Note: this is an archived version which has been superseded.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

G53.6-2.2 3C400.2, NRAO 611

• Right Ascension: 19 36 30
• Declination: +17 08
• Size (arcmin): 28×33
• Type: S
• Flux density at 1 GHz (Jy): 8
• Spectral Index: 0.75

Notes: Has been called G53.7-2.2.

Radio: Ring of emission, with extension to NW.

Optical: Filaments and diffuse emission.

X-ray: Centrally brightened, offset to NW.

Distance: Mean optical velocity indicates 6.7 kpc.

References:

• Willis 1973, A&A, 26, 237. NRAO 300-ft at 2.7 GHz (5': S=5.3±0.6).
• van den Bergh 1978, ApJS, 38, 119. Optical. ADS
• Velusamy & Kundu 1974, A&A, 32, 375. NRAO 300-ft at 2.7 GHz (5': S=4.8±0.3).
• Clark et al. 1975, AuJPA, 37, 75. Molonglo at 408 MHz (3': S=11.7). ADS
• Dickel & DeNoyer 1975, AJ, 80, 437. Arecibo S(430)=20±10, S(318)=20±3.6. ADS
• Goss et al. 1975, A&A, 43, 459. WSRT at 610 MHz (1'×3': S=13.2±1.6). ADS
• Sabbadin & d'Odorico 1976, A&A, 49, 119. Optical spectra. ADS
• Rosado 1983, RMxAA, 8, 59. Optical spectra. ADS
• Blair & Long 1988, PASP, 100, 461. Optical imaging and spectroscopy. ADS
• Long et al. 1991, ApJ, 373, 567. IPC and optical observations. ADS
• Winkler et al. 1993, ApJ, 405, 608. Optical imaging. ADS
• Dubner et al. 1994, AJ, 108, 207. VLA at 327 MHz (59") and 1.49 GHz (52"), plus X-rays. ADS
• Saken et al. 1995, ApJ, 443, 231. ROSAT observations. ADS

Last updated: 30 JUN 1995