IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
artículos
Título:
Observations of the Young Supernova Remnant RX J1713.7-3946 with the Fermi Large Area Telescope
Autor/es:
THE FERMI-LAT COLLABORATION; CILLIS, ANALIA N.
Revista:
ASTROPHYSICAL JOURNAL
Editorial:
IOP PUBLISHING LTD
Referencias:
Lugar: Philadelphia; Año: 2011 vol. 734 p. 28 - 36
ISSN:
0004-637X
Resumen:
We present observations of the young supernova remnant (SNR) RX
J1713.7-3946 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 0fdg55 ± 0fdg04 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 RX J1713.7-3946. 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.