2009MNRAS.396..365H

Query : 2009MNRAS.396..365H

2009MNRAS.396..365H - Mon. Not. R. Astron. Soc., 396, 365-376 (2009/June-2)

AMI observations of northern supernova remnants at 14-18GHz AMI consortium:.

HURLEY-WALKER N., SCAIFE A.M.M., GREEN D.A., DAVIES M.L., GRAINGE K., HOBSON M.P., JONES M.E., KANEKO T., LASENBY A., POOLEY G., SAUNDERS R.D.E., SCOTT P.F., TITTERINGTON D., WALDRAM E. and ZWART J.T.L.

Abstract (from CDS):

We present observations between 14.2 and 17.9GHz of 12 reported supernova remnants (SNRs) made with the Arcminute Microkelvin Imager Small Array (AMI SA). In conjunction with data from the literature at lower radio frequencies, we determine spectra of these objects. For well-studied SNRs (Cas A, Tycho's SNR, 3C58 and the Crab Nebula), the results are in good agreement with spectra based on previous results. For the less well-studied remnants, the AMI SA observations provide higher-frequency radio observations than previously available, and better constrain their radio spectra. The AMI SA results confirm a spectral turnover at ≃11GHz for the filled-centre remnant G74.9+1.2. We also see a possible steepening of the spectrum of the filled-centre remnant G54.1+0.3 within the AMI SA frequency band compared with lower frequencies. We confirm that G84.9+0.5, which had previously been identified as a SNR, is rather an Hii region and has a flat radio spectrum.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): radiation mechanisms: non-thermal - supernova remnants - radio continuum: ISM

Simbad objects: 24

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Number of rows : 24
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 QSO B0016+73 Bla 00 19 45.78637230 +73 27 30.0176020     19.00 18.26   ~ 313 1
2 SN 1572A SN* 00 25 21.5 +64 08 27           B8 1254 1
3 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
4 SNR G130.7+03.1 SNR 02 05 35.73 +64 49 41.3           ~ 661 4
5 6C 021252+733537 BLL 02 17 30.81335327 +73 49 32.6217355     19.00 18.97   ~ 485 1
6 QSO J0530+13 Bla 05 30 56.41674741 +13 31 55.1494688     20.00 19.35   ~ 1004 1
7 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
8 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
9 SNR G039.2-00.3 SNR 19 04 03.9 +05 26 56           ~ 204 1
10 ICRF J192559.6+210626 BLL 19 25 59.60535459 +21 06 26.1620257           ~ 212 1
11 SNR G054.1+00.3 SNR 19 30 10.6 +18 50 22           ~ 271 1
12 SNR G057.2+00.8 SNR 19 35.0 +21 57           ~ 119 0
13 PSR B1937+21.4 Psr 19 39 38.560096 +21 34 59.13552           ~ 1142 0
14 SNR G059.5+00.1 SNR 19 42.6 +23 35           ~ 30 0
15 SNR G063.7+01.1 SNR 19 47 52 +27 45.0           ~ 31 0
16 SNR G065.7+01.2 SNR 19 52 13.70 +29 25 08.0           ~ 106 0
17 SNR G067.7+01.8 SNR 19 54.5 +31 29           ~ 39 0
18 QSO B2005+40 Bla 20 07 44.9449261536 +40 29 48.603352020   18.5 19.00 20.3   ~ 319 1
19 SNR G074.9+01.2 SNR 20 16 02.4 +37 12 48           ~ 195 2
20 SNR G076.9+01.0 SNR 20 22 20.000 +38 43 00.00           ~ 64 0
21 GAL 084.9+00.5 HII 20 50.5 +44 53           ~ 15 0
22 ICRF J205252.0+363535 Sy2 20 52 52.05501061 +36 35 35.3005698   22.083   21.200   ~ 112 2
23 NAME Cas A SNR 23 23 26.0 +58 48 41     14.30     ~ 3033 1
24 6C 235239+493337 BLL 23 55 09.45814429 +49 50 08.3394994   21.101   18.400   ~ 284 1

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