ELFT HÍRADÓ

[Uhlár Karola <uhlar AT konkoly.hu>]

*MTA CSFK CSI
INTÉZETI SZEMINÁRIUM*

Előadó:***Werner Norbert* (Kavli Institute for Particle Astrophysics and 
Cosmology, Stanford University)*
*
Előadás címe: *From supermassive black holes to the large-scale 
structure of the Universe

* Kivonat:
I will present recent observational results on the nature and origin of 
the multi-phase interstellar medium (ISM) in giant elliptical galaxies, 
and its role in galaxy evolution and in fueling the central supermassive 
black holes. Our results show that the cold gas in these systems is 
produced chiefly by thermally unstable cooling from the hot phase, and 
that active galactic nuclei are likely to play a crucial role in 
clearing giant elliptical galaxies of their cold gas, keeping them 'red 
and dead'. Then I will 'zoom out' to the outskirts of galaxy clusters 
where we also find hints that supermassive black holes played an 
important role in the distant past. X-ray observations with the Suzaku 
satellite reveal a remarkably homogeneous distribution of iron out to 
the virial radius of the nearby Perseus Cluster, requiring that most of 
the metal enrichment of the intergalactic medium occurred before the 
cluster formed, probably more than ten billion years ago, during the 
period of maximal star formation and black hole activity. Finally, I 
will talk about the upcoming Astro-H mission which will revolutionize 
X-ray spectroscopy and our understanding of the dynamics of the 
intra-cluster medium.

Előadás időpontja: *2014. június 26. (csütörtök), 14:00**
*
Előadás helyszíne: MTA CSFK CSI Előadóterme
1121 Budapest, Konkoly T. M. út 15-17.
begin:vcard
fn:Karola Uhlar
n:Uhlar;Karola
org:Konkoly Observatory
adr:;;Konkoly Thege M. u. 13-17.;Budapest;;1121;Hungary
email;internet:uhlar AT konkoly.hu
title:secretary
tel;work:+3613919322
tel;fax:+3612754668
version:2.1
end:vcard