A Stellar ‘Light Switch’ Orbiting a Black Hole
Today’s authors investigate the sudden re-appearance of X-ray emission from a star being eaten by a supermassive black hole!
Could Stripped Stars be False Positives in the Search for the Missing Black Holes?
The authors of today’s article argue that stripped B-type stars could be a source of false positives in the search for quiet, stellar-mass black holes in the Milky Way
Diffusion and depletion of carbon monoxide in disks
Where is the missing carbon monoxide in protoplanetary disks? Today’s paper suggests that it might have something to do with turbulent mixing in disks as well as the physics of condensation.
Pulling Back the Curtain on the Formation of the First Supermassive Black Holes
How do supermassive black holes get to be so supermassive? Today’s authors explore how we might be able to answer that question with the SKA pulsar timing array!
Minutes after Death, Reincarnation Can Begin
The authors of today’s paper simulate in impeccable detail the first few minutes of a binary-driven hypernova (the brighter cousin of a supernova) while paying close attention to how the dynamics affect the companion neutron star. They predict several observables from the process, including what has been observed in the gamma ray burst event GRB 190829A.
Twinkle Twinkle Little Satellite? Characterising the Impact of Satellite Constellations
Satellite constellations are changing ground-based astronomy with every new launch. How can we quantify their impacts, and can anything be done to mitigate them?