Hubble Space Telescopeand Optical Observations of Three Pulsating Accreting White Dwarfs in Cataclysmic Variables | Zendy

Paula Szkody | Zendy; Anjum S. Mukadam | Zendy; B. T. Gänsicke | Zendy; P. A. Woudt | Zendy; J. E. Solheim | Zendy; A. Nitta | Zendy; E. M. Sion | Zendy; Brian D. Warner | Zendy; D. K. Sahu | Zendy; T. P. Prabhu | Zendy; A. A. Henden | Zendy

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Hubble Space Telescopeand Optical Observations of Three Pulsating Accreting White Dwarfs in Cataclysmic Variables

Author(s) -

Paula Szkody,

Anjum S. Mukadam,

B. T. Gänsicke,

P. A. Woudt,

J. E. Solheim,

A. Nitta,

E. M. Sion,

Brian D. Warner,

D. K. Sahu,

T. P. Prabhu,

A. A. Henden

Publication year - 2007

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/511854

Subject(s) - white dwarf , physics , astrophysics , photometry (optics) , instability strip , astronomy , hubble space telescope , light curve , intermediate polar , cataclysmic variable star , spectral line , stars , cepheid variable

Ultraviolet observations using the Solar Blind Channel on the Hubble SpaceTelescope provide light curves and low resolution spectra of three pulsatingwhite dwarfs in the cataclysmic variables SDSS013132.39-090122.3,SDSSJ161033.64-010223.3 and SDSSJ220553.98+115553.7. The UV light curves showenhanced pulsation amplitudes over those from simultaneous and previous opticalphotometry, while the UV-optical spectra are fit with white dwarf temperaturesnear 15,000K. These temperatures place the accreting white dwarfs outside theinstability zone for non-interacting DAV white dwarfs and show that theinstability strip is complex for accreting white dwarfs.Comment: 28 pages, 11 figure

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