2014ApJ...785L..27Y


Query : 2014ApJ...785L..27Y

2014ApJ...785L..27Y - Astrophys. J., 785, L27 (2014/April-3)

Discriminating the progenitor type of supernova remnants with iron K-shell emission.

YAMAGUCHI H., BADENES C., PETRE R., NAKANO T., CASTRO D., ENOTO T., HIRAGA J.S., HUGHES J.P., MAEDA Y., NOBUKAWA M., SAFI-HARB S., SLANE P.O., SMITH R.K. and UCHIDA H.

Abstract (from CDS):

Supernova remnants (SNRs) retain crucial information about both their parent explosion and circumstellar material left behind by their progenitor. However, the complexity of the interaction between supernova ejecta and ambient medium often blurs this information, and it is not uncommon for the basic progenitor type (Ia or core-collapse) of well-studied remnants to remain uncertain. Here we present a powerful new observational diagnostic to discriminate between progenitor types and constrain the ambient medium density of SNRs using solely Fe K-shell X-ray emission. We analyze all extant Suzaku observations of SNRs and detect Fe Kα emission from 23 young or middle-aged remnants, including five first detections (IC 443, G292.0+1.8, G337.2-0.7, N49, and N63A). The Fe Kα centroids clearly separate progenitor types, with the Fe-rich ejecta in Type Ia remnants being significantly less ionized than in core-collapse SNRs. Within each progenitor group, the Fe Kα luminosity and centroid are well correlated, with more luminous objects having more highly ionized Fe. Our results indicate that there is a strong connection between explosion type and ambient medium density, and suggest that Type Ia supernova progenitors do not substantially modify their surroundings at radii of up to several parsecs. We also detect a K-shell radiative recombination continuum of Fe in W49B and IC 443, implying a strong circumstellar interaction in the early evolutionary phases of these core-collapse remnants.

Abstract Copyright:

Journal keyword(s): ISM: abundances - ISM: supernova remnants - X-rays: ISM

Simbad objects: 35

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Number of rows : 35
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 SN 1572A SN* 00 25 21.5 +64 08 27           B8 1155 1
2 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12095 1
3 SNR G156.2+05.7 SNR 04 58 51.300 +51 50 28.00           ~ 125 1
4 SNR B0505-67.9 SNR 05 05 42.0 -67 52 29           ~ 137 0
5 LHA 120-N 103B EmO 05 08 47.8 -68 45 39           ~ 210 1
6 SNR B0509-67.5 SNR 05 09 31 -67 31.3           ~ 214 0
7 SNR B0519-69.0 SNR 05 19 35.14 -69 02 00.5           ~ 150 0
8 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16507 1
9 SNR J052501-693842 SNR 05 25 02.20 -69 38 39.0           ~ 385 1
10 SNR J052559-660453 SNR 05 26 00.4 -66 05 02     12.71     ~ 429 2
11 M 1 SNR 05 34 32 +22 00.8           ~ 6002 1
12 SN 1987A SN* 05 35 28.020 -69 16 11.07           SNIIpec 4781 2
13 SNR B0535-66.0 SNR 05 35 43.1 -66 01 59           ~ 170 1
14 IC 443 SNR 06 17.0 +22 34           ~ 1191 1
15 SNR G272.2-03.2 SNR 09 06 50 -52 07.0           ~ 65 0
16 SNR G292.0+01.8 SNR 11 24 59 -59 19.1           ~ 315 1
17 ESO 134-11 HII 14 40 29 -62 38.7           ~ 551 1
18 NAME Lupus SN SNR 15 02 22.1 -42 05 49           ~ 1297 1
19 SNR G327.4+00.4 SNR 15 48 20 -53 49.0           ~ 89 0
20 SNR G337.2-00.7 Rad 16 39 15.0 -47 48 27           ~ 60 1
21 SNR G344.7-00.1 SNR 17 03 49 -41 42.5           ~ 84 0
22 SNR G347.3-00.5 SNR 17 12 27 -39 41.2     12.27     ~ 694 1
23 SNR G349.7+00.2 SNR 17 18 10.160 -37 18 53.80           ~ 178 0
24 SNR G350.1-00.3 SNR 17 21 06 -37 26.9     13.60     ~ 71 0
25 SNR G352.7-00.1 Rad 17 27 43 -35 06.5           ~ 65 1
26 NAME Kepler SNR Rad 17 30 35.976 -21 28 56.23           ~ 772 4
27 NAME Sgr A East Rad 17 45 41 -29 00.8           ~ 481 2
28 GAL 000.61+00.01 SNR 17 47.0 -28 25           ~ 11 0
29 SNR G001.9+00.3 SNR 17 48 46.10 -27 09 50.9           ~ 194 1
30 SNR G021.5-00.9 SNR 18 33 33.612 -10 34 07.69           ~ 436 1
31 3C 397 SNR 19 07 33.20 +07 08 32.0           ~ 214 2
32 W 49b SNR 19 11 09.000 +09 06 24.00           ~ 440 1
33 NAME Cyg Loop SNR 20 51.0 +30 40           ~ 883 0
34 NAME Cas A SNR 23 23 24.000 +58 48 54.00     14.30     ~ 2668 1
35 NAME Galactic Ridge ? ~ ~           ~ 478 1

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2023.01.28-11:31:51

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