Photometry of the Magnetic White Dwarf SDSS 121209.31+013627.7

(2) Keele University; C. Koen (1); P. F. L. Maxted (2) ((1) University of the Western Cape; South Africa; UK)

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Photometry of the Magnetic White Dwarf SDSS 121209.31+013627.7

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arxiv astro-ph/0607299 v1 pith:ERQET2BP submitted 2006-07-13 astro-ph

C. Koen (1) , P. F. L. Maxted (2) ((1) University of the Western Cape , South Africa , (2) Keele University , UK) This is my paper · ORCID

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The results of 27 hours of time series photometry of SDSS 121209.31+013627.7 are presented. The binary period established from spectroscopy is confirmed and refined to 0.061412 d (88.43 minutes). The photometric variations are dominated by a brightening of about 16 mmag, lasting a little less than half a binary cycle. The amplitude is approximately the same in V, R and white light. A secondary small brightness increase during each cycle may also be present. We speculate that SDSS 121209.31+013627.7 may be a polar in a low state.

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