double-detonation Type Ia supernovas tagged posts

Titan helps researchers explore Explosive Star scenarios

"Outflows" (red), regions where plumes of hot gas escape the intense nuclear burning at a star's surface, form at the onset of convection in the helium shell of some white dwarf stars. This visualization depicts early convection on the surface of white dwarf stars of different masses. Credit: Adam Jacobs, Stony Brook University

“Outflows” (red), regions where plumes of hot gas escape the intense nuclear burning at a star’s surface, form at the onset of convection in the helium shell of some white dwarf stars. This visualization depicts early convection on the surface of white dwarf stars of different masses. Credit: Adam Jacobs, Stony Brook University

3D simulations of double-detonation Type Ia supernovas reveal dynamic burning. Exploding stars may seem like an unlikely yardstick for measuring the vast distances of space, but astronomers have been mapping the universe for decades using stellar eruptions, supernovas, with surprising accuracy.

Type Ia supernovas – exploding white dwarf stars -are considered the most reliable distance markers for objects beyond our local group of galaxies...

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