The Photometric Period and Variability of the Cataclysmic Variable V849 Herculis (PG 1633+115)

Details The Photometric Period and Variability of the Cataclysmic Variable V849 Herculis (PG 1633+115) The Photometric Period and Variability of the Cataclysmic Variable V849 Herculis (PG 1633+115)

2012-02-16

arxiv.org/abs/1202.3518v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

18 pages, 9 figures, accepted for publication in New Astronomy

Scientific paper

We report time-resolved photometry of the cataclysmic variable V849 Her, and measure a period of 0.1414 \pm 0.0030 days (3.394 \pm 0.072 hours). We also present photometry taken over several weeks in 2010 and 2011, as well as light curves from 1995 to 2011 by the American Association of Variable Star Observers. The spectra, absolute magnitude derived from infrared magnitudes, and variability all suggest that V849 Her is a nova-like variable. The shallow (0.5-magnitude) low states we observe resemble the erratic low states of the VY Sculptoris stars, although they may recur quasi-periodically over an average cycle of 12.462 \pm 0.074 days.

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