroidal Galaxy
The Astrophysical Journal, 2023 We present the stellar parameters and chemical abundances of 30 elements for five stars located at large radii (3.5–10.7 times the half-light radius) in the Sextans dwarf spheroidal galaxy. We selected these stars using proper motions, radial velocities,
Ian U. Roederer +7 more
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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
Looking for axion dark matter in dwarf spheroidal galaxies [PDF]
Physical Review D, 2018 We study the extent to which the decay of cold dark matter axions can be probed with forthcoming radio telescopes such as the Square Kilometer Array (SKA).
A. Caputo, C. P. Garay, S. Witte
semanticscholar +1 more source
EPJ Web of Conferences, 2012 While recent sky surveys have uncovered large numbers of ever fainter Milky Way satellites, their classification as star clusters, low-luminosity galaxies, or tidal overdensities remains often unclear. Likewise, their contributions to the build-up of the
Lépine S., Koch A., Çalışkan Ş.
doaj +1 more source