A Comparison of Methods for Measuring Supermassive Black Hole Methods

Details A Comparison of Methods for Measuring Supermassive Black Hole Methods A Comparison of Methods for Measuring Supermassive Black Hole Methods

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934607a&link_type=abstract

American Astronomical Society, AAS Meeting #219, #346.07

Astronomy and Astrophysics

Astronomy

Scientific paper

In this study we compare the masses of supermassive black holes (SMBHs) in a sample of 80 spiral galaxies estimated by applying the correlations between supermassive black hole mass (MBH) and host-galaxy bulge velocity dispersion (σ), luminosity (L; the MBH-σ and MBH-L relations), maximum rotation velocity and pitch angle relations. These measurements are used to calculate the mass of the SMBH at the center of each of these galaxies. Here all used methods provide a determination of SMBH mass. We determine pitch angles using a 2D Fourier decomposition technique, bulge luminosity using a 2-D surface brightness profile modeling routine, and take velocity dispersions and maximum rotation velocities from the literature. We determine and compare SMBH masses using each method.

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