Poster details
» A Fast Telescope for a Detection of Gamma-ray Bursts
Presenter: Šárka Němcová
The astronomy of high energies is a comparatively new astronomic subject, which is based on a fundamental possibility of gamma-ray bursts detection by specialised satellites. These phenomena are allied to a release of an extra amount of energy. Despite the sources are most probably extra galactic, the radiated energy is so high, that these sources are detectable in “our” part of space as well. In general, these bursts can be detected in two ways. The direct detection is founded on satellite observation. The burst is short (approx. 102s) though and bearings of the source is not very accurate (101 arc minutes). The emission of energy has a response in visible part of electromagnetic spectrum too and thanks to this can be detected by terrestrial optical instruments. Taking into account the short time available and the uncertainty in position, a special type of telescope is needed. The second detection possibility plays on effects of gamma photons interactions with atmosphere of Earth. The finding of this interaction is a particle shower (similarly to interaction of atmosphere with a cosmic radiation). These particles can be detected by another type of special telescope, which detects Cherenkov radiation (RICH detectors).
Coauthors:- Karásek M.
- Valášek M.
- Zicha J.