Note: this is an archived version which has been superseded.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

G54.1+0.3    

• Right Ascension: 19 30 31
• Declination: +18 52
• Size (/arcmin): 12?
• Type: C?
• Flux density at 1 GHz (/Jy): 0.5
• Spectral Index: 0.1

Radio: Filled-centre core, with faint diffuse emission.

X-ray: Centrally concentrated, with more extended diffuse emission.

Point sources: Central pulsar.

Distance: HI absorption suggests 4.5–9 kpc, association with CO suggest 8.2 kpc.

References:

• Green 1985, MNRAS, 216, 691. Radio at 2.7 GHz (7''×20''). ADS
• Reich et al. 1985, A&A, 151, L10. Effelsberg 100-m at 4.75 GHz (2'.4: S=0.37±0.04 Jy) ADS
• Velusamy & Becker 1988, AJ, 95, 1162. VLA at 1.4 (14'': S=0.48±0.03 Jy), 1.6 (14'': S=0.42±0.03 Jy) and 5 GHz (5'': S=0.33±0.02 Jy), Ooty at 327 MHz (S=0.50±0.08 Jy), plus review of flux densities. ADS
• Seward 1989, AJ, 97, 481. Einstein observations. ADS
• Biggs & Lyne 1996, MNRAS, 282, 691. Pulsar search. ADS
• Gorham et al. 1996, ApJ, 458, 257. Pulsar search. ADS
• Green et al. 1997, AJ, 114, 2058. Parkes 64-m OH observations. ADS
• Lu et al. 2001, A&A, 370, 570. ROSAT and ASCA observations. ADS
• Lu et al. 2002, ApJ, 568, L49. Chandra observations. ADS
• Camilo et al. 2002, ApJ, 574, L71. Pulsar detection. ADS
• Kaplan & Moon 2006, ApJ, 644, 1056. IR upper limit for pulsar. ADS
• Leahy et al. 2008, AJ, 136, 1477. VGPS at 1.4 GHz (1') including HI. ADS
• Koo et al. 2008, ApJ, 673, L147. AKARI observations of surroundings. ADS
• Hurley-Walker et al. 2009, MNRAS, 396, 365. Radio observations at 14 to 18 GHz. ADS
• Bocchino et al. 2010, A&A, 520, A71. XMM and Suzaku observations. ADS
• Lang et al. 2010, ApJ, 709, 1125. VLA at 1.4 GHz (6".6×6".8), 4.7 GHz (3".2×3".3), and 8.2 GHz (3".0×3".2) and Spitzer observations. ADS
• Acciari et al. 2010, ApJ, 719, L69. γ-ray observations. ADS
• Lee et al. 2012, JKAS, 45, 117. CO observations of region. ADS

Last updated: 23 May 2014