BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Dynamical friction and the evolution of Supermassive Black hole Bi
 naries: the final hundred-parsec problem  - Fani Dosopoulou
DTSTART:20180319T140000Z
DTEND:20180319T150000Z
UID:TALK103231@talks.cam.ac.uk
CONTACT:Dr William Béthune
DESCRIPTION:Dynamical friction is a fundamental process in astrophysics an
 d its understanding is arguably the most important contribution of Chandra
 sekhar to stellar dynamics. In this talk I will discuss  the results of an
 alytical models and N-body simulations that describe the evolution of a ma
 ssive black hole binary due to dynamical friction. I will show that the st
 andard Chandrasekhar's theory leads to erroneous conclusions about the evo
 lution of the massive binary because the usual simplifying assumptions tha
 t lead to neglect the contribution of stars with large velocities appear t
 o break down. I will discuss the implications of our results for a number 
 of observational puzzles\, which include the presence of multiple nuclei i
 n bright ellipticals\, off-center AGNs and eccentric nuclear disks. 
LOCATION:MR14\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
END:VEVENT
END:VCALENDAR