Note: this is an archived version which has been superseded.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

G357.7−0.1     MSH 17−39

• Right Ascension: 17 40 29
• Declination: −30 58
• Size (/arcmin): 8×3?
• Type: ?
• Flux density at 1 GHz (/Jy): 37
• Spectral Index: 0.4

Notes: Has been suggested that this is not a SNR.

Radio: Multiple arcs and filaments, brighter to NW `head'.

X-ray: Detected from NW `head', and SW `tail'.

Distance: HI absorption suggests beyond Galactic Centre.

References:

• Caswell et al. 1975, AuJPA, 37, 39. Molonglo at 408 MHz (3': S=54.2 Jy) and Parkes 64-m at 5 GHz (4': S=18.5 Jy). ADS
• Milne & Dickel 1975, AuJPh, 28, 209. Parkes 64-m at 5 GHz (4'.4: S=14.6 Jy). ADS
• Altenhoff et al. 1979, A&AS, 35, 23. Effelsberg 100-m at 4.9 GHz (2'.6). ADS
• Caswell et al. 1980, MNRAS, 190, 881. FIRST at 1415 MHz (50''). ADS
• Weiler & Panagia 1980, A&A, 90, 269. Effelsberg 100-m at 9 GHz (1'.5) (private communication from Baker). ADS
• Shaver et al. 1985, Nature, 313, 113. VLA at 1.4 GHz (3".8×10".9) and 5 GHz (12''×26''). ADS
• Becker & Helfand 1985, Nature, 313, 115. VLA at 1.4 GHz and 5 GHz. ADS
• Helfand & Becker 1985, Nature, 313, 118. Suggest it is not a SNR. ADS
• Shaver et al. 1985, A&A, 147, L23. Observations of peripheral compact source. ADS
• Caswell et al. 1989, PASA, 8, 184. MOST at 843 MHz (43''×83''). ADS
• Gray 1994, MNRAS, 270, 835. MOST at 843 MHz (43''×84''). ADS
• Stewart et al. 1994, ApJ, 432, L39. ATCA at 4.79 and 5.84 GHz (12''×22'') and Effelsberg 100-m at 10.6 GHz (1'), including polarisation. ADS
• Frail et al. 1996, AJ, 111, 1651. OH emission near remnant, including masers. ADS
• Yusef-Zadeh et al. 1999, ApJ, 527, 172. VLA of nearby OH masers. ADS
• LaRosa et al. 2000, AJ, 119, 207. VLA at 333 MHz (43''×24''). ADS
• Brogan et al. 2000, ApJ, 537, 875. VLA at 1.7 GHz for OH Zeeman splitting. ADS
• Brogan & Goss 2003, AJ, 125, 272. VLA at 1.4 GHz (13".6×11".4), including HI, and 8.3 GHz (14".3×6".8) recombination line observation of HII region. ADS
• Gaensler et al. 2003, ApJ, 594, L35. Chandra detection. ADS
• Lazendic et al. 2003, AN, 324 (No S1), 157. Molecular line observations. ADS
• Burton et al. 2004, MNRAS, 348, 638. IR and radio observations of HII region. ADS
• Lazendic et al. 2004, MNRAS, 354, 393. IR and molecular line observations. ADS
• Hewitt et al. 2008, ApJ, 683, 189. GBT at 1.6 and 1.7 GHz for OH masers. ADS
• Phillips et al. 2009, MNRAS, 397, 1215. Observations of interactions with surroundings. ADS
• Castro et al. 2013, ApJ, 774, 36. Fermi observations. ADS

Last updated: 23 May 2014