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arXiv · 1012.3408

Rapid Oscillations in Cataclysmic Variables. XVII. 1RXS J070407+262501

J. Patterson·J. R. Thorstensen·H. A. Sheets·J. Kemp·L. Vican·H. Uthas·D. Boyd·M. Potter·T. Krajci·T. Campbell·G. Roberts·D. Starkey·B. Goff
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Abstract

We present a study of the recently discovered intermediate polar 1RXS J070407+262501, distinctive for its large-amplitude pulsed signal at P = 480 s. Radial velocities indicate an orbital period of 0.1821(2) d, and the light curves suggest 0.18208(6) d. Time-series photometry shows a precise spin period of 480.6700(4) s, decreasing at a rate of 0.096(9) ms/yr, i.e. on a time scale P/P-dot =2.5 x 10^6 yr. The light curves also appear to show a mysterious signal at P = 0.263 d, which could possibly signify the presence of a "superhump" in this magnetic cataclysmic variable.

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J. Patterson, J. R. Thorstensen, H. A. Sheets, J. Kemp, L. Vican, H. Uthas, D. Boyd, M. Potter, T. Krajci, T. Campbell, G. Roberts, D. Starkey, B. Goff. 2010-12-15. Rapid Oscillations in Cataclysmic Variables. XVII. 1RXS J070407+262501. https://doi.org/10.1086/658674

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