Finally, we show that collisions between white dwarfs and main-sequence stars, which may be detectable as bright transients, occur at a rate of O(100) Gpc(-3) yr(-1) in the local universe. We find ...

White dwarfs are unique because their temperature is inconsistent, Whyte explained. Since the late-stage stars no longer have a fuel source, they spend the remainder of their lives cooling down.

For the study, the researchers used computer models to compare Earth-like exoplanets each orbiting a white dwarf star and the main-sequence K-dwarf star, Kepler-62, both of which exhibit temperatures ...

Of course, these planets were barren and stripped of any atmosphere, so we had to look at main sequence ... dwarfs. The study notes that about 6% of white dwarfs seem to pause their rate of cooling.

The First Catalog of Candidate White Dwarf–Main-sequence Binaries in Open Star Clusters: A New Window into Common Envelope Evolution. The Astrophysical Journal , 2024; 976 (1): 102 DOI: 10.3847 ...

What differentiates a star from even the largest, hottest gas giant is fusion. How does that work, and how do stars form in ...

The expectation of cooling white dwarfs clashes with observational data from the European Space Agency ’s Gaia satellite, which showed in 2019 that a population of white dwarfs was able to apparently ...

Discovery tests theory on cooling of white dwarf stars Date: March 6, 2024 Source: University of Victoria Summary: Open any astronomy textbook to the section on white dwarf stars and you'll likely ...

Mar 06, 2024: Discovery tests theory on cooling of white dwarf stars (Nanowerk News) Open any astronomy textbook to the section on white dwarf stars and you’ll likely learn that they are “dead stars” ...

The cooling occurs because the white dwarfs have depleted their nuclear heat source. In the classic picture, this causes the dense plasma in a white dwarf’s interior to freeze, leading the star ...

A slowly cooling stellar ember called a white dwarf with a scar on its face is providing new insight into the behavior of certain "cannibal" stars at the end of their life cycle.