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Paper: Time-Series Spectroscopy and Photometry of the Helium Atmosphere Pulsating White Dwarf EC 20058–5234
Volume: 509, 20th European Workshop on White Dwarfs (EuroWD16)
Page: 315
Authors: Sullivan, D. J.
Abstract: We summarise both photometric and spectroscopic observations of the southern DBV white dwarf EC 20058–5234 (QU Tel) obtained primarily using a Magellan 6.5 m telescope. With the aim of identifying pulsation-induced spectral variations, the time-resolved 30 sMagellan spectra are phased using 54 h of contiguous time-series photometry obtained using the Mt John (NZ) 1.0 m telescope. A comparison of the DFTs obtained from a 1997 nine day multisite WET run and the two day single site Magellan observations is made. The difficulty of establishing a reliable surface temperatures for DBVs is mentioned.
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