activity
20232026
most citedAtmospheric retrievals suggest the presence of a secondary atmosphere and possible sulfur species on L 98-59 d from JWST NIRSpec G395H transmission spectroscopy

44 citations · 77 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.EP2026

Phase-dependent chemistry of WASP-43 b revealed with a suite of one-, two-, and three-dimensional models

Robin Baeyens, Julianne I. Moses, Jasmina Blecic +17

Our goal is to investigate the chemistry of the hot Jupiter WASP-43 b in detail using theoretical models, considering the constraints of the James Webb Space Telescope MIRI phase c…

astro-ph.IM2025★ 4 cited

archNEMESIS: an open-source Python package for analysis of planetary atmospheric spectra

Juan Alday, Joseph Penn, Patrick G. J. Irwin +2

ArchNEMESIS is an open-source Python package developed for the analysis of remote sensing spectroscopic observations of planetary atmospheres. It is based on the widely used NEMESI…

astro-ph.EP2024

JWST/NIRISS and HST: Exploring the improved ability to characterise exoplanet atmospheres in the JWST era

Chloe Fisher, Jake Taylor, Vivien Parmentier +6

The Hubble Space Telescope has been a pioneering instrument for studying the atmospheres of exoplanets, specifically its WFC3 and STIS instruments. With the launch of JWST, we are…

astro-ph.EP2024★ 44 cited

Atmospheric retrievals suggest the presence of a secondary atmosphere and possible sulfur species on L 98-59 d from JWST NIRSpec G395H transmission spectroscopy

Agnibha Banerjee, Joanna K. Barstow, Amélie Gressier +10

L 98-59 d is a Super-Earth planet orbiting an M-type star. We performed retrievals on the transmission spectrum of L 98-59 d obtained using NIRSpec G395H during a single transit, f…

astro-ph.EP2024

NEMESISPY: A Python package for simulating and retrieving exoplanetary spectra

Jingxuan Yang, Juan Alday, Patrick Irwin

NEMESISPY is a Python package developed to perform parametric atmospheric modelling and radiative transfer calculation for the retrievals of exoplanetary spectra. It is a recent de…

astro-ph.EP2024

Latitudinal Asymmetry in the Dayside Atmosphere of WASP-43b

Ryan C. Challener, Zafar Rustamkulov, Elspeth K. H. Lee +9

We present two-dimensional near-infrared temperature maps of the canonical hot Jupiter WASP-43b using a phase-curve observation with JWST NIRSpec/G395H. From the white-light planet…

astro-ph.EP2024

Simultaneous retrieval of orbital phase resolved JWST/MIRI emission spectra of the hot Jupiter WASP-43b: evidence of water, ammonia and carbon monoxide

Jingxuan Yang, Mark Hammond, Anjali A. A. Piette +14

Spectroscopic phase curves of hot Jupiters measure their emission spectra at multiple orbital phases, thus enabling detailed characterisation of their atmospheres. Precise constrai…

astro-ph.EP2024

Two-Dimensional Eclipse Mapping of the Hot Jupiter WASP-43b with JWST MIRI/LRS

Mark Hammond, Taylor J. Bell, Ryan C. Challener +21

We present eclipse maps of the two-dimensional thermal emission from the dayside of the hot Jupiter WASP-43b, derived from an observation of a phase curve with the JWST MIRI/LRS in…

astro-ph.IM2024★ 27 cited

Data availability and requirements relevant for the Ariel space mission and other exoplanet atmosphere applications

Katy L. Chubb, Séverine Robert, Clara Sousa-Silva +52

The goal of this white paper is to provide a snapshot of the data availability and data needs primarily for the Ariel space mission, but also for related atmospheric studies of exo…

astro-ph.EP2023★ 2 cited

Testing 2D temperature models in Bayesian retrievals of atmospheric properties from hot Jupiter phase curves

Jingxuan Yang, Patrick G. J. Irwin, Joanna K. Barstow

Spectroscopic phase curves of transiting hot Jupiters are spectral measurements at multiple orbital phases, giving a set of disc-averaged spectra that probe multiple hemispheres. B…