Note: this is an
archived version which has been superseded. The current SNR
catalogue is at
http://www.mrao.cam.ac.uk/surveys/snrs/
G31.9+0.0
3C391
- Right Ascension: 18 46 50
- Declination: -00 59
- Size (/arcmin): 5×7
- Type: S
- Flux density at 1 GHz (/Jy): 24
- Spectral Index: 0.55
- Radio: Shell, brightest in NW.
- X-ray: Diffuse with central core.
- Distance: HI absorption is seen to the tangent point (8.5 kpc).
References:
- Radhakrishnan et al. 1972, ApJS, 24, 49. HI absorption.
- Becker & Kundu 1975, AJ, 80, 679. NRAO 140-ft at 10.6 GHz (3').
ADS
- Green et al. 1975, A&A, 44, 187. Effelsberg 100-m at 15 GHz (58": S>1.6).
ADS
- Becker & Kundu 1976, ApJ, 204, 427. NRAO interferometer at 2.7 GHz (20"×23") and 8 GHz (24"×9"), plus
review of flux densities.
ADS
- Altenhoff et al. 1979, A&AS, 35, 23. Effelsberg 100-m at 4.9 GHz (2'.6).
ADS
- Goss et al. 1979, A&A, 78, 75. FIRST at 1.4 GHz (54"×66": S=20±2) and Effelsberg 100-m at 10.7 GHz (77":
S=7.5±0.8).
ADS
- Wang & Seward 1984, ApJ, 279, 705. IPC and HRI observations.
ADS
- Kassim 1992, AJ, 103, 943. VLA at 327 MHz (3'.4×3'.7: S=44.8).
ADS
- Reynolds & Moffett 1993, AJ, 105, 2226. VLA at 1.4 GHz (6"), including possible associated CO.
ADS
- Moffett & Reynolds 1994, ApJ, 425, 668. VLA at 330 MHz (smoothed to 30": S=38.5±0.5) 1.46 GHz (6".7) and
4.85 GHz (6".2×6".4), including spectral index and polarization studies.
ADS
- Frail et al. 1996, AJ, 111, 1651. OH emission near remnant, including masers.
ADS
- Gorham et al. 1996, ApJ, 458, 257. Pulsar search.
ADS
- Reach & Rho 1996, A&A, 315, L277. ISO spectroscopy.
ADS
- Rho & Petre 1996, ApJ, 467, 698. ROSAT observations.
ADS
- Wilner et al. 1998, AJ, 115, 247. CO observations of surroundings.
ADS
Last updated: 13 AUG 1998
Dave Green/MRAO, Cambridge, UK/D.A.Green@mrao.cam.ac.uk