Title: Dynamical and Atmospheric Characterization of the Substellar Companion HD 33632
Ab from Direct Imaging, Astrometry, and Radial-Velocity Data
Abstract:
We present follow-up observations of the directly imaged brown dwarf companion HD 33632 Ab, using SCExAO/CHARIS H and K-band (R = 70) high-contrast integral field spectroscopy, along with photometry from Keck/NIRC2. Additionally, we added new radial velocity measurements from the SOPHIE spectrograph and astrometric data from Hipparcos and Gaia. These data significantly enhance spectral characterization over the lower-resolution spectra presented in the discovery paper, allowing us to establish more robust constraints on the companion's atmospheres, orbits, and dynamical masses. Consequently, HD 33632 Ab emerged as a key target for future investigations with the James Webb Space Telescope and the Roman Space Telescope.
Speaker:
Mona El Morsy (UT San Antonio)
