5 papers
CO and potential variability in Pictoris b with GRAVITY+
Antonia von Stauffenberg, Jonas Sauter, Paul Mollière +18
The CO/CO ratio was introduced as an indicator for where in the disk a planet has formed. Previously a lower value compared to the host star's was suggested to show t…
Distinct Rotational Evolution of Giant Planets and Brown Dwarf Companions
Chih-Chun Hsu, Jason J. Wang, Jerry W. Xuan +27
We present a rotational velocity (vsini) survey of 32 stellar/substellar objects and giant planets using Keck/KPIC high-resolution spectroscopy, including 6 giant planets (2-7 M$_\…
An Ancient Brown Dwarf Transiting a Metal-Poor Thick Disk Star
Jéa Adams Redai, Vedant Chandra, Samuel W. Yee +20
We report the discovery of TOI-7019b, the first transiting brown dwarf (BD) known to orbit a star that is part of the Milky Way's ancient thick disk, as defined chemically ([Fe/H]…
True mass and atmospheric composition of the non-transiting hot Jupiter HD 143105 b
Luke Finnerty, Yinzi Xin, Jerry W. Xuan +28
We present Keck/KPIC phase II -band observations of the non-transiting hot Jupiter HD 143105 b. Using a cross-correlation approach, we make the first detection of the planetary…
Exoplanet Imaging Data Challenge, phase II: Comparison of algorithms in terms of characterization capabilities
Faustine Cantalloube, Valentin Christiaens, Carles Cantero Mitjans +15
In this communication, we report on the results of the second phase of the Exoplanet Imaging Data Challenge started in 2019. This second phase focuses on the characterization of po…