All-Sky Near Infrared Space Astrometry
Barbara McArthur, David Hobbs, Erik H{\o}g, Valeri Makarov, Alessandro, Sozzetti, Anthony Brown, Alberto Krone Martins, Jennifer Lynn Bartlett, John, Tomsick, Mike Shao, Fritz Benedict, Eduardo Bendek, Celine Boehm, Charlie, Conroy, Johan Peter Uldall Fynbo, Oleg Gnedin
TL;DR
This paper proposes an all-sky near-infrared space observatory to complement Gaia, enabling high-precision astrometry in obscured regions of the Galaxy inaccessible to optical instruments.
Contribution
It introduces the concept of a dedicated NIR space observatory to achieve microarcsecond astrometry in regions hidden from optical surveys like Gaia.
Findings
Potential to map obscured Galactic regions with high precision
Enhances understanding of Galactic internal dynamics
Provides complementary data to optical astrometry missions
Abstract
Gaia is currently revolutionizing modern astronomy. However, much of the Galactic plane, center and the spiral arm regions are obscured by interstellar extinction, rendering them inaccessible because Gaia is an optical instrument. An all-sky near infrared (NIR) space observatory operating in the optical NIR, separated in time from the original Gaia would provide microarcsecond NIR astrometry and millimag photometry to penetrate obscured regions unraveling the internal dynamics of the Galaxy.
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Taxonomy
TopicsAstronomy and Astrophysical Research · Stellar, planetary, and galactic studies