News tagged with astrophysical journal letters

New and improved way to find baby planets

New work from an international team of astronomers including Carnegie's Jaehan Bae used archival radio telescope data to develop a new method for finding very young extrasolar planets. Their technique successfully confirmed ...

dateJun 14, 2018 in Astronomy
shares11 comments 0

New GAIA data reveals mergers in Milky Way

University of Groningen astronomers have discovered relics of merger events in the Milky Way halo. Five small groups of stars appear to represent mergers with smaller galaxies, while a big 'blob' comprising hundreds of stars ...

dateJun 13, 2018 in Astronomy
shares267 comments 1

When do aging brown dwarfs sweep the clouds away?

Brown dwarfs, the larger cousins of giant planets, undergo atmospheric changes from cloudy to cloudless as they age and cool. A team of astronomers led by Carnegie's Jonathan Gagné measured for the first time the temperature ...

dateFeb 27, 2018 in Astronomy
shares64 comments 3

Proxima Centauri's no good, very bad day

A team of astronomers led by Carnegie's Meredith MacGregor and Alycia Weinberger detected a massive stellar flare—an energetic explosion of radiation—from the closest star to our own Sun, Proxima Centauri, which occurred ...

dateFeb 26, 2018 in Astronomy
shares486 comments 17