Rapid Oscillations in Cataclysmic Variables. XVII. 1RXS J070407+262501
| Autor: | Joseph Patterson, Laura Vican, Holly A. Sheets, George Roberts, Michael Potter, Bill Goff, Tut Campbell, David Boyd, Jonathan Kemp, Tom Krajci, John R. Thorstensen, Helena Uthas, D. Starkey |
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| Rok vydání: | 2010 |
| Předmět: |
Physics
010308 nuclear & particles physics Cataclysmic variable star FOS: Physical sciences Astronomy and Astrophysics Astrophysics Light curve Orbital period 01 natural sciences Photometry (optics) Stars Intermediate polar Astrophysics - Solar and Stellar Astrophysics Space and Planetary Science 0103 physical sciences 010303 astronomy & astrophysics Solar and Stellar Astrophysics (astro-ph.SR) |
| DOI: | 10.48550/arxiv.1012.3408 |
| Popis: | 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. Comment: Publications of the Astronomical Society of the Pacific, in press |
| Databáze: | OpenAIRE |
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