Visit ASIAA Homepage Registration Deadline: February 15, 2016 (Taiwan Time)
M87 Workshop: Towards the 100th Anniversary of the Discovery of Cosmic Jets
May 23(Mon)-27(Fri), 2016
Taipei, Taiwan

Oral Presentation

Supermassive Black Hole Mass Measurements in NGC1097 and NGC3665

Author(s): Kyoko Onishi (SOKENDAI) Satoru Iguchi (NAOJ) Timothy Davis (Cardiff University) Martin Bureau (University of Oxford) Michele Cappellari (University of Oxford) Marc Sarzi (University of Hertfordshire) Leo Blitz (University of California, Berkeley)

Presenter: Kyoko Onishi (SOKENDAI (The Graduate University for Advanced Studies))

Using molecular gas kinematics, we measure the supermassive black hole (SMBH) mass in two nearby galaxies, NGC1097 and NGC3665. The masses are both measured to good accuracy, and both follow the M-sigma relation. Unlike other direct SMBH mass measurement techniques, molecular gas kinematics is applicable to all galaxy types -- NGC1097 is a Seyfert 1 barred spiral galaxy while NGC3665 is a powerful early-type radio galaxy with a jet. We further show the detailed methods to measure SMBH mass, and discuss different fitting methods. With the large samples allowed by molecular gas kinematics, detailed studies of the M-sigma relation are now possible, that will shed light on the co-evolution of galaxies and SMBHs.

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