V ponedeljek,16. maja, ob 10:00 bo v Kuščerjevem seminarju astrodebata o paru novih zvezd v četvornem sistemu, o katerem govori novi članek objavljen v Nature Astronomy, katerega soavtorja sta prof. Tomaž Zwitter in dr. Gregor Traven iz UL FMF. Pridružite se nam lahko tudi na Zoomu. Predavanje bo v angleščini!
Več o samem članku lahko preberete tukaj.
Naslov: HD 74438, a quadruple star which may be on its path toward a supernova explosion
Predavatelj: prof. Tomaž Zwitter (UL FMF)
Povzetek:
Binary stars are quite frequent, but we know only a handful of quadruples. In a recent paper we discuss a quadruple system composed of very young stars in tight orbits. Their mutual gravitational interactions may lead to stellar mergers resulting in a supernova explosion of type Ia. This new evolutionary channel is a promising way to form this type of supernovae which serve as standard candles for distance measurements.
Presentation (PDF)
Video (click on the image below)
Video (click on the image below)
