The usefulness of type Ia supernovae comes from two facts ... And second, because each type Ia arises from the same type of progenitor and thus has roughly the same amount and type of combustible ...

Empirically, Type Ia supernovae are the most useful ... with the stellar populations in their host galaxies, yielding real progenitor constraints. Dramatic new discoveries, like supernovae ...

that indicates progenitor systems for type I supernovae are unlikely to be exploding stars. Over subsequent decades, a subclass of type I supernovae—the type Ia supernovae—were linked with ...

In the August 24 issue of Science, the multi-institutional Palomar Transient Factory (PTF) team presents the first-ever direct observations of a Type Ia supernova progenitor system. Astronomers ...

Dubbed Teleios, the unusually symmetrical space object is puzzling astronomers with its near-perfect shape and mysterious ...

These two pieces of information provide fresh constraints on progenitor and explosion models. Stated differently, we now have a new piece in the puzzle that is type Ia supernovae, one of the most ...

For a supernova whose light falls off quickly, the progenitor is a lot less massive than the Chandrasekhar mass — yet it’s still a normal type Ia, whose luminosity can be confidently ...

Comparing the observed radio wave strength with theoretical models revealed that the progenitor white dwarf star had been accreting material at a rate of about 1/1000 the mass of the Sun every year.

The study, “A super-Chandrasekhar mass type Ia supernova progenitor at 49 pc set to detonate in 23 Gyr,” was published in Nature Astronomy on April 4, 2025. James Munday from the University of ...

These observations marked the first time that scientists had ever imaged the progenitor of a Type Ia supernova. Yet, something seemed wrong in the Hubble data.i Not only did the images show that ...