AAS 198th Meeting, June 2001
Session 88. Seyfert Galaxies and QSOs
Oral, Thursday, June 7, 2001, 2:00-3:30pm, C107

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[88.03] Emission Line Variability in Akn 564

L.C. Gallo, W.F. Welsh (San Diego State University)

In 2000 June--July an AGN Watch Campaign on Arakelian 564 (a NLSy1) took place, involving HST, RXTE, ASCA, Chandra, XMM and several ground--based observatories. During this time we obtained 12 low--res optical spectra of Akn 564 with the 9m Hobby--Eberly Telescope (HET).

Historically, Akn 564 has shown no conclusive sign of optical variability. We will present evidence of small, but significant, optical emission--line variations. We examine this line variability in context with the observations at other wavelengths.

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