Main Image
Volume 312 - 7th International Fermi Symposium (IFS2017) - Session Stellar Sources (galactic and extragalactic)
A search for energy-dependence of the Kes 73/1E 1841-045 morphology in GeV
P.K.H. Yeung
Full text: pdf
Published on: 2017 December 12
Abstract
While the Kes 73/1E 1841-045 system had been confirmed as an extended GeV source, whether its morphology depends on the photon energy or not deserves our further investigation. Adopting data collected by Fermi Large Area Telescope (LAT) again, we look into the extensions of this source in three energy bands individually: 0.3-1 GeV, 1-3 GeV and 3-200 GeV. We find that the 0.3-1 GeV morphology is point-like and is quite different from those in the other two bands, although we cannot robustly reject a unified morphology for the whole LAT band.
DOI: https://doi.org/10.22323/1.312.0093
Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.