AAS 207th Meeting, 8-12 January 2006
Session 9 Circumstellar Disks I
Poster, Monday, 9:20am-7:00pm, January 9, 2006, Exhibit Hall

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[9.03] FFT Deconvultion of Be Star H\alpha Line Profiles

S. J. Austin (University of Central Arkansas)

We have been monitoring the spectroscopic variability of Be stars using the UCA Fiber Fed Spectrograph. The spectra are 0.8 Angstrom/pixel resolution of the H\alpha line. The observed line profiles are a convolution of the actual profile and the instrumental profile. A Fast Fourier Transform (FFT) method has been used to deconvolve the observed profiles, given the instrument profile obtained by observing the narrow lines from the HgNe wavelength calibration lamp. The long-term monitoring of the spectroscopic variability of Be stars is crucial for testing the various Be star models. Deconvolved H-\alpha line profiles, velocities, and variability are shown for gamma Cas, delta Sco, chi Oph, eta PsA, 48 Lib, and upsilon Sgr (HD181615).

Funding has been provided by the UCA University Research Council and the Arkansas Space Grant Consortium.

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