Welcome to Peredur Williams's home page

Research on Wolf-Rayet stars and colliding-wind binaries, especially dust formation, X-ray and non-thermal radio emission from WC + O binaries such as the prototype WR140. Colliding wind binary logo
The most recent periastron passage in the WR140 system occurred in 2009, stimulating an intensive multi-wavelength observing campaign to study colliding-wind phenomena while the binary configuration was changing most rapidly on account of the high orbital eccentricity. Some results from the 2009 Campaign were reported in July 2010 at the 39th Liège International Astrophysical Colloquium "The multi-wavelength view of Hot Massive Stars" (Proceedings here).
Java Applet to plot the RV curve of a star in a spectroscopic binary orbit
Publications:
The SAO/NASA ADS for P. M. Williams contains links to most of my publications, together with a few by my namesake(s).
Institute for Astronomy
Royal Observatory
Blackford Hill
Edinburgh
EH9 3HJ
United Kingdom 		Contact:
email: pmw [at] roe.ac.uk

Phone: +44/0 131 668 8300

Fax : +44/0 131 668 8416