SIMBAD references

2015ApJ...804..124E - Astrophys. J., 804, 124 (2015/May-2)

Searching for overionized plasma in the gamma-ray-emitting supernova remnant G349.7+0.2.

ERGIN T., SEZER A., SAHA L., MAJUMDAR P., GOK F. and ERCAN E.N.

Abstract (from CDS):

G349.7+0.2 is a supernova remnant (SNR) expanding in a dense medium of molecular clouds and interacting with clumps of molecular material emitting gamma-rays. We analyzed the gamma-ray data of the Large Area Telescope on board the Fermi Gamma-Ray Space Telescope and detected G349.7+0.2 in the energy range of 0.2-300 GeV with a significance of ∼13σ, showing no extended morphology. Modeling of the gamma-ray spectrum revealed that the GeV gamma-ray emission dominantly originates from the decay of neutral pions, where the protons follow a broken power-law distribution with a spectral break at ∼12 GeV. To search for features of radiative recombination continua in the eastern and western regions of the remnant, we analyzed the Suzaku data of G349.7+0.2 and found no evidence for overionized plasma. In this paper, we discuss possible scenarios to explain the hadronic gamma-ray emission in G349.7+0.2 and the mixed morphology nature of this SNR.

Abstract Copyright:

Journal keyword(s): gamma rays: ISM - ISM: clouds - ISM: individual: G349.7+0.2 - ISM: supernova remnants - X-rays: ISM

Simbad objects: 14

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