2007ApJ...662..517F

Query : 2007ApJ...662..517F

2007ApJ...662..517F - Astrophys. J., 662, 517-524 (2007/June-2)

XMM-Newton observations reveal the X-ray counterpart of the very high energy gamma-ray source HESS J1640-465.

FUNK S., HINTON J.A., PUHLHOFER G., AHARONIAN F.A., HOFMANN W., REIMER O. and WAGNER S.

Abstract (from CDS):

We present X-ray observations of the as of yet unidentified very high energy (VHE) γ-ray source HESS J1640-465 with the aim of establishing a counterpart of this source in the keV energy range, and identifying the mechanism responsible for the VHE emission. The 21.8 ks XMM-Newton observation of HESS J1640-465 in 2005 September represents a significant improvement in sensitivity and angular resolution over previous ASCA studies in this region. These new data show a hard-spectrum X-ray-emitting object at the centroid of the H.E.S.S. source, within the shell of the radio supernova remnant (SNR) G338.3-0.0. This object is consistent with the position and flux previously measured by both ASCA and Swift XRT, but is now shown to be significantly extended. We argue that this object is very likely the counterpart to HESS J1640-465, and that both objects may represent the pulsar wind nebula of an as of yet undiscovered pulsar associated with G338.3-0.0.

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Journal keyword(s): Gamma Rays: Observations - ISM: individual (3EG J1639-4702) - ISM: individual (AX J1640.7-4632) - ISM: individual (G338.3-0.0) - ISM: individual (HESS J1640-465) - ISM: Supernova Remnants - X-Rays: General

Simbad objects: 24

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Number of rows : 24
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 X Psr 08 33 08.880 -45 11 24.36           ~ 302 1
2 NAME Vela Jr SN SNR 08 52.0 -46 20           ~ 507 2
3 3A 1510-590 Psr 15 13 17.000 -59 04 54.00           ~ 434 3
4 PSR J1637-4721 Psr 16 37 11.4 -47 21 03           ~ 7 0
5 PSR J1637-4642 Psr 16 37 13.77 -46 42 15.0           ~ 40 0
6 SNR G338.1+00.4 SNR 16 38.0 -46 24           ~ 32 0
7 AX J1639.0-4642 HXB 16 39 05.1 -46 42 08           BIV-V 108 1
8 Ass Ara OB 1a As* 16 39.5 -46 46           ~ 18 0
9 MMB G338.287+00.120 Mas 16 40 00.13 -46 27 37.1           ~ 15 0
10 [LBM2006] HESS J1640-465 2 X 16 40 29.20 -46 23 29.0           ~ 2 0
11 SNR G338.3-00.0 SNR 16 40 43.2 -46 31 48           ~ 175 2
12 [LBM2006] HESS J1640-465 1 X 16 40 43.50 -46 31 38.6           ~ 7 0
13 PSR J1640-4648 Psr 16 40 47.62 -46 48 45.0           ~ 5 0
14 MMB G338.432+00.058 Mas 16 40 49.79 -46 23 37.0           ~ 22 0
15 SNR G338.5+00.1 SNR 16 41 09 -46 19.0           ~ 50 0
16 [LBM2006] HESS J1640-465 3 X 16 41 30.50 -46 30 47.8           ~ 2 0
17 4U 1642-45 LXB 16 45 48.1 -45 36 42           ~ 467 1
18 NGC 6204 OpC 16 46 09.1 -47 01 29   8.51 8.2     ~ 139 0
19 2EG J1653-4604 Bz? 16 57 47.5 -45 20 18           ~ 29 1
20 SNR G347.3-00.5 SNR 17 12 27 -39 41.2     12.27     ~ 761 1
21 NAME AGPS 273.4-17.8 SNR 18 13 35.05 -17 49 58.1           ~ 145 2
22 PSR J1826-1256 Psr 18 26 08.570 -12 56 33.53           ~ 152 1
23 PSR B1823-13 Psr 18 26 13.06 -13 34 48.1           ~ 460 1
24 SNR G021.5-00.9 SNR 18 33 33.612 -10 34 07.69           ~ 490 1

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