| Issue |
A&A
Volume 394, Number 1, October IV 2002
|
|
|---|---|---|
| Page(s) | 181 - 186 | |
| Section | Interstellar and circumstellar matter | |
| DOI | https://doi.org/10.1051/0004-6361:20021109 | |
| Published online | 04 October 2002 | |
Polarization variability in the interacting Be binary CX Draconis
Tuorla Observatory, 21500 Piikkiö, Finland e-mail: andrei@astro.utu.fi;piirola@astro.utu.fi
Corresponding author: A. Berdyugin, andrei@astro.utu.fi
Received:
10
April
2002
Accepted:
31
July
2002
We present new UBVRI polarization measurements of the interacting
Be binary CX Dra. On time scale of several weeks polarization variations
clearly correlate with the binary orbital motion. Long term changes in
polarization are seen in the course of several months. Analysis
of the periodic component of polarization gives orbital inclination
which is substantially higher than values previously
reported in the literature (
). Our two datasets obtained
about 9 months apart reveal significant changes in the distribution of
the scattering material of the circumbinary envelope.
Key words: stars: binaries: close / stars: emission line, Be / stars: individual: CX Dra
© ESO, 2002
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