Hostname: page-component-7bb8b95d7b-lvwk9 Total loading time: 0 Render date: 2024-09-20T22:38:24.578Z Has data issue: false hasContentIssue false
  • English
  • Français

Variable dust formation by the double-line spectroscopic binary WR 70 (HD 137603, WC9vd+B0I)

Published online by Cambridge University Press:  26 May 2016

Peredur M. Williams ,
Karel A. van der Hucht  and
Fred Marang
Peredur M. Williams
Affiliation:
Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, Scotland, UK
Karel A. van der Hucht
Affiliation:
SRON Nationaal Instituut voor Ruimteonderzoek, Sorbonnelaan 2, NL-3584 CA Utrecht, Nederland
Fred Marang
Affiliation:
South African Astronomical Observatory, P.O. Box 9, Observatory, 7935, South Africa

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Infrared photometry of the WC9vd+B0I spectroscopic binary WR 70 over two decades shows variable dust emission. The variations are relatively slow and show evidence for an underlying process with a period P = 1045 ± 60 d, together with modulation on shorter and longer time-scales.

Type
Part 1. Atmospheres of Massive Stars
Information
Symposium - International Astronomical Union , Volume 212: A Massive Star Odyssey: From Main Sequence to Supernova , 2003 , pp. 261 - 262
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Cohen, M. 1975, MNRAS 173, 489.CrossRefGoogle Scholar
Dhillon, V.S., Privett, G.J. 1997, period time-series analysis package, Starlink User Note 167.5, Rutherford Appleton Laboratory.Google Scholar
Golombek, D.A. 1983, Estudio Espectrografico de Una Estrella Supergiante con Líneas de Emisión, , , Argentina.Google Scholar
Niemela, V.S. 1995, in: van der Hucht, K.A. & Williams, P.M. (eds), Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution, Proc. IAU Symposium No. 163 (Dordrecht: Kluwer), p. 223.CrossRefGoogle Scholar
Pitault, A., Epchtein, N., Gómez, A.E., Lortet, M.C. 1983 A&A 120, 53.Google Scholar
Williams, P.M., van der Hucht, K.A., Thé, P.S. 1987, A&A 182, 91.Google Scholar