PoS - Proceedings of Science
Volume 312 - 7th International Fermi Symposium (IFS2017) - Session Dark Matter
Fermi -LAT Limit on Individual Primordial Black Holes
D. Malyshev,* C. Johnson, S. Ritz, S. Funk
*corresponding author
Full text: pdf
Supplementary files
Published on: December 12, 2017
Abstract
Primordial black holes (PBH) with masses below approximately $10^{15}$ g are expected to emit gamma rays with energies above a few tens of MeV, which are capable of being detected by the Fermi Large Area Telescope (LAT). Previous searches for PBHs have focused on either short timescale bursts or the contribution of PBHs to the isotropic gamma-ray emission. We show that, in case of individual PBHs, the Fermi LAT is most sensitive to PBHs with temperatures near 16 GeV, which it can detect out to a distance of about 0.03 pc. These PBHs would appear as potentially moving point sources. We develop a new algorithm to detect the proper motion of a gamma-ray PS, and apply it to unassociated PS in the third Fermi-LAT source catalog (3FGL). None of unassociated PS with spectra consistent with PBH evaporation show significant proper motion. The derived 99% confidence limit on PBH evaporation rate in the vicinity of the Earth is similar to the limits obtained with ground-based gamma-ray observatories.
DOI: https://doi.org/10.22323/1.312.0169
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.