Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-10-03
Phys.Rev.D62:123005,2000
Astronomy and Astrophysics
Astrophysics
11 pages, 12 figures. Phys. Rev. D. in press. Low resolution figures included; high resolution version available at http://w
Scientific paper
10.1103/PhysRevD.62.123005
We use high resolution numerical simulations of the formation of cold dark matter halos to simulate the background of decay products from neutralino annihilation, such as gamma-rays or neutrinos. Halos are non-spherical, have steep singular density profiles and contain many thousands of surviving dark matter substructure clumps. This leads to several unique signatures in the gamma-ray background that may be confirmed or rejected by the next generation of gamma-ray experiments. Most importantly, the diffuse background is enhanced by over two orders of magnitude due to annihilation within substructure halos. The largest dark substructures are easily visibly above the background and may account for the unidentified EGRET sources. A deep strip survey of the gamma-ray background would allow the shape of the Galactic halo to be quantified.
Calcaneo-Roldan Carlos
Moore Ben
No associations
LandOfFree
The surface brightness of dark matter: unique signatures of neutralino annihilation in the Galactic halo 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 The surface brightness of dark matter: unique signatures of neutralino annihilation in the Galactic halo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The surface brightness of dark matter: unique signatures of neutralino annihilation in the Galactic halo will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-208109