Note: this is an archived version which has been superseded. The current SNR catalogue is at http://www.mrao.cam.ac.uk/surveys/snrs/

G166.0+4.3     VRO 42.05.01

• Right Ascension: 05 26 30
• Declination: +42 56
• Size (/arcmin): 55×35
• Type: S
• Flux density at 1 GHz (/Jy): 7
• Spectral Index: 0.37

Radio: Two arcs of strikingly different radii.

Optical: Nearly complete ring.

X-ray: Predominantly in SW.

Distance: HI indicates 4.5 kpc.

References:

• van den Bergh et al. 1973, ApJS, 26, 19. Optical observations. ADS
• Willis 1973, A&A, 26, 237. NRAO 300-ft at 2.7 GHz (5': S=5.2±1.0 Jy). ADS
• Lozinskaya 1979, AuJPh, 32, 113. Hα interferometry. ADS
• Landecker et al. 1982, ApJ, 261, L41. DRAO at 1.4 GHz (1'.0×1'.4), plus review of flux densities. ADS
• Fesen et al. 1983, ApJS, 51, 337. Deep [OIII] imagery. ADS
• Pineault et al. 1985, A&A, 151, 52. VLA at 1.4 GHz (16''×20'') of part of remnant, and optical observations. ADS
• Pineault et al. 1987, ApJ, 315, 580. DRAO and VLA combined at 1.4 GHz (20''). ADS
• Fesen et al. 1985, ApJ, 292, 29. Optical spectra. ADS
• Braun & Strom 1986, A&AS, 63, 345. WSRT HI Observations. ADS
• Landecker et al. 1989, MNRAS, 237, 277. DRAO at 1.4 GHz (1'.0×1'.4), including HI. ADS
• Burrows & Guo 1994, ApJ, 421, L19. ROSAT images and spectra. ADS
• Biggs & Lyne 1996, MNRAS, 282, 691. Pulsar search. ADS
• Guo & Burrows 1997, ApJ, 480, L51. ASCA observations. ADS
• Lorimer et al. 1998, A&A, 331, 1002. Pulsar search. ADS
• Leahy & Tian 2005, A&A, 440, 929. CGPS at 408 MHz (3'.4×5'.0) and 1.4 GHz (1'.0×1'.4), for spectral index studies. ADS
   also see: Tian & Leahy 2006, A&A, 451, 991. Erratum. ADS
• Kothes et al. 2006, A&A, 457, 1081. CGPS at 408 MHz (~3': S=8.1±0.9 Jy) and 1420 MHz (~1': S=5.1±0.4 Jy), including polarisation and review of flux densities. ADS

Last updated: 19 Feb 2009