Phase-resolved Spectroscopy and Photometry of the Eclipsing Polar UZ Fornacis. Issue Volume 14:Issue S339(2018) (November 2017)

• Record Type: Journal Article
• Authors: Khangale, Z. N.; Potter, S. B.; Woudt, P. A.
• Editors: Griffin, E.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 14:Issue S339(2018)
• Page Start: 314
• Page End: 317
• Publication Date: 2017-11
• Subjects: Accretion, accretion disks, -- techniques: photometric, spectroscopic, -- stars: individual: UZ For, -- cataclysmic variables-planetary systems; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921318002867
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: The blue continuum of the eclipsing polar UZ For is dominated by single- or double-peaked emission from He ii, He i and the Balmer lines. The red spectrum shows weak emission from the Na i doublet at λ 8183 and 8194 Å and strong emission from the Ca ii lines at λ 8498 and 8542 Å. Doppler tomography of the strongest emission features reveals the presence of emission from the irradiated face of the secondary star, the threading region, and the ballistic and magnetically confined accretion stream. We have obtained 28 new eclipse times of UZ For during 2011–2016 as part of our eclipse timing follow-up programme to test the two-planet model proposed to explain variations in the eclipse times of UZ For.