2014A&A...567A..74T


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.08CEST04:18:52

2014A&A...567A..74T - Astronomy and Astrophysics, volume 567A, 74-74 (2014/7-1)

XMM-Newton and Chandra X-ray follow-up observations of the VHE gamma-ray source HESS J1507-622.

TIBOLLA O., KAUFMANN S. and KOSACK K.

Abstract (from CDS):

The discovery of the unique source HESS J1507-622 in the very high energy (VHE) range (100 GeV-100 TeV) opened new possibilities to study the parent population of ultra-relativistic particles found in astrophysical sources and underlined the possibility of new scenarios/mechanisms crucial for understanding the underlying astrophysical processes in nonthermal sources. The follow-up X-ray (0.2-10keV) observations on HESS J1507-622 are reported, and possibilities regarding the nature of the VHE source and that of the newly discovered X-ray sources are investigated. We obtained observations with the X-ray satellites XMM-Newton and Chandra. Background corrections were applied to the data to search for extended diffuse emission. Since HESS J1507-622 covers a large part of the field of view of these instruments, blank-sky background fields were used. The discovery of several new X-ray sources and a new, faint, extended X-ray source with a flux of ∼ 6x10–14erg/cm2/s is reported. Interestingly, a new, variable point-like X-ray source with a flux of ∼8x10–14erg/cm2/s appeared in the 2011 observation, which was not detected in the previous X-ray observations. The X-ray observations revealed a faint, extended X-ray source that may be a possible counterpart for HESS J1507-622. This source could be an X-ray pulsar wind nebula (PWN) remnant of the larger gamma-ray PWN, which is still bright in IC emission. Several interpretations are proposed to explain the newly detected variable X-ray source.

Abstract Copyright:

Journal keyword(s): astroparticle physics - X-rays: individuals: HESS J1507-622 - cosmic rays - Galaxy: general - gamma rays: general

CDS comments: Fig.1 left CN sources not in SIMBAD.

Simbad objects: 29

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Number of rows : 29

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 M 1 SNR 05 34 31.94 +22 00 52.2           ~ 5594 4
2 Wolf 359 Er* 10 56 28.826208 +07 00 52.34400 16.706 15.541 13.507 11.684 9.507 M6Ve 633 0
3 1RXS J150354.7-620408 X 15 03 54.698 -62 04 08.51           ~ 2 0
4 TYC 9024-1615-1 * 15 06 21.4186 -62 11 11.074   11.19 10.61 10.454 9.91 ~ 2 0
5 CXOU J150621.7-621110 X 15 06 21.789 -62 11 10.76           ~ 2 0
6 1RXS J150639.1-615704 X 15 06 39.101 -61 57 04.00           ~ 3 0
7 CXOU J150706.0-621443 X 15 07 06.0 -62 14 44           ~ 3 0
8 TYC 9024-1705-1 * 15 07 08.8061701102 -62 16 40.699513834   11.98 11.66 11.23 10.87 ~ 3 0
9 CXOU J150708.8-621643 X 15 07 08.824 -62 16 43.99           ~ 3 0
10 XMMU J150728.0-622611 X 15 07 28.080 -62 26 11.76           ~ 1 0
11 GSC2.3 S7QP002061 * 15 07 28.369 -62 26 09.95   19.65 17.46 16.56 15.67 ~ 1 0
12 HESS J1507-622 gam 15 07 30 -62 25.0           ~ 33 0
13 CXOU J150756.0-622238 X 15 07 56.018 -62 22 38.70           ~ 3 0
14 GSC2.3 S7QP035739 * 15 07 56.844 -62 22 41.03   19.97   17.07 16.38 ~ 2 0
15 XMMU J150802.8-621756 X 15 08 02.880 -62 17 56.76           ~ 1 0
16 GSC2.3 S7QP084521 * 15 08 03.059 -62 17 57.57         15.90 ~ 1 0
17 XMMU J150832.1-620744 X 15 08 32.160 -62 07 44.40           ~ 1 0
18 GSC2.3 S7QP007261 * 15 08 32.945 -62 07 40.15     17.36 16.72 15.95 ~ 1 0
19 GSC2.3 S7QP048279 * 15 08 35.588 -62 10 18.58       17.52 15.63 ~ 1 0
20 XMMU J150835.7-621021 X 15 08 35.760 -62 10 21.00           ~ 2 0
21 GSC2.3 S7QP006140 * 15 08 36.537 -62 10 16.87     16.28 15.19 14.11 ~ 1 0
22 GSC2.3 S7QP006099 * 15 08 36.905 -62 10 23.31     16.79 16.04 15.45 ~ 1 0
23 1RXS J150841.2-621006 X 15 08 41.203 -62 10 06.49           ~ 2 1
24 CXOU J150850.6-621018 Rad 15 08 50.19 -62 10 25.5           ~ 4 1
25 XMMU J150916.3-621658 X 15 09 16.320 -62 16 58.80           ~ 1 0
26 GSC2.3 S7QP084895 * 15 09 16.629 -62 16 49.82         15.42 ~ 1 0
27 PKS 1613-50 Rad 16 17 33.000 -51 02 00.00           ~ 453 3
28 HESS J1708-410 gam 17 08 24.0 -41 05 24           ~ 17 0
29 CXOU J184454.6-025653 X 18 44 54.6 -02 56 53           ~ 2 0

    Equat.    Gal    SGal    Ecl

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2020.07.08-04:18:52

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