The 5th Physicum seminar takes place on Thursday, 25 April 2019 at 16:15 in the Physicum lecture hall A106 (W. Ostwaldi 1, Tartu). The Physicum seminars are meant for a broad auditorium of physicists and materials scientists, as well as for interested people from other natural and exact sciences (including bacheleor level students) and aim at introducing what is important and new in a certain field, or where a specific reasearch direction has reached today. The current seminar will be held in English.
THE DAWN OF BLACK HOLE ASTRONOMY
how to observe something completely dark and why is it so exciting?
On 10 April 2019 the international Event Horizon Telescope collaboration revealed the first image of a black hole. The seminar aims to give a concise scientific background of this major discovery and highlight some future perspectives. There will be five short talks:
A Brief Introduction to Dark Compact Objects
how to distinguish black holes from more exotic wormholes, gravastars, boson stars, etc?
Laur Järv (University of Tartu, Institute of Physics)
The Astrophysics of Supermassive Black Holes
where to find the beasts and how they feed?
Indrek Vurm (University of Tartu, Tartu Observatory):
Observations with the Event Horizon Telescope
how an interferometer of the size of the Earth got the picture, and what was actually measured?
Antti Tamm (University of Tartu, Tartu Observatory)
The Black Hole "Shadow"
where can the light rays near a black hole go, and how does the image arise?
Christian Pfeifer (University of Tartu, Institute of Physics)
The Dawn of Black Hole Astronomy
what can be inferred from the image of M87*, what are the next tasks and targets?
Manuel Hohmann (University of Tartu, Institute of Physics)
Hello, M87* (Pōwehi)!
["Pōwehi" is a proposed unofficial name for the supermassive black hole in the galaxy M87. It means the "embellished dark source of unending creation" in the Hawaii language and is inspired by the Kumulipo, a chant about the origins of the world from a Hawaiian perspective.]