Photometry of the magnetic white dwarf SDSS 121209.31+013627.7
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Date
2006
Authors
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Journal ISSN
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Publisher
Oxford University Press
Abstract
The results of 27 h of time series photometry of SDSS 121209.31+013627.7 are presented.
The binary period established from spectroscopy is confirmed and refined to 0.061 412 d
(88.43 min). 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.
Description
Keywords
Binaries: close, Stars: individual: SDSS 121209.31+013627.7, Stars: low-mass, brown dwarfs, Stars: variables: other
Citation
Koen, C. & Maxted, P. (2006). Photometry of the magnetic white dwarf SDSS 121209.31+013627.7. Monthly Notices of the Royal Astronomical Society, 371(4): 1675-1680