Note: this is an archived version which has been superseded.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

G127.1+0.5     R5

• Right Ascension: 01 28 20
• Declination: +63 10
• Size (/arcmin): 45
• Type: S
• Flux density at 1 GHz (/Jy): 12
• Spectral Index: 0.45

Notes: Has been called G127.3+0.7.

Radio: Distinct shell, with bright central source.

Point sources: Flat radio spectrum (extragalactic) source at centre of remnant.

Optical: Detected.

Distance: 1.2–1.3 kpc if associated with NGC 559.

References:

• Caswell 1977, MNRAS, 181, 789. Half-Mile Telescope at 1.42 GHz (3'.5×3'.9), plus other observations of central source. ADS
• Salter et al. 1978, A&A, 66, 77. Effelsberg 100-m at 2.7 GHz (4'.4), plus 5 and 8.7 GHz of the central source. ADS
• Pauls 1977, A&A, 59, L13. Effelsberg 100-m at 1.4 GHz (9': S=8±1 Jy). ADS
• Reich et al. 1979, A&A, 78, L13. Effelsberg 100-m at 1.4 GHz (9': S=10.8±1.3 Jy). ADS
• Pauls et al. 1982, A&A, 112, 120. WSRT at 610 MHz (56''×62'') and HI absorption to the point source with the VLA. ADS
• Geldzahler & Shaffer 1982, ApJ, 260, L69. Observations of central source. ADS
• Fürst et al. 1984, A&A, 133, 11. Effelsberg 100-m at 2.7 GHz (4'.4) and 4.8 GHz (2'.6). ADS
• Goss & van Gorkom 1984, JApA, 5, 425. WSRT HI absorption of central source. ADS
• Joncas et al. 1989, A&A, 219, 303. DRAO at 408 MHz (3'.5×3'.9: S=17.9±2.0 Jy) and 1.4 GHz (1'.13×1'.0: S=10.1±0.8 Jy), plus review of flux densities. ADS
• Xilouris et al. 1993, A&A, 270, 393. Optical imaging. ADS
• Lorimer et al. 1998, A&A, 331, 1002. Pulsar search. ADS
• Reich et al. 2003, A&A, 408, 961. Effelsberg 100-m at 863 MHz (14'.5: S=14.6±0.8 Jy). ADS
• Kaplan et al. 2004, ApJS, 153, 269. Chandra limits for any compact sources. ADS
• Leahy & Tian 2006, A&A, 451, 251. CGPS at 408 MHz (3'.4×3'.8: S=17.1±1.7 Jy) and 1.4 GHz (1'.0×1'.2: S=10.0±0.8 Jy). ADS
• Kothes et al. 2006, A&A, 457, 1081. CGPS at 408 MHz (~3': S=15.9±1.0 Jy) and 1420 MHz (~1': S=9.7±0.6 Jy), including polarisation and review of flux densities. ADS
• Sun et al. 2007, A&A, 463, 993. Urumqi 25-m at 5 GHz (9'.5: S=6.3±0.7 Jy), including polarisation. ADS
   also see: Sun et al. 2007, A&A, 469, 1003. Erratum. ADS

Last updated: 20 Feb 2009