Two attempts to measure the masses of retired A-type stars give two different results.
A long-duration GRB was detected without its expected supernova companion. Today’s astrobite chronicles one team’s efforts to try and uncover the cause of GRB 111005A’s loneliness.
So far, Gravitational Lensing has allowed us to observe distant faint galaxies or supernovae. Its time to observe individual stars now.
Learn more about the Keynote Speakers at AAS 230 and their research!
Astronomers have found hydrogen contamination in the atmospheres of helium white dwarfs – but where in the world/universe is it coming from?! The authors of today’s astrobite perform statistical tests to see if the source of this pesky hydrogen could be water-bearing rocky bodies out in space.
Abundance analysis, or chemical tagging, is widely use to identify stars with a common birth. But is a similar abundance alone enough to identify siblings? Can’t stars have doppelgangers?