Variations in brightness and polarization of UX Draconis.

Details Variations in brightness and polarization of UX Draconis. Variations in brightness and polarization of UX Draconis.

Oct 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ap.....41..367p&link_type=abstract

Astrophysics, Volume 41, Issue 4, pp.367-371

Astronomy and Astrophysics

Astrophysics

1

Carbon Stars: Brightness Variations, Carbon Stars: Polarization, Semiregular Variables: Periods

Scientific paper

Photoelectric observations of the brightness and polarization of the carbon star UX Dra in 1989 1993 are presented and discussed. The strong variations in this star’s period and the impossibility of determining it from our observations forced us to use an extrapolation of Vetešnik’s periodvariation curve. As in Vetesnik’s observations, our determinations of UX Dra’s brightness are satisfied far better by a period twice as long. The variations in UX Dra’s brightness and polarization parameters resemble most closely those of an RV Tau star, in our opinion.

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