This paper presents the development strategy for HWO-AGATE (Accurate Guiding and Astrometry Targeting Exoearths), a high-precision relative astrometry instrument concept designed for the future Habitable Worlds Observatory (HWO). The instrument is based on a gigapixel-class focal plane that incorporates the new generat...
F. Ardellier-Desages, J. Amiaux, J. Bobin et al.· Astronomical Telescopes + In...· 0 citations
This study presents an updated system analysis for an instrument onboard the Habitable Worlds Observatory (HWO), designed for high-precision, high-accuracy differential astrometry, with the primary scientific goal to determine the mass of Earth-like planets around the nearest Sun-like stars. The analysis integrates the...
J. Amiaux, Fabien Malbet, F. Ardellier-Desages et al.· Astronomical Telescopes + In...· 2 citations
Future space astrometry missions such as Theia and an astrometric mode of the Habitable Worlds Observatory (HWO) require detector calibration and instrumental characterization at an unprecedented level to achieve sub-micro-arcsecond precision. This work presents three complementary developments addressing these require...
M. Lizzana, Fabien Malbet, H. Rousset et al.· Astronomical Telescopes + In...· 0 citations
The detection of Earth-like exoplanets via astrometry necessitates centroiding precision at the 0.3 microarcsec level, thereby imposing stringent constraints on the focal plane geometry of space telescopes. The AGATE focal plane instrument, a proposed component of the NASA Habitable Worlds Observatory (HWO), aims to ac...
Hugo Rousset, É. Thiébaut, Chloé Rey et al.· X-Ray, Optical, and Infrared...· 0 citations
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