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UrduA Hubble telescope survey has found that brown dwarfs—objects smaller than stars but bigger than planets—live a lonely life as they age. Over time they lose the companion brown dwarf that was born alongside them and the objects drift their separate ways.
Tag: binary stars
Direct evidence for modified gravity at low acceleration from Gaia observations of wide binary stars
A new study reports conclusive evidence for the breakdown of standard gravity in the low acceleration limit from a verifiable analysis of the orbital motions of long-period, widely separated, binary stars, usually referred to as wide binaries in astronomy and astrophysics.
The seven-year photobomb: Distant star’s dimming was likely a ‘dusty’ companion getting in the way, astronomers say
Astronomers discovered that the star Gaia17bpp gradually brightened over a 2 1/2-year period. But follow-up analyses revealed that the star itself wasn’t changing. Instead, it’s likely part of a rare type of binary system. Its apparent brightening was the end of a years-long eclipse by an unusual, “dusty” stellar companion.
Study: Without more data, a black hole’s origins can be “spun” in any direction
Clues to a black hole’s origins can be found in the way it spins. This is especially true for binaries, in which two black holes circle close together before merging.