Ivana Ebrová a Jan Ebr (CZE)
Astronomers
Ivana is an astronomer by profession. She uses simulations to model and analyse galaxy collisions. She then uses the results of these analyses to detect their effects in images from large telescopes, revealing the turbulent history of the galaxy.
Jan is a particle physicist by profession. Currently, he manages a network of robotic telescopes and is a long-time university lecturer in astronomy. He enjoys sharing his knowledge and enthusiasm for science.
After 20 years of living together, Honza and Ivana have come together at the Institute of Physics of the Academy of Sciences of the Czech Republic, where, in addition to research, they jointly organise a number of popularisation events.
Největší srážky ve vesmíru
20. 7. 2024 13:00 - 13:45
Elliptical galaxies are the largest objects in the Universe - so, in principle, there can be no bigger collisions. But their colliding is rather strange, mainly because nothing really collides with anything. So how can objects so sparse that typically about 99.9999999999999999999999999% of their volume (there are 25 nines by the way) is empty space "collide"? How can we study such a collision when it takes hundreds of millions of years when our lifetimes are incomparably shorter? We will try to answer these and many other questions with the help of computer simulations, images from the world's largest telescopes, and some practical tools (though not life-size ones, of course).