Making waves | Science News

ADVERTISEMENT

MISSION CRITICAL

Support credible science journalism.

Subscribe to Science News today.


News

Making waves

By
3:21pm, June 14, 2005

From Minneapolis, at a meeting of the American Astronomical Society

Locked in a deadly embrace, two white dwarf stars may be the strongest source of gravitational waves now flooding our galaxy. The stars appear to be separated by just one-fifth the Earth-moon distance.

New X-ray observations of the duo, which resides roughly 1,600 light-years from Earth, indicate that the dwarfs take just under 5.5 minutes to orbit each other and are the most-compact binary-star system known. NASA's Chandra X-ray Observatory also found that the pair's orbital period is declining by 1.2 milliseconds each year.

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More on Gravitational waves