2006/12/19 by Paula Szkody, Anjum S. Mukadam, Anjum Mukadam +17
Physics and Astronomy · #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Cataclysmic variable star #Cepheid variable #Gamma-ray bursts and supernovae #Hubble space telescope #Instability strip #Intermediate polar #Light curve #Photometry (optics) #Physics #Spectral line #Stars #Stellar, planetary, and galactic studies #White dwarf #astro-ph
paper · pdf · doi:10.1086/511854
28 pages, 11 figures
arxiv created 2006/12/19 · openalex publication_date 2007/03/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
Ultraviolet observations using the Solar Blind Channel on the Hubble Space Telescope provide light curves and low-resolution spectra of three pulsating white dwarfs in the cataclysmic variables SDSS J013132.39-090122.3, SDSS J161033.64-010223.3, and SDSS J220553.98+115553.7. The UV light curves show enhanced pulsation amplitudes over those from simultaneous and previous optical photometry, while the UV-optical spectra are fit with white dwarf temperatures near 15,000 K. These temperatures place the accreting white dwarfs outside the instability zone for noninteracting DAV white dwarfs and show that the instability strip is complex for accreting white dwarfs.