Gamma-ray lines in the Fermi-LAT data?
High Energy Astrophysical Phenomena
2013-03-08 v1 High Energy Physics - Phenomenology
Abstract
Gamma-ray lines are traditional smoking gun signatures for dark matter annihilation in the Universe. In regions optimized for large signal-to-noise ratio, we identified a signal candidate for a gamma-ray line at energies around 130 GeV with a post-trials significance of 3.2\sigma. Spectral and spatial properties are not inconsistent with a dark matter signal. One year has passed since the initial papers, and I give here a brief summary and an update on the status of the 130 GeV feature in the un-reprocessed P7 gamma-ray data of the Fermi-LAT.
Cite
@article{arxiv.1303.1798,
title = {Gamma-ray lines in the Fermi-LAT data?},
author = {Christoph Weniger},
journal= {arXiv preprint arXiv:1303.1798},
year = {2013}
}
Comments
4 pages, 2 figures, 2012 Fermi Symposium proceedings - eConf C121028