2015ApJ...804..124E


Query : 2015ApJ...804..124E

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.

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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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Number of rows : 14
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
2 IC 443 SNR 06 17 00.0000000 +22 34 11.998901           ~ 1314 1
3 NAME MSH 11-61A SNR 10 59 25.36 -61 18 42.6           ~ 187 0
4 SNR G346.6-00.2 SNR 17 10.3 -40 11           ~ 99 0
5 CXOU J171801.0-372617 X 17 18 01.00 -37 26 16.6           ~ 9 0
6 SNR G349.7+00.2 SNR 17 18 10.160 -37 18 53.80           ~ 196 0
7 SNR G359.1-00.5 SNR 17 45 30 -29 57.0           ~ 179 1
8 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
9 SNR G006.4-00.1 SNR 18 00 31.2011719 -23 25 48.001099           ~ 782 1
10 SNR G031.9+00.0 SNR 18 49 16.3 -00 55 01           ~ 368 2
11 SNR G034.6-00.5 SNR 18 56 10.650 +01 13 21.30           ~ 1034 2
12 W 49b SNR 19 11 09.5 +09 06 21           ~ 500 1
13 SNR G049.1-00.1 SNR 19 23 19.300 +14 09 21.00           ~ 309 0
14 NAME Galactic Ridge ? ~ ~           ~ 543 1

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