Results 141 to 150 of about 370,839 (289)
The satellite distribution of M31
, 2005 (Abridged) The spatial distribution of the Galactic satellite system plays an important role in Galactic dynamics and cosmology, where its successful reproduction is a key test of simulations of galaxy halo formation.
Irwin, Mike, McConnachie, Alan
core +2 more sources
Stellar kinematics using a third integral of motion: method and application on the Andromeda galaxy [PDF]
, 2016 We probe the feasibility of describing the structure of a multicomponent axisymmetric galaxy with a dynamical model based on the Jeans equations while taking into account a third integral of motion.
R. Kipper +4 more
semanticscholar +1 more source
VERITAS Observations of M31 (the Andromeda Galaxy) [PDF]
Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015), 2016 Diffuse gamma rays are tracers of cosmic rays, providing information on their origin, interaction and diffusion through a galaxy. M 31 (the Andromeda Galaxy) is the closest spiral galaxy to the Milky Way (d = 780 kpc) and is very well studied at all wavelengths. Thus it is a prime target for the study of diffuse gamma-ray emission. The very-high-energy
openaire +3 more sources
Andromeda's asymmetric satellite system as a challenge to cold dark matter cosmology [PDF]
The Andromeda galaxy is surrounded by a strikingly asymmetrical distribution of satellite dwarf galaxies aligned towards the Milky Way. The standard model of cosmology predicts that most satellite galaxy systems are near-isotropic, and dwarf associations observed in the local Universe are only weakly asymmetric.
arxiv +1 more source
Gamma-Rays from Dark Matter Mini-Spikes in M31
, 2007 The existence of a population of wandering Intermediate Mass Black Holes (IMBHs) is a generic prediction of scenarios that seek to explain the formation of Supermassive Black Holes in terms of growth from massive seeds.
Gianfranco Bertone +3 more
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Globular Clusters In The Andromeda Galaxy
, 2001 Chapters 2, 3 and 4 were published before the thesis was submitted. Chapter 5 was published as two papers, after the thesis was submitted.
openaire +2 more sources
Fermi bubbles around the M31 galaxy
EPJ Web of Conferences, 2016 We have searched for an extended high-energy gamma-ray emission around the nearby giant spiral Andromeda galaxy M31 using almost 7 years of Fermi LAT data at energies above 300 MeV.
Pshirkov Maxim +2 more
doaj +1 more source
Spiral arms and disc stability in the Andromeda galaxy [PDF]
, 2017 Aims: Density waves are often considered as the triggering mechanism of star formation in spiral galaxies. Our aim is to study relations between different star formation tracers (stellar UV and near-IR radiation and emission from HI, CO and cold dust) in
P. Tenjes +8 more
semanticscholar +1 more source
AstroSat UVIT Survey of M31: New Compact Source Catalog
The Astrophysical Journal Supplement SeriesAn ultraviolet survey of M31 was carried out during 2017–2023 with the UltraViolet Imaging Telescope (UVIT) instrument on board the AstroSat Observatory. Here we present far- and near-ultraviolet (FUV and NUV) observations from the M31 UVIT survey, which
Denis Leahy +3 more
doaj +1 more source
Ongoing Galactic Accretion: Simulations and Observations of Condensed Gas in Hot Halos
, 2007 Ongoing accretion onto galactic disks has been recently theorized to progress via the unstable cooling of the baryonic halo into condensed clouds. These clouds have been identified as analogous to the High-Velocity Clouds (HVCs) observed in HI in our ...
Braun R. +7 more
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