Results 21 to 30 of about 153,252 (195)
Journal of Cosmology and Astroparticle Physics, 2015 Simple models of weakly interacting massive particles (WIMPs) predict dark matter annihilations into pairs of electroweak gauge bosons, Higgses or tops, which through their subsequent cascade decays produce a spectrum of gamma rays. Intriguingly, an excess in gamma rays coming from near the Galactic center has been consistently observed in Fermi data ...
Agrawal, Prateek +3 more
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Symposium - International Astronomical Union, 1984 Infrared studies of the interstellar medium in the central ten parsecs of the Milky Way are reviewed. Far infrared (30 – 150μm) photometry gives the density distribution of the dust: the material is confined chiefly to the plane of the Galaxy, and there is a central cavity of two parsecs radius within which the density is extremely low (Av ≪ 1 ...
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Dark matter at the galactic center [PDF]
Nuclear Physics B - Proceedings Supplements, 2000 3 pages, 3 figures, TAUP99, Paris ...
Gondolo, Paolo, Silk, Joseph
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Kinematics of the Local Spiral Structure Revealed by Young Stars in Gaia DR3
The Astrophysical Journal Supplement Series, 2023 Using young open clusters and O–B2-type stars in Gaia Data Release 3, we investigate the kinematics of the local spiral structure. In general, the young sources in the outer spiral arms may present larger peculiar motions than those in the inner spiral ...
Dejian Liu +6 more
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X-ray Insight into High-Energy Processes in Extreme Galactic Nuclear Environment
Universe, 2022 Nuclear regions of galaxies apparently play a disproportionately large role in regulating their formation and evolution. How this regulation works, however, remains very uncertain.
Q. Daniel Wang
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Massive Stars in the Galactic Center [PDF]
Proceedings of the International Astronomical Union, 2007 AbstractWe present results of two studies aiming at better understanding the properties of massive stars in the Galactic Center. We focus on the youngest and oldest of the three massive clusters harboring this region, namely the Arches and central cluster.
Martins, F. +6 more
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Measuring Fundamental Galactic Parameters with Stellar Tidal Streams and SIM PlanetQuest [PDF]
, 2005 Extended halo tidal streams from disrupting Milky Way satellites offer new opportunities for gauging fundamental Galactic parameters without challenging observations of the Galactic center.
Allyson A. Polak +7 more
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Are Supernovae Responsible for the Gamma Ray Spectrum from the Galactic Center?
Acta Polytechnica CTU Proceedings, 2014 We discuss the supernova remnants distribution as a function of the galactic longitude and compare their positions to that of the detected TeV gamma ray sources. A large fraction of these sources either coincide or a close by known supernova remnants. If
Todor Stanev
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Limits on Supersymmetric Dark Matter From EGRET Observations of the Galactic Center Region [PDF]
, 2002 In most supersymmetic models, neutralino dark matter particles are predicted to accumulate in the Galactic center and annihilate generating, among other products, gamma rays.
A. Balbi +10 more
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Magnetic substructure in the northern Fermi Bubble revealed by polarized WMAP emission
, 2012 We report a correspondence between giant, polarized microwave structures emerging north from the Galactic plane near the Galactic center and a number of GeV gamma-ray features, including the eastern edge of the recently-discovered northern Fermi Bubble ...
Aharonian, Felix A. +4 more
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