Note: this is an archived version which has been superseded.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

G43.3−0.2     W49B

• Right Ascension: 19 11 08
• Declination: +09 06
• Size (/arcmin): 4×3
• Type: S
• Flux density at 1 GHz (/Jy): 38
• Spectral Index: 0.48

Radio: Shell, brightest to the SE and W, near the HII region W49A.

X-ray: Centrally brightened, elongated E–W.

Distance: HI absorption indicates 10 kpc.

References:

• Shaver & Goss 1970, AuJPA, 14, 133. Molonglo at 408 MHz (3') and Parkes 64-m at 2.7 GHz (4'). ADS
• Downes & Wilson 1974, A&A, 34, 133. Effelsberg 100-m at 10.7 GHz (1'.3). ADS
• Green et al. 1975, A&A, 44, 187. Effelsberg 100-m at 15.0 GHz (58'': S=9.0±0.7 Jy). ADS
• Lockhart & Goss 1978, A&A, 67, 355. HI absorption. ADS
• Altenhoff et al. 1979, A&AS, 35, 23. Effelsberg 100-m at 4.9 GHz (2'.6). ADS
• Pye et al. 1984, MNRAS, 207, 649. Einstein observations, and VLA at 1.4 and 5 GHz (both 12''). ADS
• Smith et al. 1985, ApJ, 296, 469. EXOSAT spectrum. ADS
• Morsi & Reich 1987, A&AS, 71, 189. Effelsberg 100-m at 32 GHz (smoothed to 30'': S=6.90±0.38 Jy). ADS
• Moffett & Reynolds 1994, ApJ, 437, 705. VLA at 330 MHz (6".7×7".7: S=64.4 Jy), 1.48 GHz (4".8×5".2: S=31.8 Jy) and 4.85 GHz (4".0×4".1), including polarisation. ADS
• Fujimoto et al. 1995, PASJ, 47, L31. ASCA observations. ADS
• Gorham et al. 1996, ApJ, 458, 257. Pulsar search. ADS
• Green et al. 1997, AJ, 114, 2058. Parkes 64-m OH observations. ADS
• Hwang et al. 2000, ApJ, 532, 970. ROSAT image and ASCA spectroscopy. ADS
• Sugizaki et al. 2001, ApJS, 134, 77. ASCA survey observations. ADS
• Aharonian et al. 2001, A&A, 375, 1008. Limit on high energy γ-rays. ADS
• Brogan & Troland 2001, ApJ, 550, 799. VLA at 1.4 GHz (27''×24'' and 5'') for HI Zeeman splitting. ADS
• Lacey et al. 2001, ApJ, 559, 954. VLA at 74 MHz (26''×23'': S=55.6 Jy) and 326 MHz (6".6×6".2: S=56.0 Jy). ADS
• Kaplan et al. 2002, ApJ, 566, 378. VLA at 333 MHz (50''), and other observations of the region. ADS
• Kawasaki et al. 2005, ApJ, 631, 935. ASCA observations. ADS
• Reach et al. 2006, AJ, 131, 1479. Spitzer observations. ADS
• Miceli et al. 2006, A&A, 453, 567. XMM observations. ADS
• Keohane et al. 2007, ApJ, 654, 938. IR and Chandra observations. ADS

Last updated: 16 Mar 2009