SIMBAD references

2013ApJ...779..117Y - Astrophys. J., 779, 117 (2013/December-3)

Fermi large area telescope detection of a break in the gamma-ray spectrum of the supernova remnant Cassiopeia A.

YUAN Y., FUNK S., JOHANNESSON G., LANDE J., TIBALDO L. and UCHIYAMA Y.

Abstract (from CDS):

We report on observations of the supernova remnant Cassiopeia A in the energy range from 100 MeV to 100 GeV using 44 months of observations from the Large Area Telescope on board the Fermi Gamma-Ray Space Telescope. We perform a detailed spectral analysis of this source and report on a low-energy break in the spectrum at 1.72–0.89+1.35 GeV. By comparing the results with models for the gamma-ray emission, we find that hadronic emission is preferred for the GeV energy range.

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Journal keyword(s): acceleration of particles - gamma rays: general - ISM: supernova remnants - radiation mechanisms: non-thermal - supernovae: individual: Cassiopeia A

Simbad objects: 10

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