HST and Optical Observations of Three Pulsating Accreting White Dwarfs in Cataclysmic Variables
Astrophysics
2009-11-11 v1
Abstract
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 SDSS013132.39-090122.3, SDSSJ161033.64-010223.3 and SDSSJ220553.98+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 15,000K. These temperatures place the accreting white dwarfs outside the instability zone for non-interacting DAV white dwarfs and show that the instability strip is complex for accreting white dwarfs.
Cite
@article{arxiv.astro-ph/0612529,
title = {HST and Optical Observations of Three Pulsating Accreting White Dwarfs in Cataclysmic Variables},
author = {Paula Szkody and Anjum Mukadam and Boris T. Gaensicke and Patrick A. Woudt and Jan-Erik Solheim and Atsuko Nitta and Edward M. Sion and Brian Warner and D. K. Sahu and T. Prabhu and Arne Henden},
journal= {arXiv preprint arXiv:astro-ph/0612529},
year = {2009}
}
Comments
28 pages, 11 figures