Výsledky vyhledávání - "Sheets, H. A."

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

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

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)

Externí odkaz: http://arxiv.org/abs/1012.3408

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Spectroscopy of Nine Cataclysmic Variable Stars

Autor: Sheets, H. A., Thorstensen, J. R., Peters, C. J., Kapusta, A. B., Taylor, C. J.

We present optical spectroscopy of nine cataclysmic binary stars, mostly dwarf novae, obtained primarily to determine orbital periods Porb. The stars and their periods are LX And, 0.1509743(5) d; CZ Aql, 0.2005(6) d; LU Cam, 0.1499686(4) d; GZ Cnc, 0

Externí odkaz: http://arxiv.org/abs/0704.0948

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A Spectroscopic Study of HL Canis Majoris

Autor: Sheets, H. A., Thorstensen, John R.

We present optical spectroscopy of the dwarf nova HL Canis Majoris over a span of four years. The observations were made during standstill, outburst, and quiescence. We determine an orbital period of 0.2167867 +/- 0.0000017 days, based on radial velo

Externí odkaz: http://arxiv.org/abs/astro-ph/0506068

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