Abstract
A program to collect time‐series spectra of pulsating variable stars was undertaken over a period of several months in 2004 with the 0.6−m reflecting telescope at the Middlebury College Observatory using a bench‐mounted, fiber‐fed CCD spectrograph. The spectra were obtained in the red region (5800–6800 A) at resolution approximately 2.5 A. Primarily, stars classified SRd or RV Tau were observed, although other targets (such as delta Scu variables) were included as well. The spectral coverage and resolution allow, for stars brighter than roughly R = 10, the study of Hα emission or absorption strength variation, as well as the determination of temperature spectral class. The spectrograph is also capable of radial velocity determinations (for brighter specimens) at the level of a few km/s. This program demonstrated the utility of a dedicated, modest‐aperture telescope in acquisition of useful spectroscopic time‐series observations for these variable stars.
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