ELFT HÍRADÓ

[szpl <szpl AT metal.elte.hu>]

ELTE Fizikai Intézet

                                ORTVAY KOLLOKVIUM

                    2017. október 05., csütörtök, 15:00-kor
                Az ELTE Pázmány Péter s. 1/A alatti épületében
                           földszinti 0.81 előadóban


                                Bill Forman
                (Harvard-Smithsonian Center for Astrophysics)


''Fossil Records'' of Outbursts from Supermassive Black Holes and the Effects 
of Outbursts on the Evolution of Gas Rich Galaxies, Groups, and Galaxy Clusters

Kivonatos ismertetés:
Supermassive black holes (SMBHs) play key roles in galaxy and cluster 
evolution.  This is most clearly seen in the "fossil record" that is imprinted 
in the gas rich atmospheres of early type galaxies, groups, and clusters by 
powerful SMBH outbursts.  I will discuss the outburst history of M87 as 
chronicled in its radio and X-ray images and the implications of these 
outbursts for heating gas rich environments. In addition to discussing the 
outburst around M87, I will review the results of a galaxy survey that shows 
the effects of SMBH feedback on early type galaxies and which suggests that, 
at very early epochs, SMBH outbursts have truncated star formation and altered 
the "normal" evolution of the stellar component of galaxy bulges.  I conclude 
by describing a future X-ray mission, X-ray Surveyor, with sub-arcsecond 
angular resolution, that would allow us to study the evolution of SMBHs and 
hot, X-ray emitting atmospheres from high redshifts to the present.