Results 71 to 80 of about 370,839 (289)
3.55 keV X-ray line signal from excited dark matter in radiative neutrino model
Physics Letters B, 2014 We study an exciting dark matter scenario in a radiative neutrino model to explain the X-ray line signal at 3.55 keV recently reported by XMN-Newton X-ray observatory using data of various galaxy clusters and Andromeda galaxy.
Hiroshi Okada, Takashi Toma
doaj +1 more source
50 YEARS OF RESEARCH IN CONTINUUM AT THE UTR-2 RADIO TELESCOPE [PDF]
Radio Physics and Radio Astronomy, 2021 Purpose: The results of research in continuum decameter-wave radio emission of the Galaxy background, ionized hydrogen regions, supernova remnants, extragalactic discrete sources, extended galaxies, galactic clusters, extragalactic background are given ...
M. A. Sidorchuk +7 more
doaj +1 more source
YELLOW SUPERGIANTS IN THE ANDROMEDA GALAXY (M31) [PDF]
The Astrophysical Journal, 2009 Accepted by the Astrophysical ...
Georges Meynet +4 more
openaire +3 more sources
The Dwarf Spheroidal Companions to M31: Variable Stars in Andromeda I and Andromeda III [PDF]
Astron.J. 129 (2005) 2232, 2005 (Abridged) We present the results of variable star searches of the M31 dwarf spheroidal companions Andromeda I and Andromeda III using the Hubble Space Telescope. A total of 100 variable stars were found in Andromeda I, while 56 were found in Andromeda III. One variable found in Andromeda I and another in Andromeda III may be Population II Cepheids. In
arxiv +1 more source
The Least Action Principle And The Spin Of Galaxies In The Local Group [PDF]
, 1993 Using Peebles' least action principle, we determine trajectories for the galaxies in the Local Group and the more massive galaxies in the Local Neighbourhood.
Dunn, A. M., Laflamme, R.
core +2 more sources
The Astrophysical Journal, 2023 We present the lifetime star formation histories (SFHs) for six ultrafaint dwarf (UFD; M _V > − 7.0, $4.9\lt {\mathrm{log}}_{10}({M}_{* }(z=0)/{M}_{\odot })\lt 5.5$ ) satellite galaxies of M31 based on deep color–magnitude diagrams constructed from ...
Alessandro Savino +36 more
doaj +1 more source
AGAPE, an experiment to detect MACHO's in the direction of the Andromeda galaxy [PDF]
, 1994 The status of the Agape experiment to detect Machos in the direction of the andromeda galaxy is presented.Comment: 4 pages, 1 figure in a separate compressed, tarred, uuencoded uufile.
Ansari, R. +14 more
core +3 more sources
Ruling Out ∼100–300 GeV Thermal Relic Annihilating Dark Matter by Radio Observation of the Andromeda Galaxy [PDF]
Astrophysical Journal, 2019 Over the past few years, some studies have claimed that annihilating dark matter with mass ∼10–100 GeV can explain the GeV gamma-ray excess in our Galaxy.
M. Chan, L. Cui, Jun Liu, C. Leung
semanticscholar +1 more source
Black hole hunting in the Andromeda Galaxy [PDF]
AIP Conference Proceedings, 2005 6 Pages, 6 figures. To appear in the conference proceedings of "Interacting Binaries: Accretion, Evolution and Outcomes" (Cefalu, July 4-10 2004)
J. P. Osborne +3 more
openaire +4 more sources
Discovery of 20 UV-emitting SNRs in M31 with UVIT
The Astronomical Journal, 2023 We present the first catalog of supernova remnants (SNRs) in M31 that exhibit diffuse ultraviolet (UV) emission. UV images of M31 were obtained by the Ultraviolet Imaging Telescope (UVIT) on the AstroSat satellite, and the list of SNRs was obtained from ...
Denis Leahy +2 more
doaj +1 more source