NDLI: Search for dark matter satellites using the fermi-lat

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Search for dark matter satellites using the fermi-lat

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bonamente, E. Casandjian, J. M. Blandford, R. D. Buehler, R. Bottacini, E. Barbiellini, G. Bloom, E. D. Caliandro, G. A. Brandt, T. J. Borgland, A. W. Bellazzini, R. McEnery, J. E. Albert, A. Baldini, L. Brigida, M. Troja, E. Bechtol, K. Ackermann, M. Ballet, J. Bregeon, J. Caraveo, P. A. Burnett, T. H. Cameron, R. A. Bastieri, D. Bruel, P.
Copyright Year	2012
Description	Numerical simulations based on the ACDM model of cosmology predict a large number of as yet unobserved Galactic dark matter satellites. We report the results of a Large Area Telescope (LAT) search for these satellites via the gamma-ray emission expected from the annihilation of weakly interacting massive particle (WIMP) dark matter. Some dark matter satellites are expected to have hard gamma-ray spectra, finite angular extents, and a lack of counterparts at other wavelengths. We sought to identify LAT sources with these characteristics, focusing on gamma-ray spectra consistent with WIMP annihilation through the bb(sup raised bar) channel. We found no viable dark matter satellite candidates using one year of data, and we present a framework for interpreting this result in the context of numerical simulations to constrain the velocity-averaged annihilation cross section for a conventional 100 Ge V WIMP annihilating through the bb(sup raised bar) channel.
File Size	1414709
Page Count	29
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20120009480
Archival Resource Key	ark:/13960/t3nw4fx3x
Language	English
Publisher Date	2012-01-01
Access Restriction	Open
Subject Keyword	Astrophysics Gamma Ray Spectra Mass Galactic Halos Particle Theory Annihilation Reactions Dark Matter Simulation Cosmology Mathematical Models Detection Many Body Problem Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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