Spectral Variations of RV Tauri and Semi-Regular Variables Observed with Kepler

Details Spectral Variations of RV Tauri and Semi-Regular Variables Observed with Kepler Spectral Variations of RV Tauri and Semi-Regular Variables Observed with Kepler

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934803w&link_type=abstract

American Astronomical Society, AAS Meeting #219, #348.03

Astronomy and Astrophysics

Astronomy

Scientific paper

We present ground-based spectra of RV Tauri and Semi-Regular variables taken simultaneously with our Cycle 2 Kepler observations of these objects. Our data set includes the Kepler light curves and spectra taken with the KPNO Coude Feed telescope and, for the fainter objects, the 4-meter Mayall telescope. Our spectral observations cover the region from 3700-5100 angstroms and 6400-9000 angstroms. We have spaced our ground-based observing runs out over a period of 1.5 years to include the twelve months covered by our Cycle 2 Kepler observations. Variations in the continuum, absorption lines and emission features in the spectra of these objects are discussed and compared to their simultaneously observed photometric variations acquired by Kepler. Support for this work is provided by the NSF PAARE program under award AST-0750814 and by NASA under award NNX11AB82G.

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