UW News

James Davenport


August 5, 2021

Superflares may be less harmful to exoplanets than previously thought, study shows

an artists depiction of a small star with a planet orbiting it

Astronomers have long suspected that superflares, extreme radiation bursts from stars, can cause lasting damage to the atmospheres — and thus habitability — of exoplanets. A new study published in the Monthly Notices of the Royal Astronomical Society reports that they pose only a limited danger to planetary systems.


January 14, 2021

Astronomers document the rise and fall of a rarely observed stellar dance

An image of stars in the night sky, showing a particularly bright binary at the center called HS Hydra.

Astronomers have catalogued 126 years of changes to a binary star system called HS Hydrae. Analyzing observations from astro-photographic plates in the late 1800s to TESS observations in 2019, they show that the two stars in HS Hydrae began to eclipse each other starting around a century ago, peaking in the 1960s. The degree of eclipsing then plummeted over the course of just a half century, and will cease around February 2021.


January 3, 2018

Space dust, not aliens: Two UW astronomers assist in new research on ‘mysterious’ star

UW astronomers Brett Morris and James Davenport assisted in new research on “Tabby’s Star,” named for Louisiana State University astronomer Tabetha Boyajian.