Author

J. Ruffio

3 papers indexed here

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Preprint Sep 2026

Astrometric Evidence for Outer Giant Planets in Known Exoplanet Systems

Outer giant planets can influence the formation and dynamical evolution of their planetary systems. However, their long orbital periods make them difficult to detect using transit and radial velocity (RV) techniques. Measurements from Hipparcos, Gaia DR2 and DR3 (G23H) can detect the stellar reflex motion induced by di...

Ó. ClarissaR.Do, William Thompson, Dori Blakely et al. · 0 citations

Open access Aug 2026

Impacts of Correlated Noise on Retrievals of Exo-Earth Atmospheres

The Habitable Worlds Observatory (HWO) aims to accomplish high-contrast imaging and spectroscopy of true Earth analogs for the first time. However, high-contrast spectroscopy with HWO may be limited by residual speckles, which persist after deformable mirror correction and postprocessing, hindering atmospheric characte...

N. Wolff, Bruce A. Macintosh, Tyler D. Robinson et al. · Astronomical Journal · 0 citations

Review Sep 2026

The Dyn-Atmo Survey: JWST/NIRSpec spectroscopy of dynamical benchmark GJ 758 B

We present new JWST/NIRSpec IFU high contrast spectroscopic observations of the brown dwarf companion GJ 758 B. Extensive radial velocity monitoring of the primary has enabled high-precision measurements of the companion mass through characterization of their joint orbital dynamics. The combination of prior space- and...

Alexander Madurowicz, E. Rickman, D. Gagliuffi et al. · 0 citations