A hot subdwarf–white dwarf super-Chandrasekhar candidate supernova Ia progenitor

  title={A hot subdwarf–white dwarf super-Chandrasekhar candidate supernova Ia progenitor},
  author={Ingrid Pelisoli and Patrick G. Neunteufel and Stephan Geier and Thomas Kupfer and U. Heber and Andreas Irrgang and David Schneider and Anna Bastian and Jan van Roestel and Veronika Schaffenroth and Brad N. Barlow},
  journal={Nature Astronomy},
Supernova Ia are bright explosive events that can be used to estimate cosmological distances, allowing us to study the expansion of the Universe. They are understood to result from a thermonuclear detonation in a white dwarf that formed from the exhausted core of a star more massive than the Sun. However, the possible progenitor channels leading to an explosion are a long-standing debate, limiting the precision and accuracy of supernova Ia as distance indicators. Here we present HD265435, a… 

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