Radio signal constraints on galactic dark matter annihilation

Enrico Borriello, A. Cuoco, G. Mangano, G. Miele, C. A. Moura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Annihilation of Dark Matter usually produces together with gamma rays comparable amounts of electrons and positrons. The e+e- gyrating in the galactic magnetic field then produce secondary synchrotron radiation which thus provides an indirect mean to constrain the DM signal itself. To this purpose, we calculate the radio emission from the galactic halo as well as from its expected substructures and we then compare it with the measured diffuse radio background. We employ a multi-frequency approach using data in the relevant frequency range 100 MHz-100 GHz, as well as the WMAP Haze data at 23 GHz. The derived constraints are of the order 〈σ A v〉=10-24cm3s-1 for a DM mass mκ=100GeV even though sensibly depending on the astrophysical uncertainties.

Original languageEnglish (US)
Title of host publicationInvisible Universe International Conference
Pages418-425
Number of pages8
Volume1241
DOIs
StatePublished - Aug 23 2010
Externally publishedYes
EventInvisible Universe International Conference - Paris, France
Duration: Jun 29 2009Jul 3 2009

Other

OtherInvisible Universe International Conference
CountryFrance
CityParis
Period6/29/097/3/09

Fingerprint

interstellar magnetic fields
radio signals
haze
galactic halos
radio emission
substructures
positrons
dark matter
astrophysics
synchrotron radiation
frequency ranges
gamma rays
electrons

Keywords

  • Dark Matter Annihilation
  • Radio Signal
  • Synchrotron Radiation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Borriello, E., Cuoco, A., Mangano, G., Miele, G., & Moura, C. A. (2010). Radio signal constraints on galactic dark matter annihilation. In Invisible Universe International Conference (Vol. 1241, pp. 418-425) https://doi.org/10.1063/1.3462665

Radio signal constraints on galactic dark matter annihilation. / Borriello, Enrico; Cuoco, A.; Mangano, G.; Miele, G.; Moura, C. A.

Invisible Universe International Conference. Vol. 1241 2010. p. 418-425.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Borriello, E, Cuoco, A, Mangano, G, Miele, G & Moura, CA 2010, Radio signal constraints on galactic dark matter annihilation. in Invisible Universe International Conference. vol. 1241, pp. 418-425, Invisible Universe International Conference, Paris, France, 6/29/09. https://doi.org/10.1063/1.3462665
Borriello E, Cuoco A, Mangano G, Miele G, Moura CA. Radio signal constraints on galactic dark matter annihilation. In Invisible Universe International Conference. Vol. 1241. 2010. p. 418-425 https://doi.org/10.1063/1.3462665
Borriello, Enrico ; Cuoco, A. ; Mangano, G. ; Miele, G. ; Moura, C. A. / Radio signal constraints on galactic dark matter annihilation. Invisible Universe International Conference. Vol. 1241 2010. pp. 418-425
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