2012A&A...541A.152B


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.03CET18:48:54

2012A&A...541A.152B - Astronomy and Astrophysics, volume 541A, 152-152 (2012/5-1)

A population of isolated hard X-ray sources near the supernova remnant Kes 69.

BOCCHINO F., BYKOV A.M., CHEN Y., KRASSILCHTCHIKOV A.M., LEVENFISH K.P., MICELI M., PAVLOV G.G., UVAROV Yu.A. and ZHOU X.

Abstract (from CDS):

Recent X-ray observations of the supernova remnant (SNR) IC 443 interacting with molecular clouds detected a new population of hard X-ray sources related to the remnant itself, which has been proposed to be fast ejecta fragments propagating within the dense environment. Encouraged by these studies, we obtained a deep XMM-Newton observation of the SNR Kes 69, which also shows signs of a shock-cloud interaction. We report on the detection of 18 hard X-ray sources in the field of Kes 69, which is a number sognificantly higher than expected for the Galactic source population in the field. The sources are spatially correlated with CO emission from the cloud in the remnant environment. The spectra of 3 of the 18 sources can be described as hard power-laws with photon indices smaller than two plus line emission associated with K-shell transitions. We discuss the two most promising scenarios for the interpretation of the sources, namely fast ejecta fragments (as in IC 443) and cataclysmic variables. While most of the observational evidence is consistent with the former interpretation, we cannot rule out the latter.

Abstract Copyright:

Journal keyword(s): ISM: supernova remnants - X-rays: ISM - ISM: individual objects: Kes 69

Simbad objects: 30

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Number of rows : 30

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 IC 443 SNR 06 18 02.7 +22 39 36           ~ 1112 1
2 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11842 0
3 XGPS-I J183210-100031 X 18 32 10.80 -10 00 31.1           ~ 2 1
4 XMMU J183210.8-100029 X 18 32 10.8 -10 00 29           ~ 1 1
5 XMMU J183215.3-100125 X 18 32 15.3 -10 01 25           ~ 1 0
6 XMMU J183219.6-095843 X 18 32 19.6 -09 58 43           ~ 1 0
7 XMMU J183222.5-095708 X 18 32 22.5 -09 57 08           ~ 1 0
8 XGPS-I J183225-100158 X 18 32 25.19 -10 01 58.7           ~ 2 0
9 XMMU J183225.2-100159 X 18 32 25.2 -10 01 59           ~ 1 1
10 XMMU J183234.3-100434 X 18 32 34.3 -10 04 34           ~ 1 1
11 XGPS-I J183234-100437 X 18 32 34.3279235216 -10 04 35.693035854           ~ 2 1
12 XMMU J183236.4-101146 X 18 32 36.4 -10 11 46           ~ 1 1
13 XGPS-I J183236-101144 * 18 32 36.64 -10 11 44.8       14.01   K1 3 1
14 XMMU J183236.7-095556 X 18 32 36.7 -09 55 56           ~ 1 0
15 SNR G021.8-00.6 SNR 18 32 45 -10 08.0           ~ 114 0
16 XMMU J183247.2-100606 X 18 32 47.2 -10 06 06           ~ 1 0
17 2XMM J183251.4-100106 CV* 18 32 51.65 -10 01 06.7       21.57   ~ 5 2
18 XMMU J183254.0-101259 X 18 32 54.0 -10 12 59           ~ 1 0
19 XMMU J183255.4-095920 X 18 32 55.4 -09 59 20           ~ 1 0
20 XMMU J183257.1-101426 X 18 32 57.1 -10 14 26           ~ 1 1
21 IRAS 18302-1016 IR 18 32 58.0 -10 14 27           ~ 1 1
22 XMMU J183303.8-100928 X 18 33 03.8 -10 09 28           ~ 1 0
23 XMMU J183307.2-100050 X 18 33 07.2 -10 00 50           ~ 1 0
24 XMMU J183308.4-100909 X 18 33 08.4 -10 09 09           ~ 1 0
25 XMMU J183312.4-101349 X 18 33 12.4 -10 13 49           ~ 1 1
26 1XMM J183312.5-101351 X 18 33 12.5 -10 13 52           ~ 1 1
27 XMMU J183331.4-101616 X 18 33 31.4 -10 16 16           ~ 1 0
28 PSR J1833-1034 Psr 18 33 33.612 -10 34 07.69           ~ 399 1
29 V* AE Aqr DQ* 20 40 09.1598509019 -00 52 15.057042857   12.46 10.40   10.191 K3-5IV/V 615 0
30 NAME Galactic Ridge ? ~ ~           ~ 436 1

    Equat.    Gal    SGal    Ecl

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2020.12.03-18:48:54

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