Mining Sky Surveys for Astrophysically Interesting Variable Stars: The Cepheid Period Range

Details Mining Sky Surveys for Astrophysically Interesting Variable Stars: The Cepheid Period Range Mining Sky Surveys for Astrophysically Interesting Variable Stars: The Cepheid Period Range

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1170...86s&link_type=abstract

STELLAR PULSATION: CHALLENGES FOR THEORY AND OBSERVATION: Proceedings of the International Conference. AIP Conference Proceedin

Physics

Cepheids, Star Formation, Quasars, Active Or Peculiar Galaxies, Objects, And Systems

Scientific paper

We have undertaken a project to discover new type II Cepheids in two large-area sky surveys. However, most of the candidates from the surveys differ from type II Cepheids in their amplitude and period distributions and they form a separate, cooler sequence relative to the Cepheids in a temperature-gravity plot. We refer to these objects as ``Cepheid-like'' stars. Many exhibit unstable pulsation which we illustrate with representative light curves.

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