Journal Article

Polarimetry of QQ Vul

Mark Cropper

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 295, issue 2, pages 353-359
Published in print April 1998 | ISSN: 0035-8711
Published online April 1998 | e-ISSN: 1365-2966 | DOI:
Polarimetry of QQ Vul

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This paper presents an investigation of the polarization behaviour of the AM Her system QQ Vul at several epochs over 3 years. There are changes of a factor of 2 in the amplitude of the orbitally phased circular polarization from epoch to epoch. The mean behaviour can be modelled with an accretion arc ahead of and closer to the orbital plane than the magnetic pole, but it has proven difficult to link the changes in polarization with changes in the location of the accretion region. The paper concludes with an investigation into whether the variations are periodic, but the evidence for this is marginal.

Keywords: accretion, accretion discs; polarization; stars: individual: QQ Vul; stars: magnetic fields; novae, cataclysmic variables; X-rays: stars

Journal Article.  0 words. 

Subjects: Astronomy and Astrophysics

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