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<p><b style="font-weight:normal;"
id="docs-internal-guid-c411744a-c30c-f387-de7b-85ed6c2f6e35">Estimados,<br>
<br>
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.<br>
<br>
--<br>
Secretaría de Ciencia y Técnica<br>
FCAG</b></p>
<p><b style="font-weight:normal;"
id="docs-internal-guid-c411744a-c30c-f387-de7b-85ed6c2f6e35"><b>---------------------------------------------------------------------------------------------------------------------------------------------------------------</b></b></p>
<p><b style="font-weight:normal;"
id="docs-internal-guid-c411744a-c30c-f387-de7b-85ed6c2f6e35"><b
style="font-weight:normal;"
id="docs-internal-guid-696beaf9-e6e0-bd77-7665-b4316c61f92a">
<p dir="ltr"
style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size:12pt;font-family:Verdana;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;"><b style="font-weight:normal;" id="docs-internal-guid-c411744a-c30c-f387-de7b-85ed6c2f6e35"><b style="font-weight:normal;" id="docs-internal-guid-696beaf9-e6e0-bd77-7665-b4316c61f92a"><span style="font-size:12pt;font-family:Verdana;color:#000000;background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;">Seminario: </span></b></b>Dr. Stephan Geier</span></p>
</b></b><b style="font-weight:normal;"
id="docs-internal-guid-c411744a-c30c-f387-de7b-85ed6c2f6e35"><b
style="font-weight:normal;"
id="docs-internal-guid-696beaf9-e6e0-bd77-7665-b4316c61f92a">
<p dir="ltr"
style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size:12pt;font-family:Verdana;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;">Privatdozent en la Universidad de Tübingen en Alemania</span></p>
<br>
<p dir="ltr"
style="line-height:1.2;margin-top:0pt;margin-bottom:0pt;text-align:
justify;"><span style="font-size:12pt;font-family:Verdana;color:#000000;background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;">Título</span><span style="font-size:12pt;font-family:Verdana;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;">: Close binary progenitors and ejected hypervelocity companions of thermonuclear supernovae.</span></p>
<br>
<p dir="ltr"
style="line-height:1.2;margin-top:0pt;margin-bottom:7pt;text-align:
justify;"><span style="font-size:12pt;font-family:Verdana;color:#000000;background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;">Resumen</span><span style="font-size:12pt;font-family:Verdana;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;">: 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. </span></p>
<p dir="ltr"
style="line-height:1.2;margin-top:0pt;margin-bottom:0pt;text-align:
justify;"><span style="font-size:12pt;font-family:Verdana;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;">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.</span></p>
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