S E M I N A R I

Departament d'Astronomia i Astrofísica
Universitat de València

    Collapse simulations of stellar cores in full general relativity

Yuichiro Sekiguchi

Graduate School of Arts and Sciences, University of Tokyo, Komaba, Meguro, Tokyo, Japan


Seminari del departament d'Astronomia i Astrofísica

Divendres 15 juliol 2005

12:00


Resum

Gravitational collapse of (rotating) stellar cores is one of the important astrophysical phenomena: the corresponding topics are (i) supernova explosion mechanism, (ii) gravitational emission, (iii) mass threshold for BH/NS formation, (iv) relations with other high energy phenomena, (v) nucleosynthesis, and so on. After giving a (rather) short review for them, I will talk about results of our recent simulations in which we explore the topics about (ii) and (iii); more precisely, (1) a criterion for prompt black hole formation, and (2) possibility of the onset of dynamics instbilities and GWs from them.