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Variable flux of P Cygni in continuum and spectral lines

Published online by Cambridge University Press:  12 April 2016

Indrek Kolka
Indrek Kolka*
Affiliation:
W. Struve Astrophysical Observatory202444 Tartu, Estonia, USSR

Extract

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Recently, cyclic variations have been discovered both photometrically in the continuum flux of P Cygni (Percy et al. 1988) and by position measurements of different components in spectral lines of this star (Kolka 1983, Markova, Kolka 1985, Lamers et al. 1985). Additionally, more stochastic polarimetric (Haves 1985) and radio flux (van den Oord et al. 1985) variations were discovered, too. It has recurrently been stressed that simultaneous multiwavelength observations are badly needed. Fortunately, we had a possibility to complement our own observational data from 1982 with some additional data of the same year from astronomical literature to compare the B, V-filter flux with the behavior of spectral lines having two flux estimates for this period, too.

Type
Section II: Poster Papers, A Brief List of Catalogs, and Index
Information
International Astronomical Union Colloquium , Volume 113: Physics of Luminous Blue Variables , 1989 , pp. 265 - 267
Copyright
Copyright © Kluwer 1989

References

Hayes, D.P. 1985, Astrophys. J. 289, 726.Google Scholar
Kolka, I. 1983, Publ. Academy of Sci. Estonian SSR 32, 51.Google Scholar
Lamers, et al. 1985, Astron. Astrophys. 149, 29.Google Scholar
Luud, et al. 1977, Publ. Tartu Astrophys. Obs. 45, 113.Google Scholar
Markova, N. 1986, Astrophys. Sp. Sci. 123, 5.CrossRefGoogle Scholar
Markova, N., Kolka, I. 1985, Astrofizika 23, 539.Google Scholar
Markova, N., Kolka, I. 1988, Atlas of spectral lines of P Cygni in 1981-83 (in press).Google Scholar
Percy, J.R., Welch, D.L. 1983, Puhl. Astron. Soc. Pac. 95, 491.Google Scholar
Percy, et al. 1988, Astron. Astrophus. 191, 248.Google Scholar
van Blerkom, D. 1970, Monthly Not. Roy. Astron. Soc. 149, 53.Google Scholar
Oord, van den et al. 1985, in Radio Stars (eds. Hjellming, R.M. and Gibson, D.M.), p. 111.CrossRefGoogle Scholar
van Gent, R.H., Lamers, H.J.G.L.M. 1986, Astron. Astrophus. 158, 335.Google Scholar