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XMM Observations of Polars from the SDSS

  • Paula Szkody (a1) (a2), Lee Homer (a1), Bing Chen (a3), Arne Henden (a4) and Gary Schmidt (a5)...

Abstract

We condueted XMM observations of 5 faint Polars discovered by the Sloan Digital Sky Survey. The X-ray fluxes and spectra show a variety of shock regimes. The lowest accretor has X-ray properties consistent with an origin on the secondary star. The light curves of all systems show large variability, with one showing a deep eclipse, and with some evidence for orbital-related variations in 2 others.

Resumen

Hemos llevado a cabo observaciones XMM de 5 polares débiles descubiertas pоr el Sloan Digital Sky Survey. Los llujos de rayos X y los espectros present an una variedad de regímenes de choque. El acrecentador más bajo posee propiedades de rayos X consistentes con un origen en la estrella secundaria. Las curvas de luz de todos los sistemas presentan una alta variabilidad con una de ellas mostrando un profundo eclipse, y en otras dos con evidencias de variaciones relacionadas con la órbita.

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References

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deMartino, D. et al. 1998, AAp, 333, L31
Pandel, D. & Cordova, F. A., 2002, MNRAS, 336, 1049
Szkody, P. et al. 2002, AJ, 123, 430
Szkody, P. et al. 2003a, ApJ, 583, 902
Szkody, P. et al. 2003b, AJ, 126, 1499
Wickramasinghe, D., & Ferrario, L. 2000, PASP, 112, 873

Keywords

XMM Observations of Polars from the SDSS

  • Paula Szkody (a1) (a2), Lee Homer (a1), Bing Chen (a3), Arne Henden (a4) and Gary Schmidt (a5)...

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