S E M I N A R I

Departament d'Astronomia i Astrofísica
Universitat de València

    Non-thermal emission associated to massive stars

Valentí Bosch-Ramon

Universitat de Barcelona/Max-Planck-Institut für Kernphysik


Seminari del departament d'Astronomia i Astrofísca

Dimecres 07 octubre 2009

16:00


Resum

Massive stars are strongly linked to the production of non-thermal emission. The strong winds produced by massive stars feed with matter the accretion process and can lead to the generation of jets, which are detected in radio and also emit high-energy photons. In addition, powerful collimated outflows from massive protostars interacting with the ISM can lead to the acceleration of particles and subsequent non-thermal emission from radio to high energies. Finally, shocks linked with the stellar wind in binary systems, either formed by two massive stars or by a massive star plus a young pulsar, can lead to the production of broadband non-thermal radiation. In this talk, I will briefly describe the sources and go through the most relevant mechanisms of non-thermal emission in which massive stars are involved.