2012ApJ...746...79A

Query : 2012ApJ...746...79A

2012ApJ...746...79A - Astrophys. J., 746, 79 (2012/February-2)

Modified equipartition calculation for supernova remnants.

ARBUTINA B., UROSEVIC D., ANDJELIC M.M., PAVLOVIC M.Z. and VUKOTIC B.

Abstract (from CDS):

Determination of the magnetic field strength in the interstellar medium is one of the more complex tasks of contemporary astrophysics. We can only estimate the order of magnitude of the magnetic field strength by using a few very limited methods. Besides the Zeeman effect and Faraday rotation, the equipartition or minimum-energy calculation is a widespread method for estimating magnetic field strength and energy contained in the magnetic field and cosmic-ray particles by using only the radio synchrotron emission. Despite its approximate character, it remains a useful tool, especially when there are no other data about the magnetic field in a source. In this paper, we give a modified calculation that we think is more appropriate for estimating magnetic field strengths and energetics in supernova remnants (SNRs). We present calculated estimates of the magnetic field strengths for all Galactic SNRs for which the necessary observational data are available. The Web application for calculation of the magnetic field strengths of SNRs is available at http://poincare.matf.bg.ac.rs/~arbo/eqp/.

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Journal keyword(s): ISM: magnetic fields - ISM: supernova remnants - radio continuum: general

Simbad objects: 33

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Number of rows : 33
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 SN 1572A SN* 00 25 21.5 +64 08 27           B8 1188 1
2 SNR G132.6+01.5 SNR 02 17 40 +62 45.0           ~ 179 0
3 SNR G160.8+02.6 SNR 05 01 00.000 +46 40 00.00           ~ 212 0
4 NAME MONOCEROS NEB SNR 06 38 43 +06 30.2           ~ 250 0
5 NAME Pup A BL? 08 24 07 -42 59.8           ~ 600 1
6 SNR G292.2-00.5 SNR 11 19.3 -61 28           ~ 90 1
7 SNR G296.8-00.3 SNR 11 58 30 -62 35.0           ~ 57 0
8 SNR G304.6+00.1 SNR 13 05 59 -62 42.0           ~ 85 0
9 ESO 134-11 HII 14 40 29 -62 38.7           ~ 565 1
10 1A 1439-61 BL? 14 43 00 -62 30.0           ~ 368 1
11 NAME Lupus SN SNR 15 02 22.1 -42 05 49           ~ 1329 1
12 AJG 44 Psr 16 17 33.000 -51 02 00.00           ~ 512 3
13 SNR G337.8-00.1 SNR 16 39.0 -46 59           ~ 76 0
14 QSO B1714-373 BL? 17 18 10.160 -37 18 53.80           ~ 187 0
15 NAME Kepler SNR Rad 17 30 40.5 -21 29 14           ~ 795 4
16 SNR G001.9+00.3 SNR 17 48 46.0 -27 09 52           ~ 210 1
17 SNR G021.8-00.6 SNR 18 32 45 -10 08.0           ~ 129 0
18 SNR G023.3-00.3 SNR 18 34 51.80 -08 44 38.2           ~ 218 0
19 4C -04.71 Rad 18 41 19.8 -04 56 06           ~ 327 3
20 SNR G033.6+00.1 SNR 18 52 29.000 +00 38 42.00           ~ 285 1
21 SNR G046.8-00.3 SNR 19 18 10 +12 09.0           ~ 71 0
22 SNR G053.6-02.2 SNR 19 38.8 +17 14           ~ 150 0
23 SNR G065.1+00.6 SNR 19 54.7 +28 35           ~ 60 0
24 4C 04.71 Rad 20 44 45.3 +04 44 05           ~ 11 1
25 CTB 104a Rad 21 27.9 +50 46           ~ 26 0
26 SNR G093.7-00.2 SNR 21 29.3 +50 50           ~ 71 1
27 SNR G096.0+02.0 SNR 21 30 30 +53 59.0           ~ 22 0
28 SNR G108.2-00.6 SNR 22 53 37.0 +58 51 36           ~ 20 0
29 CTB 109 BL? 23 01 35 +58 53.0           ~ 344 0
30 3C 461 BL? 23 23 24.000 +58 48 54.00     14.30     ~ 2792 1
31 SNR G114.3+00.3 SNR 23 37 05.780 +61 51 01.69           ~ 120 1
32 2FGL J2358.9+6325 Q? 23 53 42.000 +63 15 00.00           ~ 69 0
33 CTB 1 SNR 23 59 13 +62 26.2           ~ 159 0

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