Note: this is an
archived version which has been superseded. The current SNR
catalogue is at
- Right Ascension: 19 10 00
- Declination: +04 50
- Size (arcmin): 120×60
- Type: ?
- Flux density at 1 GHz (Jy): 85?
- Spectral Index: 0.7?
Notes: Eastern part has been called G40.0-3.1. Is this a SNR?
- Radio: Elongated shell, containing SS433, adjacent to the HII region S74.
- Optical: Faint filaments at the edge of the radio emission.
- X-ray: Emission from SS433 and two lobes.
- Point sources: SS433 is the compact source in the centre of the W50.
- Distance: Distance to SS433 is 5 kpc.
- van den Bergh 1980, ApJ, 236, L23. Optical in Halpha and [SII].
- Zealey et al. 1980, MNRAS, 192, 731. Optical spectra.
- van Gorkom et al. 1982, MNRAS, 198, 757. WSRT HI absorption to nearby point source (not SS433).
- Seaquist & Gilmore 1982, AJ, 87, 378. VLA observations of nearby source.
- Watson et al. 1983, ApJ, 273, 688. X-ray observations.
- Downes et al. 1986, MNRAS, 218, 393. Effelsberg 100-m at 4.75 GHz (2'.4: S=34±4), plus previous 1.7 and 2.7 GHz data.
- Romney et al. 1987, ApJ, 321, 822. VLBI of SS433, including distance.
- Elston & Baum 1987, AJ, 94, 1633. Mosaic with VLA at 1.4 GHz (30") of fine structure only.
- Kawai et al. 1989, PASJ, 41, 491. X-ray observations of SS433.
- Band 1989, ApJ, 336, 937. Einstein and EXOSAT observations.
- Yamauchi et al. 1994, PASJ, 46, L109. X-ray spectral observations.
Last updated: 01 JUL 1995
Dave Green/MRAO, Cambridge, UK/D.A.Green@mrao.cam.ac.uk