Note: this is an archived version which has been superseded.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

G93.3+6.9     DA 530, 4C(T)55.38.1

• Right Ascension: 20 52 25
• Declination: +55 21
• Size (/arcmin): 27×20
• Type: C?
• Flux density at 1 GHz (/Jy): 9
• Spectral Index: 0.45

Notes: Has been called G93.2+6.7.

Radio: Shell, with two bright limbs, highly polarised.

X-ray: Compact central source.

Distance: HI observations suggest 2.2 kpc.

References:

• Roger & Costain 1976, A&A, 51, 151. DRAO at 1.42 GHz (2'×2'.4: S=6.9 Jy). ADS
• Haslam et al. 1980, A&A, 92, 57. Effelsberg 100-m at 1.72 GHz (7'.6: S=6.47±0.52 Jy) and 2.7 GHz (4'.4: S=5.64±0.64 Jy), plus review of flux densities. ADS
• Lalitha et al. 1984, A&A, 131, 196. Effelsberg 100-m at 4.75 GHz (smoothed to 3': S=4.01±0.57 Jy). ADS
• Lorimer et al. 1998, A&A, 331, 1002. Pulsar search. ADS
• Landecker et al. 1999, ApJ, 527, 866. DRAO at 408 MHz (3'.5×4'.3) and 1.4 GHz (1'.0×1'.2), including polarisation and HI. ADS
• Foster & Routledge 2003, ApJ, 598, 1005. HI for distance. ADS
• Kaplan et al. 2004, ApJS, 153, 269. Chandra limits for any compact source. ADS
• Kothes et al. 2006, A&A, 457, 1081. CGPS at 408 MHz (~3': S=10.5±0.7 Jy) and 1420 MHz, including review of flux densities. ADS
• Jiang et al. 2007, ApJ, 670, 1142. Chandra observations. ADS
• Bocchino et al. 2008, AdSpR, 41, 407. XMM observations. ADS

Last updated: 19 Feb 2009