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Exploring nine simultaneously occurring transients on April 12th 1950. [PDF]

open access: yesSci Rep, 2021
Villarroel B   +8 more
europepmc   +1 more source

Astrometry as a Tool for Discovering and Weighing Faint Companions to Nearby Stars [PDF]

open access: yesarXiv
This tutorial covers the use of absolute astrometry, in particular from the combination of the Hipparcos and Gaia missions, to identify faint companions to nearby stars and to measure the masses and orbits of those companions. Absolute astrometry has been used with increasing success to discover new planets and brown dwarfs and to measure masses and ...
arxiv  

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