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astro-ph.SR2026
LACHESIS: Robust stellar parameters through Bayesian model averaging of isochrone grids
Jose I. Vines, Austin T. Ware
Accurate stellar parameters underpin much of astrophysics, from exoplanetary systems to Galactic archaeology. For isolated field stars, masses and especially ages are usually infer…
astro-ph.SR2026
The Companions to B and A Stars Snapshot (C-BASS) Survey: I. Discovery of a Young Brown Dwarf Companion to HIP 17453
Marah Brinjikji, Adam J. Smith, Jennifer Patience +26
We report the detection of a new brown dwarf companion to HIP 17453 A, a chemically peculiar A0V star located at a distance of 81 pc. HIP 17453 A was observed with high-resolution…
astro-ph.SR2026
The HAges Catalog: Stellar Ages for High Priority HWO Target Stars
Austin T. Ware, Katelyn Ruppert, Patrick A. Young
Precise stellar ages (uncertainties Gyr, or at solar age) are required to discern evolutionary trends in atmospheric biosignatures of terrestrial habitable…