Abstract
Observations of thermal emission at radio wavelengths provides a powerful diagnostic of the rate of mass loss and temperature of the winds of early-type stars. Some winds are also strong sources of nonthermal emission. Case studies of known thermal and nonthermal sources provide empirical criteria for classifying the observed radio radiation. Mass loss rates are derived for 37 OB and Wolf-Rayet stars considered “definite” or “probable” thermal wind sources by these criteria. The rate of mass loss is strongly linked to stellar luminosity in OB stars and probably linked to stellar mass in Wolf-Rayet stars, with no measurable correlation with any other stellar property. A few late-type giants and supergiants also have detectable thermal emission, which arises from extended, accelerating, partially-ionized chromospheres.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Abbott, D. C., Bieging, J. H., and Churchwell, E. 1981, Ap. J., 250, 645.
Abbott, D. C., Bieging, J. H., and Churchwell, E. 1984a, Ap. J., 280, 671.
Abbott, D. C., Bieging, J. H., and Churchwell, E. 1985, these proceedings.
Abbott, D. C., Bieging, J. H., and Churchwell, E. 1985, in preparation.
Abbott, D. C., Bieging, J. H·, Churchwell, E., and Cassinelli, J. P. 1980, Ap. J., 238, 196 (paper I).
Abbott, D. C., Telesco, C. M., and Wolff, S. C. 1984, Ap. J., 279, 225.
Allen, C. W. 1973, Astrophysical Quantities (London: Athlone).
Barlow, M. J. 1979, in Mass Loss and Evolution of O-Type Stars, eds. P. S. Conti and C. W. H. De Loore (Dordrecht: D. Reidel), p. 119.
Barlow, M· J. 1982, in Wolf-Rayet Stars; Observations, Physics, and Evolution, eds. C. W. H. de Loore and A. J. Willis (Dordrecht: Reidel), p. 149.
Bieging, J. H., Abbott, D. C., and Churchwell, E. B. 1982, Ap. J., 263, 207.
Castor, J. I., Abbott, D. C., and Klein, R. I. 1975, Ap. J., 195, 157.
Conti, P. S. 1982, in Wolf-Rayet Stars: Observations, Physics, and Evolution, eds. C. de Loore and A. Willis (Dordrecht: Reidel), p. 3.
Drake, S. A. and Linsky, J. L. 1983, Ap. J. (Letters), 274, L77.
Dickel, H. R., Habing, H. J., and Isaacman, R. 1980, Ap. J. (Letters), 238, L39.
Garmany, C. D. and Conti, P. S. 1984, Ap. J., 284, 705.
Garmany, C. D., Olson, G. L., Conti, P. S., and Van Steenberg, M. 1981, Ap. J., 250, 660.
Hartmann, L. and Avrett, E. H. 1984, Ap. J., 284, 238.
Hjellming, R. M. and Newell, R. T. 1983, Ap. J., 275, 704.
Hogg, D. E. 1982, in Wolf-Rayet Stars: Observations, Physics, and Evolution, eds. C. de Loore and A. Willis (Dordrecht: Reidel), p. 221.
Hogg, D. E. 1985, these proceedings.
van der Hucht, K. A., Conti, P. S., Lundstrora, I., and Stenholm, B. 1981, Space Sci. Rev., 28, 227.
Kornilov, V. G. and Cherepaschuk, A. M. 1979, Pis’ma Astr. Zu., 5, 398.
Lamers, H.J.G.L.M. and Morton, D. C. 1976, Ap. J. Suppl., 32, 715.
Lamers, H.J.G.L.M. and Snow, T. P. 1978, Ap. J., 219, 504.
Maeder, A. 1983, Astr. Αp., 120, 113.
Massey, P. 1982, in Wolf-Rayet Stars: Observations, Physics, and Evolution, eds. C. W. H. de Loore and A. J. Willis (Dordrecht: Reidel), p. 251.
Newell, R. T. and Hjellming, R. M. 1982, Ap. J. (Letters), 263, L85.
Olson, G. L. and Ebbets, D. 1981, Ap. J., 248, 1021.
Panagia, N. and Felli, M. 1975, Astr. Αp., 39, 1.
Rodriguez, L. F., Roth, M., Tapia, M., Canto, J., Sarmiento, Α., Persi, P., and Ferrari-Toniolo, M. 1985, these proceedings.
Schmid-Burgk, J. 1982, Astr. Αp., 108, 169.
White, R. L. 1984, Ap. J., in press.
White, R. L. and Becker, R. H. 1982, Ap, J., 262, 657.
White, R. L. and Becker, R. H. 1983, Ap. J. (Letters), 272, L19.
Wright, A. E. and Barlow, M. J. 1975, M.N.R.A.S., 170, 41.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1985 D. Reidel Publishing Company
About this paper
Cite this paper
Abbott, D.C. (1985). Thermal Radio Emission from the Winds of Single Stars. In: Hjellming, R.M., Gibson, D.M. (eds) Radio Stars. Astrophysics and Space Science Library, vol 116. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5420-5_9
Download citation
DOI: https://doi.org/10.1007/978-94-009-5420-5_9
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8892-3
Online ISBN: 978-94-009-5420-5
eBook Packages: Springer Book Archive