activity
20222026
most citedEarly Release Science of the Exoplanet WASP-39b with JWST NIRSpec G395H

274 citations · 291 across the 10 of their papers we have counts for

collaborators

12 papers

astro-ph.EP2026

Science-Driven Performance Requirements for UV Coronagraph Design: Implications for O Detection in Earth-like Atmospheres

Amber V. Young, Giada Arney, Shawn Domagal-Goldman +6

Detecting biosignatures on Earth-like exoplanets from the Proterozoic era requires instrumentation capable of probing near-ultraviolet (NUV) spectral features, particularly ozone (…

astro-ph.EP2026

The Science Potential of Characterizing Gas Giant Exoplanets with HWO

Beck Dacus, Jean-Baptiste Ruffio, Quinn Konopacky +19

With the ability to directly image Earth-like exoplanets and search their atmospheres for biosignatures, the upcoming Habitable Worlds Observatory (HWO) will also collect high sign…

astro-ph.EP2026

Formation and evolution pathways of planets. I. Comparison between theory and observations

Yasuhiro Hasegawa, Renyu Hu, Amine Bouzerzour

Discoveries of numerous exoplanets by various methods enable detailed characterization including bulk density. Formation and evolution pathways of planets can thus be probed in the…

astro-ph.EP2026★ 1 cited

Retrieving the Red Edge on Earth-like Planets with Heterogeneous Clouds and Surfaces

Zachary Burr, Mario Damiano, Vincent Kofman +2

The detection and characterization of potentially habitable exoplanets is one of the chief goals of astrophysics for the coming decades. Imaging in reflected light is well suited f…

astro-ph.IM2025

Identifying rocky planets and water worlds among sub-Neptune-sized exoplanets with the Habitable Worlds Observatory

Renyu Hu, Michiel Min, Max Millar-Blanchaer +15

Astronomers are debating whether the plentiful "sub-Neptune" exoplanets -- worlds a bit larger than Earth but smaller than Neptune -- are predominantly rocky planets, water-rich "o…

astro-ph.EP2025

Volcanic Satellites Tidally Venting Na, K, SO2 in Optical & Infrared Light

Apurva V. Oza, Andrea Gebek, Moritz Meyer zu Westram +19

Recent infrared spectroscopy from the James Webb Space Telescope (JWST) has spurred analyses of common volcanic gases such as carbon dioxide (CO2), sulfur dioxide (SO2), alongside…

astro-ph.EP2025★ 3 cited

Coupled 1D Chemical Kinetic-Transport and 2D Hydrodynamic Modeling Supports a modest 1-1.5x Supersolar Oxygen Abundance in Jupiter's Atmosphere

Jeehyun Yang, Ali Hyder, Renyu Hu +1

Understanding the deep atmospheric composition of Jupiter provides critical constraints on its formation and the chemical evolution of the solar nebula. In this study, we combine o…

astro-ph.EP2025★ 3 cited

A water-rich interior in the temperate sub-Neptune K2-18 b revealed by JWST

Renyu Hu, Aaron Bello-Arufe, Armen Tokadjian +7

Temperate sub-Neptunes are compelling targets for detecting liquid-water oceans beyond the Solar System. If water-rich and lacking massive hydrogen-helium envelopes, these planets…

astro-ph.EP2024★ 10 cited

HWO Yield Sensitivities in the NIR and NUV

Rhonda Morgan, Dmitry Savransky, Michael Turmon +6

Habitable Worlds Observatory (HWO) will search for biosignatures from Earth-size exoplanets in the habitable zones of nearby stars. The wavelength range for biosignatures used by t…

astro-ph.EP2024

The Detectability of CH/CO/CO and NO Biosignatures through Reflection Spectroscopy of Terrestrial Exoplanets

Armen Tokadjian, Renyu Hu, Mario Damiano

The chemical makeup of Earth's atmosphere during the Archean (4 Ga-2.5 Ga) and Proterozoic eon (2.5 Ga-0.5 Ga) contrast considerably with the present-day: the Archean was rich in c…

astro-ph.IM2024

Starshade Exoplanet Data Challenge: What We Learned

Mario Damiano, Stuart Shaklan, Renyu Hu +6

Starshade is one of the technologies that will enable the observation and characterization of small planets around nearby stars through direct imaging. The Starshade Exoplanetary D…

astro-ph.EP2022★ 274 cited

Early Release Science of the Exoplanet WASP-39b with JWST NIRSpec G395H

Lili Alderson, Hannah R. Wakeford, Munazza K. Alam +89

Measuring the abundances of carbon and oxygen in exoplanet atmospheres is considered a crucial avenue for unlocking the formation and evolution of exoplanetary systems. Access to a…