A systematic search for highly-evolved post period-minimum cataclysmic variables. The case of SSS J122221.7-311525 - the most-evolved CV known to date

Autores
Dr.
Vitaly Neustroev
Fecha y hora
10 Mayo 2017 - 12:30 Europe/London
Dirección

Aula

Idioma de la charla
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Idioma de la presentación
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Descripción

According to standard evolutionary theory, cataclysmic variables (CV) evolve from longer to shorter orbital periods until a minimum period P_min is reached.
The period bouncers are such CVs that have passed 
beyond P_min and are evolving back toward longer periods, with the donor star now extremely dim.
This has long been predicted to be the 
"graveyard" and current state of 70% of all CVs, though only about a dozen of more or less robust candidates for
such period bouncer 
systems have been identified until now, out of a thousand of known CVs.
In this talk I will discuss the various methods by which such 
post period-minimum CVs can be recognized, and will also highlight recent progress in this field.

Formato