activity
20172026
most citedA Sub-Neptune Exoplanet with a Low-Metallicity Methane-Depleted Atmosphere and Mie-Scattering Clouds

238 citations · 1.8k across the 71 of their papers we have counts for

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Showing 2025Show all

18 papers · 1 filter

astro-ph.EP2025

A High-Resolution NUV Transmission Spectrum of KELT-9b: Mg II and Fe II Escaping from the Hottest Known Giant Planet

Austin Baldwin, Joshua D. Lothringer, Leonardo A. Dos Santos +5

We present high-resolution NUV observations from Hubble Space Telescope's (HST) Space Telescope Imaging Spectrograph (STIS) data for the hottest known gas planet, KELT-9b. Observat…

astro-ph.EP2025

A Comprehensive Analysis of the Panchromatic Transmission Spectrum of the Hot-Saturn WASP-96 b: Nondetection of Haze, Possible Sodium Limb Asymmetry, Stellar Characterization, and Formation History

Le-Chris Wang, Zafar Rustamkulov, David K. Sing +4

We conduct a reanalysis of the JWST NIRISS/SOSS observation of the hot-Saturn WASP-96 b. Initial analysis of this data revealed an enhanced Rayleigh scattering slope at the blue en…

astro-ph.EP2025

The Library of Exoplanet Atmospheric Composition Measurements: Population Level Trends in Exoplanet Composition with ExoComp

Joshua D. Lothringer, Nataliea Lowson, Guangwei Fu

The present-day bulk elemental composition of an exoplanet can provide insight into a planet's formation and evolutionary history. Such information is now being measured for dozens…

astro-ph.EP2025

Heat Reveals What Clouds Conceal: Global Carbon & Longitudinally Asymmetric Chemistry on LTT 9779 b

Reza Ashtari, Sean Collins, Jared Splinter +17

LTT-9779 b is an ultra-hot Neptune (Rp ~ 4.7 Re, Mp ~ 29 Me) orbiting its Sun-like host star in just 19 hours, placing it deep within the "hot Neptune desert," where Neptunian plan…

astro-ph.EP2025

Mapping the SO2 Shoreline in Gas Giant Exoplanets

Ian J. M. Crossfield, Eva-Maria Ahrer, Jonathan Brande +8

JWST has revealed sulfur chemistry in giant exoplanet atmospheres, where molecules such as SO2 trace photochemistry, metallicity, and formation and migration. To ascertain the cond…

astro-ph.EP2025★ 7 cited

Strong NUV Refractory Absorption and Dissociated Water in the Hubble Transmission Spectrum of the Ultra Hot Jupiter KELT-20 b

Yayaati Chachan, Joshua Lothringer, Julie Inglis +8

Ultra hot Jupiters (UHJs) present a promising pathway for drawing a link between a planet's composition and formation history. They retain both refractory and volatiles species in…