Time-resolved observations of the short period CV SDSS J123813.73-033933

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dc.creatorZharikov, S. V.
dc.creatorTovmassian, G. H.
dc.creatorNeustroev, V.
dc.creatorMichel, R.
dc.creatorNapiwotzki, R.
dc.date2004-09-27
dc.date.accessioned2026-07-07T02:14:46Z
dc.date.available2026-07-07T02:14:46Z
dc.descriptionWe present simultaneous spectral and photometric observations of SDSS J123813.73-033933.0. From Ha radial velocity measurements we determined the orbital period of the system to be 0.05592+/-0.00002 days (80.53 min). The spectrum shows double Balmer emission lines flanked by strong, broad absorption, indicating a dominant contribution from the white dwarf. The photometric light curve shows complex variability. The system undergoes cyclic brightening up to 0.4 mag which are semi-periodical on short time scales with periods of the order of 7-12 hours. We also detect 40.25 min variability (~0.15 mag) in the light curve, that corresponds to half the orbital period. Its amplitude increases with the cyclic brightening of the system.
dc.description2 pages, 2 figures, needs asp2004.sty, to appear in: The astrophysics of cataclysmic variables and related objects, ASP Conf. Ser., eds. J.M. Hameury and J.P. Lasota
dc.identifierhttps://arxiv.org/abs/astro-ph/0409647
dc.identifierhttp://arxiv.org/abs/astro-ph/0409647
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8246
dc.subjectAstrophysics
dc.titleTime-resolved observations of the short period CV SDSS J123813.73-033933
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