2009A&A...498..139B


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.25CET15:39:03

2009A&A...498..139B - Astronomy and Astrophysics, volume 498, 139-145 (2009/4-4)

On the metal abundances inside mixed-morphology supernova remnants: the case of IC 443 and G166.0+4.3.

BOCCHINO F., MICELI M. and TROJA E.

Abstract (from CDS):

Recent developments in the study of mixed morphology supernova remnants (MMSNRs) have revealed the presence of metal-rich X-ray emitting plasma inside a fraction of these remnants, a feature not properly addressed by traditional models for these objects. Radial profiles of thermodynamical and chemical parameters are needed for a fruitful comparison of data and model of MMSNRs, but these are available only in a few cases. We analyzed XMM-Newton data of two MMSNRs, namely IC 443 and G166.0+4.3, previously known to have solar metal abundances, and performed a spatially resolved spectral analysis of the X-ray emission. We detected enhanced abundances of Ne, Mg and Si in the hard X-ray bright peak in the north of IC 443, and of sulphur in the outer regions of G166.0+4.3. The metal abundances are not distributed uniformly in both remnants. The evaporating clouds model and the radiative SNR model fail to reproduce consistently all the observational results. We suggest that further deep X-ray observations of MMSNRs may reveal more metal-rich objects. More detailed models including ISM-ejecta mixing are needed to explain the nature of this growing subclass of MMSNRs.

Abstract Copyright:

Journal keyword(s): ISM: supernova remnants - ISM: dust, extinction - X-rays: ISM - X-rays: individual: IC 443 - X-rays: individual: G166.0+4.3 - ISM

Simbad objects: 13

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Number of rows : 13

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 SNR B0103-72.6 SNR 01 05 05.6 -72 23 20           ~ 75 1
2 SNR B0525-66.0 SNR 05 25 27.1 -65 59 11           ~ 92 1
3 SNR G166.0+04.3 SNR 05 26 30.000 +42 56 00.00           ~ 162 0
4 IC 443 SNR 06 18 02.7 +22 39 36     10.11     ~ 1120 1
5 NAME Pup A SNR 08 24 07 -42 59.8           ~ 530 1
6 NAME Vela XYZ Rad 08 34.0 -45 50           ~ 1135 2
7 NAME MSH 11-61A SNR 10 59 25.36 -61 18 42.6           ~ 158 0
8 SNR G327.4+00.4 SNR 15 48 20 -53 49.0           ~ 85 0
9 SNR G006.4-00.1 SNR 18 01 22.7 -23 17 20           ~ 664 1
10 SNR G034.6-00.5 SNR 18 56 10.650 +01 13 21.30           ~ 845 2
11 SNR G089.0+04.7 SNR 20 45.0 +50 35           ~ 199 0
12 NAME Cyg Loop SNR 20 51.0 +30 40           ~ 836 0
13 CTB 1 SNR 23 59 13 +62 26.2           ~ 142 0

    Equat.    Gal    SGal    Ecl

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2021.02.25-15:39:03

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