Note: this is an archived version which has been superseded.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

G5.4−1.2     Milne 56

• Right Ascension: 18 02 10
• Declination: −24 54
• Size (/arcmin): 35
• Type: C?
• Flux density at 1 GHz (/Jy): 35?
• Spectral Index: 0.2?

Notes: Part been called G5.3−1.0. Has been suggested that this is not a SNR.

Radio: Incomplete shell, including wide `v' of emission to east with small flat-spectrum source at apex.

Optical: Detected.

X-ray: Pulsar detected, with faint extension.

Distance: HI absorption suggests >4.3 kpc.

Point sources: Pulsar associated with flat spectrum source.

References:

• Clark et al. 1975, AuJPA, 37, 75. Molonglo at 408 MHz (3': S=38 Jy). ADS
• Becker & Kundu 1975, AJ, 80, 679. NRAO 140-ft at 10.6 GHz (3'). ADS
• Dickel & Milne 1976, AuJPh, 29, 435. Comparison of earlier Parkes 64-m maps at 2.7 GHz (8'.4) and 5 GHz (4'.4). ADS
• Angerhofer et al. 1977, A&A, 55, 11. NRAO 140-ft at 5 GHz (6'.8: S=21.9±2.4 Jy). ADS
• Altenhoff et al. 1979, A&AS, 35, 23. Effelsberg 100-m at 4.9 GHz (2'.6). ADS
• Zealey et al. 1979, A&AS, 38, 39. Optical detection. ADS
• Becker & Helfand 1985, Nature, 313, 115. VLA at 1.4 and 5 GHz. ADS
• Helfand & Becker 1985, Nature, 313, 118. Suggesting it is not a SNR. ADS
• Manchester et al. 1985, MNRAS, 212, 975. Pulsar detection. ADS
• Caswell et al. 1987, MNRAS, 225, 329. MOST at 843 MHz (42"×110"). ADS
• Frail & Kulkarni 1991, Nature, 352, 785. Pulsar and remnant association. ADS
• Manchester et al. 1991, MNRAS, 253, 7P. Pulsar and remnant association. ADS
• Milne et al. 1992, MNRAS, 255, 707. Parkes 64-m at 4.75 (4'.5: S=30.8±2.1 Jy) and 8.4 GHz (3': S=24±3 Jy), including polarisation. ADS
• Kassim 1992, AJ, 103, 943. VLA at 327 MHz (3'.0×4'.9: S=38 Jy). ADS
• Frail et al. 1994, AJ, 107, 1120. VLA at 327 MHz (68"×73"), plus HI absorption. ADS
• Biggs & Lyne 1996, MNRAS, 282, 691. Pulsar search. ADS
• Gaensler & Frail 2000, Nature, 406, 158. Pulsar observations, including proper motion. ADS
• Kaspi et al. 2001, ApJ, 562, L163. X-ray detection of pulsar, and upper limit for remnant. ADS
• Thorsett et al. 2002, ApJ, 573, L111. Proper motion study of pulsar. ADS
• Reich 2002, in NSPS, p1. Effelsberg 100-m at 10.6 GHz, including polarisation. ADS

Last updated: 2 Apr 2006