2001A&A...366.1047C

Query : 2001A&A...366.1047C

2001A&A...366.1047C - Astronomy and Astrophysics, volume 3661047-1052 (2001/2-2)

Detection of a new, low-brightness supernova remnant possibly associated with EGRET sources.

COMBI J.A., ROMERO G.E., BENAGLIA P. and JONAS J.L.

Abstract (from CDS):

We report on the discovery of a shell-type supernova remnant in the southern sky. It is a large (∼8°x8°), low-brightness source with a nonthermal radio spectrum, which requires background filtering to isolate it from the diffuse background emission of the Galaxy. Three 3EG γ-ray sources are spatially correlated with the radio structure. We have made 21-cm line observations of the region and found that two of these sources are coincident with HI clouds. We propose that the γ-ray emission is the result of hadronic interactions between high-energy protons locally accelerated at the remnant shock front and atomic nuclei in the ambient clouds.

Abstract Copyright: ∼

Journal keyword(s): ISM: supernova remnants - radio continuum: ISM - radiation mechanisms: nonthermal - gamma rays: observations

Nomenclature: [CRB2001] CN (Nos C1-C2).

CDS comments: The new SNR is SNR 006.5-12.0

Simbad objects: 9

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Number of rows : 9
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 NAME Vela Jr SN SNR 08 52.0 -46 20           ~ 507 2
2 2EG J1833-2754 gam 18 34 59.5 -28 19 01           ~ 18 0
3 PKS 1837-341 Rad 18 40 26.8 -34 07 01           ~ 1 0
4 NVSS J184445-324641 BLL 18 44 45.6065674374 -32 46 41.132706501           ~ 29 0
5 SNR G006.5-12.0 SNR 18 48 -28.8           ~ 3 1
6 2EG J1850-2638 Bz? 18 48 36.9 -27 11 31           ~ 25 0
7 PKS 1848-338 Rad 18 51 57.1 -33 45 22           ~ 1 0
8 PKS 1853-303 rG 18 57 10.659 -30 19 40.69           ~ 11 1
9 NAME Vela Field reg ~ ~           ~ 200 0

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