2016ApJ...816...52H


Query : 2016ApJ...816...52H

2016ApJ...816...52H - Astrophys. J., 816, 52 (2016/January-2)

Multi-wavelength study of HESS J1741-302.

HARE J., RANGELOV B., SONBAS E., KARGALTSEV O. and VOLKOV I.

Abstract (from CDS):

We present the results of two Chandra X-ray Observatory (CXO) observations of TeV γ-ray source HESS J1741-302. We investigate whether there is any connection between HESS J1741-302 and the sources seen at lower energies. One of the brightest X-ray sources in the HESS J1741-302 field, CXOU J174112.1-302908, appears to be associated with a low-mass star (possibly representing a quiescent low-mass X-ray binary or cataclysmic variable (CV)), hence, it is unlikely to be a source of TeV γ-rays. In the same field we have potentially detected X-rays from WR 98a, which is likely to be a colliding wind binary with massive stars. No TeV emission has been reported so far from such systems although predictions have been made. Finally, we found that the previously reported Suzaku source, Suzaku J1740.5-3014 (which is not covered by the CXO observations), appears to be a hard X-ray source detected by INTERGAL ISGRI, which supports the magnetized CV classification but makes its association with the TeV emission unlikely. The young pulsar PSR B1737-30, so far undetected in X-rays and projected on the sky near the CV, may be the contributor of relativistic particles responsible for the TeV emission.

Abstract Copyright: ∼

Journal keyword(s): gamma-rays: general - ISM: individual: HESS J1741-302 - X-rays: general - X-rays: individual: (Suzaku J1740.5-3014, Suzaku J1741.4-3006)

Simbad objects: 28

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Number of rows : 28
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 V* V381 Nor HXB 15 50 58.6637920704 -56 28 35.258385000           K3III 1254 0
2 PSR J1739-3023 Psr 17 39 39.85 -30 23 11.2           ~ 54 0
3 [SKM2002] 16 X 17 40 28.6 -30 13 18           ~ 5 0
4 PSR B1737-30.2 Psr 17 40 33.98000 -30 15 22.0000           ~ 236 0
5 CXOU J174045.8-300654 X 17 40 45.85 -30 06 54.3           ~ 1 0
6 CXOU J174047.8-300916 X 17 40 47.84 -30 09 16.0   15.14   13.54 12.6 ~ 1 0
7 CXOU J174052.7-302737 X 17 40 52.73 -30 27 37.7           ~ 1 0
8 CXOU J174054.4-301933 X 17 40 54.43 -30 19 33.4   12.64   12.06 11.86 ~ 1 0
9 CXOU J174102.7-302525 X 17 41 02.77 -30 25 25.9           ~ 1 0
10 PSR J1741-3016 Psr 17 41 07.04 -30 16 31.0           ~ 25 0
11 CXOU J174112.1-302908 X 17 41 12.13 -30 29 08.4       17.47 14.11 ~ 1 0
12 WR 98a WR* 17 41 13.0411858104 -30 32 30.409373688   18.40   15.20 13.82 WC8/9 112 1
13 CXOU J174115.2-302434 EB* 17 41 15.2506234063 -30 24 34.712251932   16.04   14.34 13.67 ~ 2 0
14 HESS J1741-302 gam 17 41 15.79827 -30 22 37.2040           ~ 31 0
15 CXOU J174116.6-300315 X 17 41 16.66 -30 03 15.1       19.4 16.68 ~ 1 0
16 UCAC4 300-137613 SB* 17 41 18.1934342861 -30 07 25.881135552   13.768 13.030 12.859 11.81 ~ 2 0
17 CXOU J174119.6-300745 X 17 41 19.62 -30 07 45.1           ~ 1 0
18 CXOU J174123.9-300528 X 17 41 23.95 -30 05 28.2           ~ 1 0
19 Suzaku J1741-3006 X 17 41.4 -30 06           ~ 1 0
20 CXOU J174125.3-302853 X 17 41 25.30 -30 28 53.8           ~ 1 0
21 CXOU J174126.6-300525 X 17 41 26.61 -30 05 25.5           ~ 1 0
22 CXOU J174128.0-300647 X 17 41 28.00 -30 06 47.7           ~ 1 0
23 CXOU J174128.8-300912 X 17 41 28.83 -30 09 12.5           ~ 1 0
24 CXOU J174133.0-300453 X 17 41 33.04 -30 04 53.2           ~ 1 0
25 [B61] 2 s*b 17 41 35.4358256400 -30 06 38.782127520   18.0 15.00 14.23 10.30 LBV_B[e]: 46 0
26 CXOU J174146.1-301026 X 17 41 46.16 -30 10 26.3           ~ 1 0
27 CXOU J174148.1-300039 X 17 41 48.18 -30 00 39.3           ~ 1 0
28 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0

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