[Alumnos] HOY 13 hs - Seminario Dr. Stephan Geier

[Secretaría de Ciencia y Técnica]

*Estimados,

Les recordamos que hoy tendremos el siguiente seminario a las 13:00 hs. 
en el Salón Meridiano. Los esperamos 15 minutos antes del Seminario con 
café y galletitas.

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Secretaría de Ciencia y Técnica
FCAG*

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****Seminario: **Dr. Stephan Geier**

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Privatdozent en la Universidad de Tübingen en Alemania


Título: Close binary progenitors and ejected hypervelocity companions of 
   thermonuclear supernovae.


Resumen: Close binaries consisting of compact helium stars (hot 
subdwarfs) and massive white dwarfs have been proposed as possible 
progenitors of thermonuclear supernovae via the so-called 
double-detonation channel.

While the white dwarf is completely destroyed by the supernova, the  hot 
subdwarf companion is ejected at a velocity, that can be high enough for 
the star to become unbound to our Galaxy (hypervelocity star). I will 
report about an ongoing project to search for the close binary 
progenitors and the hypervelocity star companions ejected by 
thermonuclear supernovae.

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