Abstract
We present observations of the young supernova remnant (SNR) RXJ1713.7-3946 with the Fermi Large Area Telescope (LAT). We clearly detect a source positionally coincident with the SNR. The source is extended with a best-fit extension of 055 ± 004 matching the size of the non-thermal X-ray and TeV gamma-ray emission from the remnant. The positional coincidence and the matching extended emission allow us to identify the LAT source with SNR RXJ1713.7-3946. The spectrum of the source can be described by a very hard power law with a photon index of Γ = 1.5 0.1 that coincides in normalization with the steeper H.E.S.S.-detected gamma-ray spectrum at higher energies. The broadband gamma-ray emission is consistent with a leptonic origin as the dominant mechanism for the gamma-ray emission.
Original language | English |
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Article number | 28 |
Journal | Astrophysical Journal |
Volume | 734 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2011 Jun 10 |
Keywords
- ISM: individual objects (RX J1713.7-3946)
- ISM: supernova remnants
- acceleration of particles
- gamma rays: ISM
- gamma rays: general
- radiation mechanisms: non-thermal
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science