Program: GN-2010A-Q-19

Title:Determining the low-mass end of the local Mbh-sigma relation
PI:Davor Krajnovic
Co-I(s): Richard McDermid, Michele Cappellari, Eric Emsellem, Frederic Bournaud, Leo Blitz, Martin Bureau, Roger Davies, Tim de Zeeuw, Jesus Falcon-Barroso, Sadegh Khochfar, Harald Kuntschner, Raffaella Morganti, Thorsten Naab, Marc Sarzi, Paolo Serra, R.C.E van den Bosch, Glenn van de Ven, Lisa Young

Abstract

Supermassive black holes (SMBH), and the activity they generate, are fundamental in shaping both galaxies and the IGM in the proximate universe and at high redshift. The demography of SMBHs is a key element in theoretical models of structure formation. The recent realization, however, that the current sample of SMBH masses (Mbh) is biased in a complex way hinders its usefulness. We propose to use objects from the unique Atlas3D sample of early-type galaxies. Our team has completed observations of Atlas3D galaxies with SAURON, which resulted in large scale 2D kinematics, crucial in the dynamical models, and luminosity weighted measurement of velocity dispersion (sigma_e) within 1 Re. Here we propose to continue observing with NIFS local early-types with sigma_e below 130km/s targeting an underpopulated but crucial region in Mbh-sigma_e relation. Using our expertise in NIR kinematics and construction of dynamical models, we will provide the low-mass end of the local Mbh-sigma_e relation, surrounding orbital structure and clues for the formation of SMBHs.

Publications using this program's data