A Binary Companion to a Be Star
A star that spins fast enough to throw off its atmosphere, and a hint at how it got that way.
The Curious Case of Planetary Nebulae in Globular Clusters
Planetary nebulae where they shouldn’t be–how did they get there?
More White Dwarfs, More Whales
Today we look at a polluted white dwarf in a binary system: by calculating how many sperm whales accrete onto the white dwarf each second, can we say anything about planet formation?
AR Sco — The First White Dwarf Pulsar
New polarisation data confirms that pulsations from a white dwarf system are powered by the same process that causes pulsars.
The True Colours of a Blue Straggler
There’s an unexpected population of blue stars identified in clusters, known as blue stragglers. They should have evolved off the main sequence, but some rejuvenating process is in action, keeping them there longer than expected. Their origin and evolution is not fully understood. Today’s paper tackles these two issues, identifying some possible answers as to where these blue straggler stars come from and where they are going.
Image credits: ESA/Hubble
Settling the Proxima Centauri Question
Are Proxima Centauri and Alpha Centauri part of the same system?