Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998astl...24..111b&link_type=abstract
Astronomy Letters, Volume 24, Issue 1, January 1998, pp.111-115; Pis'ma v Astronomicheskii Zhurnal, Vol. 24, p. 139
Astronomy and Astrophysics
Astronomy
3
Scientific paper
The results of polarimetric UBVRI observations of the active interacting binary system HD 187399 are presented. The detected variable (with orbital phase) linear polarization is shown to arise from the light scattering in the shell that surrounds the unseen secondary component. Being apparently more massive, it accretes matter that flows out of the primary component. An analysis of the polarization variability has yielded estimates for the orbital inclination, i = 46.4 +/- 2.1 deg, and the spatial orientation of the system, Omega = 53 +/- 15 deg. The derived small inclination explains the absence of eclipses in the light curve without invoking the hypothesis of a probable compact nature of the secondary.
Berdyugin Andrei V.
Tarasov Anatolii E.
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