Hypervelocity stars

Stars Getting Kicked out of the Milky Way can Help us map its Dark Matter Halo

Hypervelocity stars may allow us to map dark matter as they leave the Milky Way.

1 week ago

Astronomers Discover Hundreds of High-Velocity Stars, Many on Their Way Out of the Milky Way

Combining data from two of the largest databases in the world, an international team of astronomers was able to doubledthe…

11 months ago

This Star has been Kicked Out of the Milky Way. It Knows What It Did.

Every once in a while, the Milky Way ejects a star. The evicted star is typically ejected from the chaotic…

3 years ago

The Milky Way Could Be Spreading Life From Star to Star

A new study from the Harvard-Smithsonian Center for Astrophysics addresses the possibility of panspermia on a galactic (and intergalactic) scale

3 years ago

Gaia Sees Stars Out in Deep Space, Flying Between Galaxies

Based on Gaia's second data release, a team of astronomers from the Leiden Observatory have observed hyper-velocity stars that appear…

3 years ago

Determining the Mass of the Milky Way Using Hypervelocity Stars

Researchers from the Harvard Smithsonian Center for Astrophysics have devised a new way to measure the mass of our galaxy…

4 years ago

Chinese Astronomers Spot Two New Hypervelocity Stars

A team of Chinese astronomers has just discovered two new hypervelocity stars, a rare type of star that is still…

4 years ago

‘Lopsided’ Supernova Could Be Responsible for Rogue Hypervelocity Stars

Hypervelocity stars have been observed traversing the Galaxy at extreme velocities (700 km/s), but the mechanisms that give rise to such phenomena…

7 years ago

Hypervelocity Neutron Stars Crashing Into White Dwarfs — A Scenario for the Loneliest Supernovae?

It’s hard to comprehend the vast emptiness of space. Especially when we detect odd signatures, such as luminous explosions that…

7 years ago

“With a Little Help From Their Friends,” Magnetars Form in Binary Systems, New Study Suggests

Astronomy is a discipline of extremes. We’re constantly searching for the most powerful, the most explosive, and the most energetic…

8 years ago