A Type Ia supernova (read: "type one-A") is a supernova that occurs in binary systems (two stars orbiting one another) in which one of the stars is a white dwarf.

The figure below shows sample light curves from various types of supernovae. Light curves and spectra from Type Ia supernovae are remarkably homogeneous, especially when compared to …

Dec 6, 2023 · One involves surveying the sky for a special type of exploding star, called a type Ia supernova. Many supernovae occur when massive stars run out of fuel, rapidly collapse under …

Apr 9, 2025 · The discovery of a future Type Ia supernova just 150 light-years away is more than a curiosity—it’s a milestone in astrophysics. While the universe works on timescales we can’t …

Dec 7, 2025 · Type Ia supernovae that exploded when the universe was only two-thirds of its present size were fainter and thus farther away than they would be in a universe without dark …

Dec 8, 2022 · Type Ia supernovae are stellar explosions used to measure the universe's expansion. These explosions result from white dwarfs exceeding a critical mass, causing them …

Below is a sonified video of observations of the type 1a supernova called 2011fe. The video scans over time (x-axis) and modulates pitch based on magnitude (y-axis).

Apr 7, 2025 · What makes this finding particularly remarkable is that these two stars are on an inevitable collision course, destined to produce a Type 1a supernova.

Feb 17, 2025 · Type 1a supernovae are extremely powerful events that occur in binary systems containing at least one white dwarf star – the core remnant of a Sun-like star. Sometimes, the …

A BayeSN distance ladder: H0 from a consistent modelling of Type Ia supernovae from the optical to the near-infrared (Dhawan+, 2023) Calibrate 67 Type Ia SNe in the optical and NIR