学术报告

(Seminar)

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Title: The thirteen billion year history of the most massive black holes.

Speaker: Prof. Hagai Netzer　

Affiliation: Scool of Physics and Astronomy, Tel Aviv University, Israel

Time: Sep. 21, 2012 (Friday) 10:30

Venue: Meeting Room 401 (Main Building)

Abstract: 

Super-massive black holes (BHs) that are found in the centers of most galaxies started their
growth when the universe was about 300 million years old. Some of these "seed black holes"
were probably the remnants of the earliest stars. The largest BHs, that are some 10^10 times
more massive than the sun, accumulated most of their mass during the first 3 billion years
after the big bang. The less massive ones are still growing today.
I will describe a large project that follows BH evolution with emphasis on the z=4.8 universe.
This epoch, when the universe was 1.2 Gyr old, represents the fastest growth episode of such objects
and the fastest star formation in their host galaxies. We can combine the two in a way that helps
to explain the cosmological evolution of the largest galaxies and the most massive BHs.

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2.4米望远镜组

中国科学院天体结构与演化重点实验室

云南天文台学术委员会

2012-09-19