The Black Hole Mass in M87 from Gemini/AO Observations

Details The Black Hole Mass in M87 from Gemini/AO Observations The Black Hole Mass in M87 from Gemini/AO Observations

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21742205g&link_type=abstract

American Astronomical Society, AAS Meeting #217, #422.05; Bulletin of the American Astronomical Society, Vol. 43, 2011

Physics

Optics

Scientific paper

We present results from an adaptive optics study of the central region of M87 using NIFS on Gemini. The kinematics show a dramatic rise in the velocity dispersion with the AO data. The best-fit dynamical model requires the most massive black hole yet measured with spatially-resolved kinematics at 6.6e9 solar masses. The AO data provides a robust measure of the black hole mass since it so well resolves its sphere of influence. This also allows us to probe the stellar orbital structure reliably, where we find a significant increase in tangential orbital anisotropy. Current and future AO data will provide a significant advance for the field.

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