Note: this is an archived version which has been superseded.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

G18.8+0.3 Kes 67

• Right Ascension: 18 21 10
• Declination: -12 25
• Size (arcmin): 17×11
• Type: S
• Flux density at 1 GHz (Jy): 33
• Spectral Index: 0.4

Notes: Has been called G18.9+0.3.

Radio: Incomplete shell, in complex region near the HII region W39.

Distance: HI absorption indicates >9.5 kpc, and possibly <19 kpc.

References:

• Willis 1973, A&A, 26, 237. NRAO 300-ft at 2.7 GHz (5': S=17±7).
• Clark et al. 1975, AuJPA, 37, 75. Molonglo at 408 MHz (3': S=38). ADS
• Caswell et al. 1975, A&A, 45, 239. Parkes HI absorption. 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
• Altenhoff et al. 1979, A&AS, 35, 23. Effelsberg 100-m at 4.9 GHz (2'.6). ADS
• Milne et al. 1989, PASAu, 8, 187. Parkes 64-m at 8.4 GHz (3'.0: S=12.9±1.0), including polarization. ADS
• Kassim 1992, AJ, 103, 943. VLA at 327 MHz (2'.9×3'.5: S=55). ADS
• Dubner et al. 1996, AJ, 111, 1304. VLA at 1.4 GHz (75"×55": S=29.9±0.3). ADS

Last updated: 20 AUG 1996