2002A&A...389L..61U


Query : 2002A&A...389L..61U

2002A&A...389L..61U - Astronomy and Astrophysics, volume 389, L61-64 (2002/7-2)

Is the Cygnus Loop two supernova remnants?

UYANIKER B., REICH W., YAR A., KOTHES R. and FUERST E.

Abstract (from CDS):

The Cygnus Loop is classified as a middle-aged supernova remnant (SNR) located below the Galactic equator (l=74°, b=-8.°6) and 770pc away from us. Its large size and little confusion with Galactic emission makes it an ideal test ground for evolutionary and structural theories of SNRs. New radio continuum mapping of the Cygnus Loop at 2695MHz with the Effelsberg 100-m telescope provides indications that the Cygnus Loop consists of two separate SNRs. Combining this result with data from the literature we argue that a secondary SNR exists in the south with a recently detected neutron star close to its center. Two interacting SNRs seem to be the best explanation to account for the Cygnus Loop observations at all wavelengths.

Abstract Copyright:

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

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16002 1
2 SNR B0547-69.7 SNR 05 47 17.5 -69 41 38           ~ 92 1
3 NGC 6960 ISM 20 45 38.0 +30 42 30           ~ 69 0
4 2MASS J20493540+2938509 * 20 49 35.4141202416 +29 38 50.921721132     12.6     G 10 0
5 NAME Cygnus Loop Southern Shell SNR 20 49.6 +29 33           ~ 8 0
6 NAME Cyg Loop SNR 20 51.0 +30 40           ~ 867 0
7 NAME Cygnus Loop Northern Shell SNR 20 51.0 +31 03           ~ 6 0
8 NGC 6992 sh 20 56 19 +31 44.6           ~ 45 2

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2022.05.26-20:43:15

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