Note: this is an archived version which has been superseded.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

G205.5+0.5     Monoceros Nebula

• Right Ascension: 06 39 00
• Declination: +06 30
• Size (/arcmin): 220
• Type: S
• Flux density at 1 GHz (/Jy): 160
• Spectral Index: 0.5

Radio: In complex region, parts may be HII regions.

Optical: Large ring, near Rosette nebula.

X-ray: Possibly detected.

Distance: Mean optical velocity suggests 0.8 kpc, low frequency radio absorption suggests 1.6 kpc.

References:

• Milne & Dickel 1974, AuJPh, 27, 549. Parkes 64-m at 2.7 GHz (9'). ADS
• Velusamy & Kundu 1974, A&A, 32, 375. NRAO 300-ft at 2.7 GHz (5'), part only. ADS
• Dickel & DeNoyer 1975, AJ, 80, 437. Arecibo at 111 MHz (1': S=462±180 Jy) and S_610 MHz=245 Jy. ADS
• Davies et al. 1978, A&AS, 31, 271. Deep optical plates. ADS
• Lozinskaya 1981, SvAL, 7, 17. Mean optical velocity. ADS
• Graham et al. 1982, A&A, 109, 145. Effelsberg 100-m at 2.7 GHz (4'.4: S=97.6±12.5 Jy), plus review of flux densities. ADS
• Fesen et al. 1985, ApJ, 292, 29. Optical spectra. ADS
• Leahy et al. 1986, MNRAS, 220, 501. Einstein observations. ADS
• Odegard 1986, ApJ, 301, 813. TPT at 20.6, 25.6 and 30.9 MHz (24', 19' and 16'). ADS
• Esposito et al. 1996, ApJ, 461, 820. Possible associated γ-ray emission. ADS
• Biggs & Lyne 1996, MNRAS, 282, 691. Pulsar search. ADS
• Oliver et al. 1996, A&A, 315, 578. CO observations of some of surroundings. ADS
• Jaffe et al. 1997, ApJ, 484, L129. γ-ray detection. ADS

Last updated: 13 Aug 1998