2005A&A...431L...9C


C.D.S. - SIMBAD4 rel 1.7 - 2020.05.29CEST03:57:45

2005A&A...431L...9C - Astronomy and Astrophysics, volume 431, L9-12 (2005/2-4)

G337.2+0.1: A new X-ray supernova remnant?

COMBI J.A., BENAGLIA P., ROMERO G.E. and SUGIZAKI M.

Abstract (from CDS):

We present evidence supporting a SNR origin for the radio source G337.2+0.1, which was discovered along the line of sight to the Norma spiral arm in the MOST 843-MHz radio survey. The radio source is spatially superposed to the unidentified ASCA source AX J1635.9-4719. An analysis of this latter source reveals that its X-ray spectrum, extended nature, and non-variable flux are consistent with what is expected for a SNR. In addition, we have used HI-line observations of the region to look for any effect of the presumed remnant on the ISM. We have found a well-defined minimum centered at the position of the radio source in the velocity range of ~-25 to -19km/s. This feature appears as a sharp absorption dip in the spectrum that might be produced when the continuum emission from the SNR candidate is absorbed by foreground gas. Hence we have used it to constrain the distance to the source, which seems to be a young (age ∼ a few 103yr) and distant (d∼14kpc) SNR. G337.2+0.1 and AX J1635.9-4719 would be the radio/X-ray manifestations of this remnant.

Abstract Copyright:

Journal keyword(s): X-ray: individuals: AX J1635.9-4719 - radio continuum: ISM - ISM: supernova remnants - ISM: cosmic rays - X-rays: ISM - radiative mechanism: non-thermal

Status at CDS:  

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 - 2020
#notes
1 SNR G156.2+05.7 SNR 04 58 51.300 +51 50 28.00           ~ 110 1
2 NAME Vela Jr SN SNR 08 52.0 -46 20           ~ 399 2
3 ESO 134-11 HII 14 40 29 -62 38.7           ~ 507 1
4 SNR G315.0-02.3 SNR 14 43 00 -62 30.0           ~ 345 1
5 NAME Lupus SN SNR 15 02 22.1 -42 05 49           ~ 1206 1
6 SNR G337.2+00.1 Rad 16 35 56.0 -47 19 54           ~ 23 1
7 SNR G338.3-00.0 Rad 16 40 30.0 -46 33 00           ~ 129 2
8 SNR G347.3-00.5 SNR 17 12 27 -39 41.2           ~ 603 1
9 NAME Cas A SNR 23 23 24.000 +58 48 54.00           ~ 2398 1

    Equat.    Gal    SGal    Ecl

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2020.05.29-03:57:45

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