The M. - σ* Project

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Title: The M. - σ* Project
Author: Batcheldor, Daniel
Abstract: There is an intimate link between supermassive black hole (SMBH) mass (M•) and the stellar velocity dispersion (σ*) 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 σ* 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 σ*. The aim of the M• − σ* Project is to use STIS long-slit spectroscopy, integral field spectroscopy and the latest stellar models, to best estimate the values of M• and σ* in as many cases as possible. The project will determine the most appropriate properties of the M• − σ* relation itself. *Please refer to full-text for proper numerical symbols
Description: Originally published in the Memorie della Società Astronomica Italiana (The Journal of the Italian Astronomical Society.
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Date: 2008

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