SETI on the Side: Seeking Dyson Spheres with Gaia
Could Gaia’s immense catalog of stellar positions help us find extraterrestrial intelligence?
Clearing up the Redshifts of Obscured AGNs
The redshifts of active galactic nuclei (AGNs) can help us piece together the universe’s evolutionary timeline. Unfortunately, measuring these redshifts can be pretty tricky. In today’s astrobite, we look at a trick for estimating and constraining the redshifts of AGNs that are – ironically enough – partially obscured from our view.
Astrobites at ASA: Astronomy Down Under!
The annual meeting of the Astronomical Society of Australia happened last week; here’s a short summary of some of the incredible science happening Down Under!
A white dwarf kicked out of a supernova
A hypervelocity white dwarf might be left over from a Type Ia supernova. Today’s paper studies the white dwarf in detail.
One Magnified Starburst Galaxy
Astronomers study a gravitationally lensed emission line galaxy, with implications for the characteristics of early galaxy populations.
Deep Spectra with PEPSI
The new high-resolution, hydra-headed PEPSI spectrograph is now in operation. One of the first targets it investigated is an ancient, planet-hosting star.