2008A&A...485..777T


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST23:08:05

2008A&A...485..777T - Astronomy and Astrophysics, volume 485, 777-785 (2008/7-3)

XMM-Newton observations of the supernova remnant IC 443. II. Evidence of stellar ejecta in the inner regions.

TROJA E., BOCCHINO F., MICELI M. and REALE F.

Abstract (from CDS):

We investigate the spatial distribution of the physical and chemical properties of the hot X-ray emitting plasma of the supernova remnant IC 443, to derive important constraints on its ionization stage, on the progenitor supernova explosion, on the age of the remnant, and its physical association with a close pulsar wind nebula. We present XMM-Newton images of IC 443, a median photon energy map, silicon and sulfur equivalent width maps, and a spatially resolved spectral analysis of a set of homogeneous regions. The hard X-ray thermal emission (1.4-5.0keV) of IC 443 displays a centrally-peaked morphology, its brightness peaks being associated with hot (kT>1keV) X-ray emitting plasma. A ring-shaped structure, characterized by high values of equivalent widths and median photon energy, encloses the PWN. Its hard X-ray emission is spectrally characterized by a collisional ionization equilibrium model, and strong emission lines of Mg, Si, and S, requiring oversolar metal abundances. Dynamically, the location of the ejecta ring suggests an SNR age of ∼4000yr. The presence of overionized plasma in the inner regions of IC 443, addressed in previous works, is much less evident in our observations.

Abstract Copyright:

Journal keyword(s): ISM: supernova remnants - ISM: individual objects: IC 443 - pulsars: individual: CXOU J061705.3+222127 - X-rays: ISM

Simbad objects: 15

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Number of rows : 15

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 SNR B0103-72.6 SNR 01 05 05.6 -72 23 20           ~ 74 1
2 SNR B0505-67.9 SNR 05 05 42.0 -67 52 29           ~ 124 0
3 SNR B0525-66.0 SNR 05 25 27.1 -65 59 11           ~ 92 1
4 SNR J052559-660453 SNR 05 26 00.4 -66 05 02     12.71     ~ 407 2
5 2XMM J061705.2+222129 XB* 06 17 05.26 +22 21 29.4           ~ 43 1
6 SAX J0618.0+2227 X 06 18 02.7 +22 27 28           ~ 12 0
7 IC 443 SNR 06 18 02.7 +22 39 36           ~ 1101 1
8 PSR J0821-4300 Psr 08 21 58.2 -43 00 22           ~ 113 2
9 PSR J1119-6127 Psr 11 19 14.30 -61 27 49.5           ~ 325 1
10 PSR J1210-5226 Psr 12 10 00.88 -52 26 28.4           ~ 202 1
11 PSR J1357-6429 Psr 13 57 02.525 -64 29 29.89           ~ 118 1
12 W 49b SNR 19 11 09.000 +09 06 24.00           ~ 394 1
13 SNR G082.2+05.3 SNR 20 19.0 +45 30           ~ 86 0
14 NAME Cas A SNR 23 23 24.000 +58 48 54.00           ~ 2414 1
15 CTB 1 SNR 23 59 13 +62 26.2           ~ 141 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-23:08:05

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