Where will supersymmetric dark matter first be seen?

Details Where will supersymmetric dark matter first be seen? Where will supersymmetric dark matter first be seen?

2011-07-11

arxiv.org/abs/1107.1916v2

Mon.Not.Roy.Astron.Soc. 419, 1721 (2012)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages, 3 figure. MNRAS in press. Minor changes to match the accepted version

Scientific paper

10.1111/j.1365-2966.2011.19836.x

If the dark matter consists of supersymmetric particles, Gamma-ray observatories such as the Large Area Telescope aboard the Fermi satellite may detect annihilation radiation from the haloes of galaxies and galaxy clusters. Much recent effort has been devoted to searching for this signal around the Milky Way's dwarf satellites. Using a new suite of high-resolution simulations of galaxy cluster haloes (the Phoenix Project), together with the Aquarius simulations of Milky-Way-like galaxy haloes, we show that higher signal-to-noise and equally clean signals are, in fact, predicted to come from nearby rich galaxy clusters. Most of the cluster emission is produced by small subhaloes with masses less than that of the Sun. The large range of mass scales covered by our two sets of simulations allows us to deduce a physically motivated extrapolation to these small (and unresolved) masses. Since tidal effects destroy subhaloes in the dense inner regions of haloes, most cluster emission is then predicted to come from large radii, implying that the nearest and brightest systems should be much more extended than Fermi's angular resolution limit. The most promising targets for detection are clusters such as Coma and Fornax, but detection algorithms must be tuned to the predicted profile of the emission if they are to maximize the chance of finding this weak signal.

Affiliated with

Also associated with

No associations

Rating

Where will supersymmetric dark matter first be seen? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Where will supersymmetric dark matter first be seen?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Where will supersymmetric dark matter first be seen? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-137129