Space, the final frontier

source https://chandra.si.edu/blog/node/719

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered a strange new object in our Milky Way galaxy.

An international team reported Wednesday that this celestial object — perhaps a star, pair of stars or something else entirely — is emitting X-rays around the same time it’s shooting out radio waves. What’s more, the cycle repeats every 44 minutes, at least during periods of extreme activity.

Located 15,000 light-years away in a region of the Milky Way brimming with stars, gas and dust, this object could be a highly magnetized dead star like a neutron or white dwarf, Curtin University’s Ziteng Andy Wang said in an email from Australia.

Or it could be “something exotic” and unknown, said Wang, lead author of the study published in the journal Nature.

NASA’s Chandra X-ray Observatory spotted the X-ray emissions by chance last year while focusing on a supernova remnant, or the remains of an exploded star. Wang said it was the first time X-rays had been seen coming from a so-called long-period radio transient, a rare object that cycles through radio signals over tens of minutes.

Given the uncertain distance, astronomers can’t tell if the weird object is associated with the supernova remnant or not. A single light-year is 5.8 trillion miles.

By MARCIA DUNN

Updated 5:21 PM GMT+2, May 28, 2025

https://archive.ph/PTnwG