Discovery of eleven new ZZ Ceti stars

Publication information:

Castanheira, Kepler, Mullally, Winget, Koester, Voss, Kleinman, Nitta, Eisenstein, Napiwotzki, et al. Discovery of eleven new ZZ Ceti stars. Astronomy and Astrophysics. 2006;450:227–231.

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Abstract

We report the discovery of eleven new ZZ Cetis using telescopes at OPD(Observatório do Pico dos Dias/LNA) in Brazil, the 4.1 m SOAR(Southern Astrophysical Research) telescope at Cerro Pachon, Chile, andthe 2.1 m Otto Struve telescope at McDonald observatory. The candidateswere selected from the SDSS (Sloan Digital Sky Survey) and SPY (ESO SNIa progenitor survey), based on their T_eff obtained fromoptical spectra fitting. This selection criterion yields the highest