Masses and Pulsational Modes of δ Scuti Stars in Eclipsing Systems

Details Masses and Pulsational Modes of δ Scuti Stars in Eclipsing Systems Masses and Pulsational Modes of δ Scuti Stars in Eclipsing Systems

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21343302h&link_type=abstract

American Astronomical Society, AAS Meeting #213, #433.02; Bulletin of the American Astronomical Society, Vol. 41, p.301

Astronomy and Astrophysics

Astronomy

Scientific paper

Delta Scuti stars in eclipsing systems are very rare, with only a few dozen known and even fewer are well studied. Eclipsing systems offer the unique opportunity to determine the masses of each component from orbital parameters and to compare that to the masses expected from pulsational mode analysis. Using from the Apache Point Observatory and the New Mexico State University 1-meter telescope, we present radial velocity and multi-color light curves of several eclipsing delta Scuti systems. From these data we have been able to extract the pulsational frequencies and masses of some of the stars. We also present our discovery of a new eclipsing delta Scuti extracted from the Northern Sky Variability Survey and followed up with additional observations. Additionally, the relationship between the orbital and primary pulsational periods of these systems is reexamined with the data from this study.

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