D Batcheldor


There is an intimate link between supermassive black hole (SMBH) mass (M•) and the stellar velocity dispersion (!#) of the host bulge. This has a fundamental impact on our understanding of galaxy and SMBH formation and evolution. However, the scatter, slope and zero-point of the relation is a subject of some debate. For any progress to be made on this relation, the established values of M• and !# must be robust. Over 50% of current M• estimates have been made using the technique of stellar dynamics. However, there is serious concern over this method that prompts their re-evaluation. In addition, it is not clear how best to define !#. The aim of the M• −!# Project is to use STIS long-slit spectroscopy, integral field spectroscopy and the latest stellar models, to best estimate the values of M• and !# in as many cases as possible. The project will determine the most appropriate properties of the M• − !# relation itself.

Publication Date



Mem. S.A.It. Vol. 79, 1239. SAIt 2008 Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.

Document Type


Department, Program, or Center

Chester F. Carlson Center for Imaging Science (COS)


RIT – Main Campus