A Caltech Library Service

Dark matter subhalos in the Fermi first source catalog

Buckley, Matthew R. and Hooper, Dan (2010) Dark matter subhalos in the Fermi first source catalog. Physical Review D, 82 (6). Art. No. 063501. ISSN 2470-0010. doi:10.1103/PhysRevD.82.063501.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


The Milky Way’s dark matter halo is thought to contain large numbers of smaller subhalos. These objects can contain very high densities of dark matter and produce potentially observable fluxes of gamma rays. In this article, we study the gamma ray sources in the Fermi Gamma Ray Space Telescope’s recently published First Source Catalog and attempt to determine whether this catalog might contain a population of dark matter subhalos. We find that, while as many as approximately 20–60 of the catalog’s unidentified sources could plausibly be dark matter subhalos, such a population cannot be clearly identified as such at this time. From the properties of the sources in the First Source Catalog, we derive limits on the dark matter’s annihilation cross section that are comparably stringent to those derived from recent observations of dwarf spheroidal galaxies.

Item Type:Article
Related URLs:
Additional Information:© 2010 The American Physical Society. Received 16 April 2010; published 1 September 2010. M. B. is supported by the US Department of Energy, under Grant No. DE-FG03-92-ER40701. D. H. is supported by the US Department of Energy, including Grant No. DE-FG02-95ER40896, and by NASA Grant No. NAG5-10842.
Group:Caltech Theory
Funding AgencyGrant Number
US Department of EnergyDE-FG03-92-ER40701
US Department of EnergyDE-FG02-95ER40896
Issue or Number:6
Classification Code:PACS: 95.35.+d
Record Number:CaltechAUTHORS:20100920-090525230
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:20031
Deposited By: Tony Diaz
Deposited On:20 Sep 2010 16:48
Last Modified:08 Nov 2021 23:56

Repository Staff Only: item control page