2015ApJ...805...19X

Query : 2015ApJ...805...19X

2015ApJ...805...19X - Astrophys. J., 805, 19 (2015/May-3)

Supernova remnant Kesteven 27: interaction with a neighbor HI cloud viewed by Fermi.

XING Y., WANG Z., ZHANG X. and CHEN Y.

Abstract (from CDS):

We report on the likely detection of γ-ray emission from the supernova remnant (SNR) Kesteven 27 (Kes 27). We analyze 5.7 yr Fermi Large Area Telescope data of the SNR region and find an unresolved source at a position consistent with the radio brightness peak and the X-ray knot of Kes 27, which is located in the eastern region of the SNR and caused by its interaction with a nearby Hi cloud. The source's emission is best fit with a power-law spectrum with a photon index of 2.5±0.1 and a >0.2 GeV luminosity of erg/s assuming a distance of 4.3 kpc, as derived from radio observations of the nearby Hi cloud. Comparing the properties of the source with that of other SNRs that are known to be interacting with nearby high-density clouds, we discuss the origin of the source's emission. The spectral energy distribution of the source can be described by a hadronic model that considers the interaction of energetic protons escaping from the shock front of Kes 27 with a high-density cloud.

Abstract Copyright: ∼

Journal keyword(s): acceleration of particles - gamma rays: ISM - ISM: individual: Kesteven 27 - ISM: supernova remnants

Simbad objects: 16

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Number of rows : 16
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 IC 443 SNR 06 17 00.0000000 +22 34 11.998901           ~ 1237 1
2 AJG 14 BL? 12 09 40 -52 25.0           ~ 287 1
3 PSR J1543-5149 Psr 15 43 44.150 -51 49 54.68           ~ 31 1
4 CXOU J154816.7-534125 AGN 15 48 16.79 -53 41 25.5           ~ 2 0
5 SNR G327.4+00.4 SNR 15 48 20 -53 49.0           ~ 91 0
6 2FGL J1551.3-5333c gam 15 51 39.14 -53 33 30.3           ~ 6 0
7 1FGL J1554.8-5312c BL? 15 54 24.27 -53 14 41.0           ~ 18 0
8 AJG 44 Psr 16 17 33.000 -51 02 00.00           ~ 512 3
9 1FGL J1711.7-3944c BL? 17 12 27 -39 41.2     12.27     ~ 724 1
10 NAME Tornado Nebula SNR 17 40 16.360 -30 58 18.87           ~ 143 0
11 SNR G006.4-00.1 SNR 18 00 31.2011719 -23 25 48.001099           ~ 738 1
12 SNR G023.3-00.3 SNR 18 34 51.80 -08 44 38.2           ~ 218 0
13 SNR G033.6+00.1 SNR 18 52 29.000 +00 38 42.00           ~ 285 1
14 SNR G034.6-00.5 SNR 18 56 10.650 +01 13 21.30           ~ 965 2
15 SNR G049.1-00.1 SNR 19 23 19.300 +14 09 21.00           ~ 283 0
16 3C 461 BL? 23 23 24.000 +58 48 54.00     14.30     ~ 2793 1

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