2 papers
astro-ph.EP2024
MO0NFALL: The Great Filter and Exo-Moon Occurrence
Casey Brinkman, Keyan Gootkin, Rena A. Lee +3
We observe neither life beyond Earth, nor moons around exoplanets, despite the prevalence of Earth-like planets across the galaxy. We suggest Moonfall as a possible mechanism to ex…
astro-ph.SR2024
The California Legacy Survey V. Chromospheric Activity Cycles in Main Sequence Stars
Howard Isaacson, Andrew W. Howard, Benjamin Fulton +31
We present optical spectroscopy of 710 solar neighborhood stars collected over twenty years to catalog chromospheric activity and search for stellar activity cycles. The California…