The Sun and other stars are magnetic: magnetism pervades their interiors and affects their
evolution in a variety of ways. In the Sun, both the fields themselves and their influence on …

After decades of fast-paced technical advances, optical/infrared (O/IR) interferometry has
seen a revolution in recent years:▪ The GRAVITY instrument at the Very Large Telescope …

All-sky photometric time-series missions have allowed for the monitoring of thousands of
young (t age< 800 Myr) stars in order to understand the evolution of stellar activity. Here, we …

Abstract Michigan InfraRed Combiner-eXeter (MIRC-X) is a new highly sensitive six-
telescope interferometric imager installed at the CHARA Array that provides an angular …

One-dimensional stellar evolution models have been successful at representing the
structure and evolution of stars in diverse astrophysical contexts, but complications have …

The orientation between a star's spin axis and a planet's orbital plane provides valuable
information about the system's formation and dynamical history. For non-transiting planets at …

Ages and masses of young stars are often estimated by comparing their luminosities and
effective temperatures to pre-main-sequence stellar evolution tracks, but magnetic fields and …

Abstract Study Analysis Group 21 (SAG21) of NASA's Exoplanet Exploration Program
Analysis Group was organized to study the effect of stellar contamination on space-based …

We use TESS full-frame imaging data to investigate the angular momentum evolution of
young stars in the Orion Complex. We confirm recent findings that stars with rotation periods …

Context. Both dynamo theory and observations of stellar large-scale magnetic fields suggest
a change from nearly axisymmetric configurations at solar rotation rates to nonaxisymmetric …