VP
Vivien Parmentier
astro-ph.EPastro-ph.SRastro-ph.IMExoplanetsatmospheresAtmospheric chemistryAtmospheric dynamicsexoplanetsJWSTplanet formation
On Valency
published · living versionsW_jrysjanm·v1 · currentpublished
A Model to Map Brown Dwarf Companions to White Dwarfs in Partial Secondary Eclipse
with Arthur D. Adams, Yifan Zhou, Daniel Apai, Daphne Broski-Laing +7
1 version
Preprints & journals
168 papers in the corpus · 2009–2026Dynamically Coupled Three-dimensional Cloud-Chemistry in Rapidly Rotating Irradiated Atmospheres: an Application to the Compact White Dwarf-Brown Dwarf system ZTFJ0038+20302610.17714v1 · Yanhong Lai, Xianyu Tan, Daphne Broski-Laing et al.2026 · 0 citationsarXiv
Cool, Cloudy Nights on an Ultrahot Neptune: A Panchromatic NIRISS/NIRSpec Transmission Spectrum of LTT 9779 b2609.36206v1 · Sarah Stamer, Diana Dragomir, Annabella Meech et al.2026 · 0 citationsarXiv
Inhomogeneous Cloud Coverage and Altitude-Dependent Heat Transport on the Hot-Jupiter NGTS-10 Ab from its Optical-to-Infrared Phase Curve2609.16115v1 · Louis-Philippe Coulombe, Vivien Parmentier, Kevin B. Stevenson et al.2026 · 0 citationsarXiv
Phase-curve approach to study atmospheric flows in hot Jupiters2608.03406v1 · D. Shulyak, W. Dietrich, V. Parmentier et al.2026 · 0 citationsarXiv
A parameterised approach to disequilibrium retrievals in the JWST era: Application to NIRCam observations of HD 189733b2607.06491v1 · Jake Taylor, Shang-Min Tsai, Vivien Parmentier et al.2026 · 0 citationsMon Not R Astron Soc (2026)
The EXoplanet Climate Infrared TElescope (EXCITE): A balloon-borne mission to measure spectroscopic phase curves of transiting hot Jupiters.42474329 · Rehm, T D, Altermatt, C, Bernard, L et al.2026 · 0 citationsThe Review of scientific instruments. 2026;97(7)
Asymmetric nightside CO2 features, inefficient heat transport, and precise evolutionary constraints: Spectroscopic phase curves reveal the past and present of a white dwarf-brown dwarf binary2606.30112v2 · Daphne Broski-Laing, Yifan Zhou, Joshua D. Lothringer et al.2026 · 0 citationsThe Astrophysical Journal, Volume 1009, Issue 2, id.177, 26 pp. (2026)
Glossy Silicate Clouds on the Scorched Dayside of LTT9779b2606.26075v1 · Suman Saha, James S. Jenkins, Jonathan Brande et al.2026 · 0 citationsarXiv
C, N, O, S, and photochemistry in a temperate giant planet orbiting a late M dwarf2606.23774v3 · Michael Zhang, Qiao Xue, Jeehyun Yang et al.2026 · 1 citationarXiv
Photochemical Production of CS2 in Temperate-to-Warm Gas Giant Exoplanet Atmospheres2606.23820v2 · Jeehyun Yang, Vighnesh Nagpal, Michael Zhang et al.2026 · 0 citationsarXiv
Magnetic field strengths of hot giant exoplanets consistent with Solar System values2606.22455v1 · Julia V. Seidel, Vivien Parmentier, Bibiana Prinoth et al.2026 · 4 citationsarXiv
Atmospheric asymmetries in WASP-121 b revealed by rotational transits detected with JWST2606.19487v1 · Cyril Gapp, Aur'elien Falco, Thomas M. Evans-Soma et al.2026 · 1 citationarXiv
A population view of transiting hot giant exoplanets: Tracing Fe and Ti chemistry with ESPRESSO and MAROON-X2606.14490v1 · Bibiana Prinoth, Vivien Parmentier, Stefan Pelletier et al.2026 · 0 citationsarXiv
The Roasting Marshmallows Program with IGRINS on Gemini South V: Atmosphere of MASCARA-1b is Enriched in Refractory Elements2606.07497v1 · Krishna Kanumalla, Michael R. Line, Martina Chiarella et al.2026 · 1 citationarXiv
The CRIMSON survey I: super-stellar SiO in the directly imaged companion TWA 5 B from high-resolution M-band spectroscopy2606.03824v1 · Luke T. Parker, Jayne L. Birkby, Siddharth Gandhi et al.2026 · 0 citationsarXiv
Towards Doppler eclipse mapping of hot Jupiters. An observational perspective on WASP-33 b with SPIRou2605.22931v1 · Vincent Yariv, Xavier Bonfils, Nicolas Cowan et al.2026 · 0 citationsarXiv
HAT-P-70b through the Eyes of MAROON-X: Constraining Elemental Abundances of Metals and Insights on Atmosphere Dynamics2605.07873v1 · Shi Lin Sun, Stefan Pelletier, Bjorn Benneke et al.2026 · 1 citationarXiv
Horizontal transport as a source of disequilibrium chemistry on the nightside of a hot exoplanet2605.04936v1 · Vivien Parmentier, Kevin B. Stevenson, Luis Welbanks et al.2026 · 3 citationsNat Astron (2026)
The Days Drag On on WASP-121 b: Interpreting its NIRISS Spectroscopic Phase Curve with General Circulation Models2605.01589v1 · Robert C. Frazier, Emily Rauscher, Jared Splinter et al.2026 · 1 citationarXiv
The tale of the 3 planets: 3D cloud feedback enhances the spectral diversity of warm Jupiters2604.26911v1 · Nishil Mehta, Vivien Parmentier, Xianyu Tan et al.2026 · 0 citationsarXiv
The Identification of CS2 and Evidence for Carbon-Sulfur Chemical Coupling in a Warm Giant Exoplanet Atmosphere2604.13168v3 · Anastasia Triantafillides, Thomas G. Beatty, Matthew C. Nixon et al.2026 · 1 citationarXiv
A Stellar magnesium to silicon ratio in the atmosphere of an exoplanet.41708629 · Sanchez, Jorge A, Smith, Peter C B, Kanumalla, Krishna et al.2026 · 5 citationsNature communications. 2026;17(1)
A Comparison of 1D and 3D Exoplanet Atmosphere Model Grids: ScCHIMERA and the SPARC/MITgcm2512.14882v1 · Lindsey S. Wiser, Alexander Roth, Vivien Parmentier et al.2025 · 4 citationsarXiv
No TiO detected in the hot Neptune-desert planet LTT-9779 b in reflected light at high spectral resolution2511.08691v1 · Sophia R. Vaughan, Jayne L. Birkby, Natasha E. Batalha et al.2025 · 4 citationsarXiv
Heat Reveals What Clouds Conceal: Global Carbon & Longitudinally Asymmetric Chemistry on LTT 9779 b2510.04863v1 · Reza Ashtari, Sean Collins, Jared Splinter et al.2025 · 0 citationsarXiv
Cloudy solutions for the clear skies of WASP-80b: 3D cloud feedback on the atmosphere and spectra of a warm Jupiter2509.23406v3 · Nishil Mehta, Vivien Parmentier, Xianyu Tan et al.2025 · 2 citationsA&A 707, A394 (2026)
A precise metallicity and carbon-to-oxygen ratio for a warm giant exoplanet from its panchromatic JWST emission spectrum.40982673 · Wiser, Lindsey S, Bell, Taylor J, Line, Michael R et al.2025 · 11 citationsProceedings of the National Academy of Sciences of the United States of America. 2025;122(39):e2416193122
The Roasting Marshmallows Program with IGRINS on Gemini South III: Seeing deeper into the metal depleted atmosphere of a gas-giant on the cusp of the hot to ultra-hot Jupiter transition2507.07204v1 · Vatsal Panwar, Matteo Brogi, Krishna Kanumalla et al.2025 · 1 citationarXiv
A High Geometric Albedo for LTT9779b Points Towards a Metal-rich Atmosphere and Silicate Clouds2506.17550v1 · Suman Saha, James S. Jenkins, Vivien Parmentier et al.2025 · 7 citationsA&A 700, A45 (2025)
A Panchromatic Characterization of the Evening and Morning Atmosphere of WASP-107 b: Composition and Cloud Variations, and Insight into the Effect of Stellar Contamination2505.13602v1 · Matthew M. Murphy, Thomas G. Beatty, Everett Schlawin et al.2025 · 13 citationsAJ 170 61 (2025)
Challenges in the detection of gases in exoplanet atmospheres2504.21788v3 · Luis Welbanks, Matthew C. Nixon, Peter McGill et al.2025 · 22 citationsarXiv
Clouds and Hazes in GJ 1214b's Metal-Rich Atmosphere2503.22608v1 · Isaac Malsky, Emily Rauscher, Kevin Stevenson et al.2025 · 14 citationsarXiv
The radiative effects of photochemical hazes on the atmospheric circulation and phase curves of sub-Neptunes2503.22642v1 · Maria E. Steinrueck, Vivien Parmentier, Laura Kreidberg et al.2025 · 5 citationsarXiv
Low 4.5 {\mu}m Dayside Emission Disfavors a Dark Bare-Rock scenario for the Hot Super-Earth TOI-431 b2503.09698v1 · Christopher Monaghan, Pierre-Alexis Roy, Bjorn Benneke et al.2025 · 9 citationsarXiv
Constraining the Scattered Light properties of LTT 9779 b Using HST/WFC3 UVIS2503.05581v1 · Michael Radica, Jake Taylor, Hannah R. Wakeford et al.2025 · 6 citationsarXiv
Characterization of AF Lep b at high spectral resolution with VLT/HiRISE2502.19558v1 · A. Denis, A. Vigan, J. Costes et al.2025 · 14 citationsarXiv
A JWST Panchromatic Thermal Emission Spectrum of the Warm Neptune Archetype GJ 436b2502.17418v1 · Sagnick Mukherjee, Everett Schlawin, Taylor J. Bell et al.2025 · 27 citationsarXiv
Vertical structure of an exoplanet's atmospheric jet stream.39965655 · Seidel, Julia V, Prinoth, Bibiana, Pino, Lorenzo et al.2025 · 31 citationsNature. 2025;639(8056):902-908
Titanium chemistry of WASP-121 b with ESPRESSO in 4-UT mode2502.12262v1 · B. Prinoth, J.V. Seidel, H.J. Hoeijmakers et al.2025 · 18 citationsarXiv
From pre-transit to post-eclipse: investigating the impact of 3D temperature, chemistry, and dynamics on high-resolution emission spectra of the ultra-hot Jupiter WASP-76b2502.01606v3 · Joost P. Wardenier, Vivien Parmentier, Elspeth K. H. Lee et al.2025 · 12 citationsarXiv
Highly reflective white clouds on the western dayside of an exo-Neptune2501.14016v1 · Louis-Philippe Coulombe, Michael Radica, Bjorn Benneke et al.2025 · 39 citationsarXiv
Phase-resolved Hubble Space Telescope WFC3 Spectroscopy of Weakly-Irradiated Brown Dwarf GD 1400 and Energy Redistribution-Irradiation Trends in Six WDBD Binaries2501.05609v1 · Rachael C. Amaro, D'aniel Apai, Yifan Zhou et al.2025 · 3 citationsarXiv
Horizontal and vertical exoplanet thermal structure from a JWST spectroscopic eclipse map.41415969 · Challener, Ryan C, Weiner Mansfield, Megan, Cubillos, Patricio E et al.2025 · 6 citationsNature astronomy. 2025;9(12):1821-1832
Time Resolved Absorption of Six Chemical Species With MAROON-X Points to Strong Drag in the Ultra Hot Jupiter TOI-1518 b2412.01472v4 · A. Simonnin, V. Parmentier, J.P. Wardenier et al.2024 · 18 citationsA&A 698, A314 (2025)
A Measurement of the Water Abundance in the Atmosphere of the Hot Jupiter WASP-43b with High-resolution Cross-correlation Spectroscopy2411.17923v1 · Dare Bartelt, Megan Weiner Mansfield, Michael R. Line et al.2024 · 1 citationarXiv
CRIRES+ and ESPRESSO reveal an atmosphere enriched in volatiles relative to refractories on the ultra-hot Jupiter WASP-121b2410.18183v1 · Stefan Pelletier, Bjorn Benneke, Yayaati Chachan et al.2024 · 44 citationsarXiv
The Roasting Marshmallows Program with IGRINS on Gemini South II -- WASP-121 b has super-stellar C/O and refractory-to-volatile ratios2410.19017v1 · Peter C. B. Smith, Jorge A. Sanchez, Michael R. Line et al.2024 · 32 citationsarXiv
Possible Carbon Dioxide Above the Thick Aerosols of GJ 1214 b2410.10183v1 · Everett Schlawin, Kazumasa Ohno, Taylor J. Bell et al.2024 · 47 citationsarXiv
A Possible Metal-Dominated Atmosphere Below the Thick Aerosols of GJ 1214 b Suggested by its JWST Panchromatic Transmission Spectrum2410.10186v2 · Kazumasa Ohno, Everett Schlawin, Taylor J. Bell et al.2024 · 32 citationsarXiv
Spectroscopically resolved partial phase curve of the rapid heating and cooling of the highly-eccentric Hot Jupiter HAT-P-2b with WFC32410.11643v1 · Bob Jacobs, Jean-Michel D'esert, Nikole Lewis et al.2024 · 3 citationsarXiv
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