your ID: 0063 
First Name: Jari 
Last Name: Kotilainen 
Affiliation: Tuorla Observatory, University of Turku 

Title: Coevolution of supermassive black holes and their host galaxies 

Authors: Kotilainen,J.K., Falomo,R., Labita,M., Scarpa,R., Treves,A. 

Topic:     1     black holes 

Session:     oral or poster 

Abstract: 
Accretion onto a black hole (BH) is the most viable explanation for the 
huge emitted power in active galaxies. A wealth of observations have 
shown the presence of a BH in many nearby inactive bulges, suggesting 
that all massive spheroids harbor a BH. At low redshift, fundamental 
correlations have been found between the BH mass and the luminosity 
(mass) and the central velocity dispersion of the host galaxy bulge, 
indicating a strong relationship between the formation and evolution of 
massive bulges and their central BH. We discuss the first results of 
an ongoing program to investigate the cosmic evolution of this 
relationship. Rest-UV spectroscopy is used to determine the virial BH 
masses of a large sample of high redshift quasars for which the host 
galaxy luminosity is reliably determined from our previous VLT imaging. 

ABSTRACT 2: 

Title: The Seyfert - starburst connection in radio continuum 

Authors: Kotilainen,J.K., Laine,S., Reunanen,J., Ryder,S.D., Beck,R. 

Topic:     9     stellar processes 

Session:     oral or poster 

Abstract: 
We compare the circumnuclear radio continuum properties of Seyfert and 
starburst galaxies. There is no evidence in the radio emission for a 
link between the triggering of nuclear activity and the properties of 
circumnuclear star formation. Conversely, there is no clear evidence of 
nuclear outflow/jet triggered circumnuclear star formation. The 
difference between the orientations of the radio emission and the galaxy 
major axis is on average larger in Seyferts than in starbursts, and 
Seyferts have a larger size scale of the circumnuclear radio emission. 
Concentration, asymmetry, and clumpiness parameters of radio emission in 
Seyferts and starbursts are comparable. The circumnuclear star formation 
and supernova rates do not depend on the level of nuclear activity. On 
large spatial scales, radio emission traces near-infrared line emission, 
but locally their distributions are different, most likely due to 
varying local magnetic fields and dust absorption and scattering.