PCS 181 Lecture Notes - Lecture 11: Gamma-Ray Burst, Hot Jupiter, Doppler Effect
Document Summary
> 3km in size = we can still escape it. < 3km in size = can"t escape it anymore in order to get out, you need to be faster than the speed of light. Gamma ray bursts come from extragalactic (e. g. anywhere in the universe) Supernovae/hypernovae, neutron star-neutron star collision, explosion involving black holes cause gamma ray bursts. Can figure out planets around the stars and what they are like and if there"s life on it. Stars are very bright, planets are very very very dim. Systems are very far from us have a very small angular separation : appear closer together, easier to spot planets if the system is closer to us. Star has a lot of glare: easier to see the planet if it orbits far from the star (extremely distant planet from its star, not likely to have life on planets very far from their star.
