Surface helium detonation spells end for white dwarf

An international team of researchers has found evidence that the brightest stellar explosions in our Universe could be triggered by helium nuclear detonation near the surface of a white dwarf star. Using Hyper Suprime-Cam ...

V745 Sco: Two stars, three dimensions, and oodles of energy

For decades, astronomers have known about irregular outbursts from the double star system V745 Sco, which is located about 25,000 light years from Earth. Astronomers were caught by surprise when previous outbursts from this ...

A one-of-a-kind star found to change over decades

Astronomers studying the unique binary star system AR Scorpii have discovered the brightness of the system has changed over the past decade. The new evidence lends support to an existing theory of how the unusual star emits ...

Astronomers resolve mystery of white dwarf's mass

New observations of the white dwarf/red dwarf binary star 40 Eridani BC by astronomers at the U.S. Naval Observatory (USNO) have revealed new, definitive values for the orbital period and masses of the components of this ...

Accretion-powered pulsar reveals unique timing glitch

The discovery of the largest timing irregularity yet observed in a pulsar is the first confirmation that pulsars in binary systems exhibit the strange phenomenon known as a 'glitch'. The study is published in the journal ...

Unique study tests fundamental laws of physics

A study that will 'test our understanding of how the Universe works, particularly outside the relatively narrow confines of our planet' is being undertaken by an international team of researchers led by the University of ...

Evidence found of white dwarf remnant after supernova

An international team of space scientists has found evidence of what they believe is a remnant of a type Iax supernova—a white dwarf moving in a way that suggests it was blown across part of the universe by the power of ...

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