Analysis of Hα Lines in epsilon Aurigae Post-eclipse (Poster abstract)

Volume 43 number 1 (2015)

Shelby Jarrett

308 N Cedar Bluff Drive, Valmeyer, IL 62295; sjarr2@uis.edu

Cybil Foster

Address correspondence to S. Jarrett, 308 N Cedar Bluff Drive, Valmeyer, IL 62295; sjarr2@uis.edu

Abstract

(Abstract only) e Aurigae is an eclipsing binary star system located in the constellation Auriga. The primary is an F type star that is eclipsed every 27 years by a large disk of material. Campaigns in the past have focused on the photometry and spectroscopy during the eclipse without much attention to the primary outside of the eclipse. Spectra taken throughout the year following the end of the last eclipse showed continued changes in the spectrum of the primary star outside of the eclipse. We seek to develop a model and comprehension of how the primary spectrum changes independent of the eclipse in order to establish a better understanding of the secondary and its influence on the spectrum during the eclipse. We will analyze medium-resolution spectra covering most of the visual range from the end of the 2011 eclipse to the present for significant patterns, focusing primarily on spectral regions and features that have been previously discovered in the interpretation of the eclipses.