2006A&A...447..205T

Query : 2006A&A...447..205T

2006A&A...447..205T - Astronomy and Astrophysics, volume 447, 205-211 (2006/2-3)

Radio observations and spectral index study of the SNR G126.2+1.6.

TIAN W.W. and LEAHY D.A.

Abstract (from CDS):

We present new images of the low radio surface brightness Supernova Remnant (SNR) G126.2+1.6, based on the 408MHz and 1420MHz continuum emission and the HI-line emission data of the Canadian Galactic Plane Survey (CGPS). We find the SNR's flux densities at 408MHz (9.7±3.9Jy) and 1420MHz (6.7±2.1Jy) which have been corrected for flux densities from compact sources within the SNR. We list properties of the 19 brightest compact sources within G126.2+1.6 at both 408MHz and 1420MHz. The integrated flux density based spectral index (Sν∝ν–α) is 0.30±0.41. The respective T-T plot spectral index is 0.30±0.08. We also find spatial variations of spectral index within the SNR: 0.2-0.6. HI observations show structures probably associated with the SNR, i.e., features associated with the SNR's southeastern filaments in the radial velocity range of -33 to -42km/s, and with its northwestern filaments in -47 to -52km/s. This association suggests a distance of 5.6kpc for SNR G126.2+1.6. The estimated Sedov age for G126.2+1.6 is less than 2.1x105yr.

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Journal keyword(s): ISM: individual objects: G126.2+1.6 - ISM: supernova remnants

Nomenclature: Table 1: [TL2006a] NN (Nos 1-19).

Simbad objects: 21

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Number of rows : 21
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 [TL2006a] 11 Rad 01 17 53.45 +64 34 47.7           ~ 1 0
2 [TL2006a] 12 Rad 01 19 37.81 +64 17 03.8           ~ 1 0
3 NVSS J012020+634549 Rad 01 20 19.8 +63 45 47           ~ 2 0
4 [TL2006a] 10 Rad 01 20 40.53 +63 47 47.8           ~ 1 0
5 [TL2006a] 13 Rad 01 21 19.04 +64 30 29.9           ~ 1 0
6 [TL2006a] 18 Rad 01 21 36.35 +64 16 33.9           ~ 1 0
7 [TL2006a] 9 Rad 01 21 38.46 +64 02 06.0           ~ 1 0
8 SNR G126.2+01.6 SNR 01 22.0 +64 15           ~ 54 0
9 [TL2006a] 14 Rad 01 22 31.42 +63 47 37.6           ~ 1 0
10 [TL2006a] 1 Rad 01 22 39.55 +64 07 24.2           ~ 1 0
11 [TL2006a] 6 Rad 01 22 48.99 +63 48 39.6           ~ 1 0
12 [TL2006a] 5 Rad 01 23 05.06 +64 12 19.3           ~ 1 0
13 [TL2006a] 8 Rad 01 23 58.46 +63 41 53.8           ~ 1 0
14 [TL2006a] 17 Rad 01 24 15.65 +64 29 48.3           ~ 1 0
15 [TL2006a] 3 Rad 01 24 26.25 +64 51 48.0           ~ 1 0
16 [TL2006a] 16 Rad 01 24 31.14 +64 02 54.6           ~ 1 0
17 [TL2006a] 19 Rad 01 25 02.05 +64 01 01.1           ~ 1 0
18 [TL2006a] 2 Rad 01 25 35.93 +64 39 16.0           ~ 1 0
19 [TL2006a] 4 Rad 01 26 05.20 +64 13 14.1           ~ 1 0
20 [TL2006a] 15 Rad 01 26 49.86 +63 49 40.5           ~ 1 0
21 NAME Cyg Loop SNR 20 51.0 +30 40           ~ 913 0

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