Ruffio, Jean-Baptiste

Combined from CaltechAUTHORS

• Finnerty, Luke and Fitzgerald, Michael P., el al. (2026) Possible Stratospheric Emission in the Warm Neptune GJ 436 b from High-resolution Spectroscopy; Astronomical Journal; Vol. 171; No. 4; 226; 10.3847/1538-3881/ae47fa
• Hsu, Chih-Chun and Wang 王, Jason J. 劲飞, el al. (2026) Distinct Rotational Evolution of Giant Planets and Brown Dwarf Companions; Astronomical Journal; Vol. 171; No. 4; 224; 10.3847/1538-3881/ae434b
• Xuan, Jerry W. and Ruffio, Jean-Baptiste, el al. (2026) The Compositions of the HR 8799 Planets Reflect Accretion of Both Solids and Metal-enriched Gas; Astrophysical Journal; Vol. 1000; No. 1; 27; 10.3847/1538-4357/ae448f
• Wang, Gavin and Xuan, Jerry W., el al. (2026) Chemical and Isotopic Homogeneity between the L Dwarf CD-35 2722 B and Its Early M Host Star; Astrophysical Journal; Vol. 997; No. 2; 195; 10.3847/1538-4357/ae232f
• Zhang 张, Jingwen 婧 雯 and Huber, Daniel, el al. (2026) Dynamical Architectures of S-type Transiting Planets in Binaries. II. A Dichotomy in Orbital Alignment of Small Planets in Close Binary Systems; Astronomical Journal; Vol. 171; No. 2; 77; 10.3847/1538-3881/ae2309
• Jones, Nathalie K. and Wang, Jason J., el al. (2025) HD 143811 AB b: A Directly Imaged Planet Orbiting a Spectroscopic Binary in Sco-Cen; Astrophysical Journal Letters; Vol. 995; No. 2; L41; 10.3847/2041-8213/ae2007
• Finnerty, Luke and Inglis, Julie, el al. (2025) The Watery Atmosphere of HD 209458 b Revealed by Joint K- and L-band High-resolution Spectroscopy; Astronomical Journal; Vol. 170; No. 4; 223; 10.3847/1538-3881/adfb71
• Horstman, Katelyn A. and Ruffio, Jean-Baptiste, el al. (2025) Fringing analysis and forward modeling of Keck Planet Imager and Characterizer (KPIC) spectra; Journal of Astronomical Telescopes, Instruments, and Systems; Vol. 11; No. 03; 035004; 10.1117/1.jatis.11.3.035004
• Finnerty, Luke and Xin, Yinzi, el al. (2025) Water Dissociation and Rotational Broadening in the Atmosphere of KELT-20 b from High-resolution Spectroscopy; Astronomical Journal; Vol. 169; No. 6; 333; 10.3847/1538-3881/adce02
• Xuan, Jerry W. and Perrin, Marshall D., el al. (2024) Atmospheric Abundances and Bulk Properties of the Binary Brown Dwarf Gliese 229Bab from JWST/MIRI Spectroscopy; Astrophysical Journal Letters; Vol. 977; No. 2; L32; 10.3847/2041-8213/ad92f9
• Horstman, Katelyn and Ruffio, Jean-Baptiste, el al. (2024) RV Measurements of Directly Imaged Brown Dwarf GQ Lup B to Search for Exosatellites; Astronomical Journal; Vol. 168; No. 4; 175; 10.3847/1538-3881/ad73d8
• Zhang, Yapeng and Xuan, Jerry W., el al. (2024) Atmospheric Characterization of the Super-Jupiter HIP 99770 b with KPIC; Astronomical Journal; Vol. 168; No. 3; 131; 10.3847/1538-3881/ad6609
• Xuan, Jerry W. and Hsu, Chih-Chun, el al. (2024) Are These Planets or Brown Dwarfs? Broadly Solar Compositions from High-resolution Atmospheric Retrievals of ∼10–30 M_(Jup) Companions; Astrophysical Journal; Vol. 970; No. 1; 71; 10.3847/1538-4357/ad4796
• Xuan, Jerry W. and Wang, Jason, el al. (2024) Validation of Elemental and Isotopic Abundances in Late-M Spectral Types with the Benchmark HIP 55507 AB System; Astrophysical Journal; Vol. 962; No. 1; 10; 10.3847/1538-4357/ad1243
• Finnerty, Luke and Xuan, Jerry W., el al. (2024) Atmospheric Metallicity and C/O of HD 189733 b from High-resolution Spectroscopy; Astronomical Journal; Vol. 167; No. 1; 43; 10.3847/1538-3881/ad1180
• Echeverri, Daniel and Xuan, Jerry, el al. (2023) Vortex fiber nulling for exoplanet observations: implementation and first light; Journal of Astronomical Telescopes, Instruments, and Systems; Vol. 9; No. 03; 035002; 10.1117/1.jatis.9.3.035002
• Xin, Yinzi and Xuan, Jerry, el al. (2023) On-sky speckle nulling through a single-mode fiber with the Keck Planet Imager and Characterizer; Journal of Astronomical Telescopes, Instruments, and Systems; Vol. 9; No. 03; 035001; 10.1117/1.jatis.9.3.035001
• Wilcomb, Kielan K. and Konopacky, Quinn M., el al. (2020) Moderate-resolution K-band Spectroscopy of Substellar Companion κ Andromedae b; Astronomical Journal; Vol. 160; No. 5; Art. No. 207; 10.3847/1538-3881/abb9b1
• Ren, Bin and Dong, Ruobing, el al. (2020) Dynamical Evidence of a Spiral Arm–driving Planet in the MWC 758 Protoplanetary Disk; Astrophysical Journal Letters; Vol. 898; No. 2; Art. No. L38; 10.3847/2041-8213/aba43e
• Ruffio, Jean-Baptiste and Macintosh, Bruce, el al. (2019) Radial Velocity Measurements of HR 8799 b and c with Medium Resolution Spectroscopy; Astronomical Journal; Vol. 158; No. 5; Art. No. 200; 10.3847/1538-3881/ab4594
• Mawet, Dimitri and Hirsch, Lea, el al. (2019) Deep Exploration of ϵ Eridani with Keck Ms-band Vortex Coronagraphy and Radial Velocities: Mass and Orbital Parameters of the Giant Exoplanet; Astronomical Journal; Vol. 157; No. 1; Art. No. 33; 10.3847/1538-3881/aaef8a
• Ruffio, Jean-Baptiste and Mawet, Dimitri, el al. (2018) A Bayesian Framework for Exoplanet Direct Detection and Non-detection; Astronomical Journal; Vol. 156; No. 5; Art. No. 196; 10.3847/1538-3881/aade95
• Ruffio, Jean-Baptiste and Millar-Blanchaer, Maxwell A., el al. (2017) Improving and Assessing Planet Sensitivity of the GPI Exoplanet Survey with a Forward Model Matched Filter; Astrophysical Journal; Vol. 842; No. 1; Art. No. 14; 10.3847/1538-4357/aa72dd