2013A&A...552A..45S


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.11CET00:51:04

2013A&A...552A..45S - Astronomy and Astrophysics, volume 552A, 45-45 (2013/4-1)

Chandra observation of the Galactic supernova remnant CTB 109 (G109.1-1.0).

SASAKI M., PLUCINSKY P.P., GAETZ T.J. and BOCCHINO F.

Abstract (from CDS):

We study the X-ray emission of the Galactic supernova remnant (SNR) CTB 109 (G109.1-1.0), which is well-known for its enigmatic half-shell morphology both in radio and in X-rays and is associated with the anomalous X-ray pulsar (AXP) 1E2259+586. We want to understand the origin of the X-ray bright feature inside the SNR called the Lobe and the details of the interaction of the SNR shock wave with the ambient interstellar medium (ISM). The Lobe and the northeastern part of the SNR were observed with Chandra ACIS-I. We analysed the spectrum of the X-ray emission by dividing the entire observed emission into small regions. The X-ray emission is best reproduced with one-component or two-component non-equilibrium ionisation models depending on the position. In the two-component model, one emission component represents the shocked ISM and the other the shocked ejecta. We detect enhanced element abundances, in particular for Si and Fe, in and around the Lobe. There is one particular region next to the Lobe with a high Si abundance of 3.3 (2.6-4.0) times the solar value. This is the first, unequivocal detection of ejecta in CTB 109. The new Chandra data confirm that the Lobe was created by the interaction of the SNR shock and the supernova ejecta with a dense and inhomogeneous medium in the environment of SNR CTB 109. The newly calculated age of the SNR is t≃1.4x104yr.

Abstract Copyright:

Journal keyword(s): shock waves - ISM: supernova remnants - X-rays: ISM - X-rays: individuals: SNR CTB 109

Simbad objects: 22

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Number of rows : 22

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 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14380 1
2 SNR B0525-66.0 SNR 05 25 27.1 -65 59 11           ~ 88 1
3 SNR J052559-660453 SNR 05 26 00.4 -66 05 02     12.71     ~ 400 2
4 PSR B0525-66 Psr 05 26 00.7 -66 04 35           ~ 510 1
5 SNR J053400-695508 SNR 05 33 59.00 -69 55 00.0           SNIa 62 0
6 SNR B0548-70.4 SNR 05 47 50.00 -70 24 54.0           SNIa 75 0
7 NAME Vela XYZ Rad 08 34.0 -45 50           ~ 1090 2
8 PSR J1119-6127 Psr 11 19 14.30 -61 27 49.5           ~ 308 1
9 SNR G292.2-00.5 SNR 11 19.3 -61 28           ~ 76 1
10 PSR J1550-5418 Psr 15 50 54.18 -54 18 23.9           ~ 317 1
11 SNR G327.2-00.1 SNR 15 50 55 -54 18.0           ~ 58 1
12 CTB 33 Rad 16 35 06.9 -47 47 25           ~ 104 1
13 GRB 980618A gB 16 35 52 -47 35.2           ~ 235 0
14 SNR G349.7+00.2 SNR 17 18 10.160 -37 18 53.80           ~ 159 0
15 PSR J1841-0456 Psr 18 41 19.29 -04 56 11.4           ~ 226 1
16 4C -04.71 Rad 18 41 19.8 -04 56 06           ~ 295 3
17 PSR J1846-0258 Psr 18 46 24.94 -02 58 30.1           ~ 285 2
18 SNR G029.7-00.3 SNR 18 46 25.5 -02 59 14           ~ 280 2
19 GBS 1900+14 gB 19 07 13 +09 19.6           ~ 769 0
20 SNR G042.8+00.6 SNR 19 07 41.80 +09 07 17.0           ~ 115 1
21 2E 4673 HXB 23 01 08.14 +58 52 44.5           ~ 577 1
22 SNR G109.1-01.0 SNR 23 01 35 +58 53.0           ~ 306 0

    Equat.    Gal    SGal    Ecl

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2019.12.11-00:51:04

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