Single degenerate progenitors of type Ia supernovae
by
Rasmus Voss(Utrecht)
→
Europe/Stockholm
FA31
FA31
Description
In the single degenerate (SD) scenario for type Ia supernovae
SNIa, a white dwarf (WD) accreting from a companion star gains
enough mass to exceed the critical mass and explodes. The formation
and evolution of SD progenitor systems is highly uncertain and
the predictions from population synthesis models differ strongly.
The effects of rapid WD rotation can significantly affect the
progenitor evolution and explosion signatures.
In the SD scenario, the WDs must experience stable hydrogen burning
on the surface to grow to the critical mass, making the WD a bright
X-ray source. Such systems are observed, but the numbers are too
few. However, the majority of sources might be hidden.
