Dr
Nicolás BERNAL
(CFTP - IST)
26/07/2010 14:00
Dark Matter Indirect Searches
Talk
We study the capabilities of the FERMI satellite for identifying particle dark matter properties with gamma-ray observations from the Galactic Center. For the potential dark matter signal, besides the prompt gamma-ray flux
produced in dark matter annihilations, we also take into account the flux produced by inverse Compton scattering of the electrons/positrons generated in dark matter...
M.
Tim Linden
(UC - Santa Cruz)
26/07/2010 14:20
Dark Matter Indirect Searches
Talk
There is currently a significant effort to observe indirect evidence of dark matter annihilation in our galaxy. One interesting finding was an unexpected synchrotron haze (the "WMAP haze") with a similar intensity and morphology to those predicted by dark matter models. This might also be connected to another recent puzzle in cosmic ray physics: the excess of high energy positrons reported by...
M.
kfir blum
(weizmann institute of science)
26/07/2010 14:40
Dark Matter Indirect Searches
Talk
We present a critical analysis of the observational constraints on, and of the theoretical modeling of, aspects of cosmic ray (CR) generation and propagation in the Galaxy, which are relevant for the interpretation of recent positron and anti-proton measurements. We give simple, analytic, model independent expressions for the secondary antiproton flux, and an upper limit for the secondary...
Dr
William GILLARD
(KTH ; OKC)
26/07/2010 15:00
Dark Matter Indirect Searches
Talk
The PAMELA apparatus was launched into space on June 15, 2006. The experiment is devoted to the precise and extensive measurements of cosmic rays in space, with particular focus on antiparticle from the cosmic radiation within an energy ranges from 100 MeV to 200 GeV. Since July 2006 measurements of antiprotons and positrons are being performed to search for exotic sources, such as a signatur...
Mlle
Tongyan Lin
(Harvard University)
26/07/2010 15:20
Talk
Recent cosmic ray, gamma ray, and microwave signals observed by Fermi, PAMELA, and WMAP indicate an unexpected primary source of e+e- at 10-1000 GeV. We fit these data to "standard backgrounds" plus a new source, assumed to be a separable function of position and energy. For the spatial part, we consider three cases: annihilating dark matter, decaying dark matter, and pulsars. In each case, we...
David Tran
(Technical University of Munich)
26/07/2010 15:40
Dark Matter Indirect Searches
Talk
We investigate the prospects of present and future neutrino observatories to constrain the lifetime of unstable dark matter in various decay modes at the level relevant to the observed cosmic-ray lepton anomalies. We also discuss the use of large-scale anisotropies in the diffuse gamma-ray flux as an important test of dark matter interpretations of the aforementioned anomalies.