High Speed Photometry of AM CVns with the UCT CCD

Woudt P. A.; Warner B.

Vol. 20 No. 1 (2004), Contributions

Vol. 20 No. 1 (2004)

Contributions

High Speed Photometry of AM CVns with the UCT CCD

Woudt P. A.⁺⁻
Warner B.⁺⁻

Woudt P. A.

Department of Astronomy, University of Cape Town, Rondebosch 7700, South Africa.

Warner B.

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Keywords

binaries: close
novae
cataclysmic variables
stars: individual (ES Cet
2003aw)
techniques: photometric

How to Cite

High Speed Photometry of AM CVns with the UCT CCD. (2004). Revista Mexicana De Astrofísica Y Astronomía Serie De Conferencias, 20(1), 120-121. https://astronomia.unam.mx/journals/rmxac/article/view/2004rmxac..20..120w

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Abstract

Following our high speed photometric survey of faint cataclysmic variables, two CVs were recognised to be helium-transferring double degenerates; these are ES Cet (P[orb] = 620.21144 s) and 2003aw (P[sh] = 2041.5 s). We have now observed ES Cet photometrically for over two years in order to follow the evolution of the orbital period. We offer an alternative explanation for the nature of V407 Vul (which was classified as an ultra-compact together with RX J0806 and ES Cet); this will take V407 Vul out of the AM CVn classification.

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High Speed Photometry of AM CVns with the UCT CCD

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