Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2011-10-31
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
2011 Fermi Symposium proceedings - eConf C110509
Scientific paper
Despite the interest in Dark Matter (DM) searches is currently more focused on underground experiments, a signature of DM annihilation/decay in gamma-rays from the space would constitute a smoking gun for its identification. Here, we present the results of the survey of Segue1 by the MAGIC-I telescope performed in 2008 and 2009. This source is considered by many as the most DM dominated Milky Way satellite galaxy known so far. The nearly 43 hours of data taken constitute the deepest observation ever made on a single dwarf galaxy by Cherenkov telescopes. No significant gamma-ray emission was found above an energy threshold of 100 GeV. Integral upper limits on the gamma-ray flux were calculated assuming various power-law spectra for the possible emission spectrum and for different energy thresholds. We also discuss a novel analysis that fully takes into account the spectral features of the gamma-ray spectrum of specific DM models in a SuperSymmetric scenario.
Doro Michele
for the MAGIC Collaboration
Fornasa Martino
Lombardi Saverio
Nieto Daniel
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