your ID: 0076 First Name: Kelly Last Name: Denney Affiliation: The Ohio State University Title: New Reverberation Mapping Black Hole Estimate for NGC 4593 Authors: Kelly Denney et al. Topic: 1 Session: poster Abstract: We present new observations, light curves, and black hole mass estimate for Seyfert-1 NGC4593 from a campaign undertaken in 2005 Spring at MDM Observatory. Reverberation of the broad H_beta line in the optical spectrum was targeted, resulting in a time delay and mass with uncertainties greatly reduced from past studies.