G33.6+0.1     Kes 79, 4C00.70, HC13

• Right Ascension: 18 52 48
• Declination: +00 41
• Size (/arcmin): 10
• Type: S
• Flux density at 1 GHz (/Jy): 22
• Spectral Index: 0.5

Notes: Has been called G33.7+0.0.

Radio: Shell, with bright central region, in complex region.

X-ray: Multiple shells and filaments.

Point sources: Central X-ray pulsar.

Distance: HI absorption gives about 7.8 kpc.

References:

• Caswell et al. 1975, AuJPA, 37, 39. Molonglo at 408 MHz (3': S=35.5 Jy) and Parkes 64-m at 5 GHz (4': S=7.8 Jy). ADS
• Caswell et al. 1975, A&A, 45, 239. HI absorption. ADS
• Dickel & DeNoyer 1975, AJ, 80, 437. Arecibo S_430 MHz=69±33 Jy. ADS
• Becker & Kundu 1975, AJ, 80, 679. NRAO 140-ft at 10.6 GHz (3': S=6.8±1.5 Jy). ADS
• Angerhofer et al. 1977, A&A, 55, 11. NRAO 140-ft at 5 GHz (6'.8: S=11.4±1.1 Jy). ADS
• Caswell et al. 1981, MNRAS, 195, 89. FIRST at 1415 MHz (1'), plus observations of the nearby point source. ADS
• van Gorkom et al. 1982, MNRAS, 198, 757. WSRT HI absorption to nearby point source, possibly extragalactic. ADS
• Seaquist & Gilmore 1982, AJ, 87, 378. VLA observations of nearby source, plus Einstein observations. ADS
• Green 1989, MNRAS, 238, 737. OH absorption. ADS
• Frail & Clifton 1989, ApJ, 336, 854. VLA at 1.4 GHz (1'×2'.9), including HI absorption. ADS
• Velusamy et al. 1991, AJ, 102, 676. VLA at 327 MHz (1'), 1.5 (7''×14'') and 5 GHz (7''), including spectral comparison. ADS
• Green & Dewdney 1992, MNRAS, 254, 686. Observations of adjacent molecular material. ADS
• Kassim 1992, AJ, 103, 943. VLA at 327 MHz (3'.6×3'.8: S=34.8 Jy). ADS
• Seward & Velusamy 1995, ApJ, 439, 715. ROSAT observations. ADS
• Green et al. 1997, AJ, 114, 2058. Parkes 64-m OH observations. ADS
• Koralesky et al. 1998, AJ, 116, 1323. VLA search for OH emission. ADS
• Sugizaki et al. 2001, ApJS, 134, 77. ASCA survey observations. ADS
• Tsunemi & Enoguchi 2002, PASJ, 54, 735. ASCA observations. ADS
• Seward et al. 2003, ApJ, 584, 414. Chandra observations. ADS
• Stanimirović 2003, ApJ, 592, 953. Arecibo OH absorption. ADS
• Sun et al. 2004, ApJ, 605, 742. Chandra observations. ADS
• Gotthelf et al. 2005, ApJ, 627, 390. XMM pulsar detection. ADS
• Reach et al. 2006, AJ, 131, 1479. Spitzer possible detection. ADS
• Halpern et al. 2007, ApJ, 665, 1304. X-ray pulsar timing observations. ADS

Last updated: 16 Mar 2009