392 citations · 4.5k across the 63 of their papers we have counts for
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Evidence of a Clear Atmosphere for WASP-62b: the Only Known Transiting Gas Giant in the JWST Continuous Viewing Zone
Munazza K. Alam, Mercedes Lopez-Morales, Ryan J. MacDonald +12
Exoplanets with cloud-free, haze-free atmospheres at the pressures probed by transmission spectroscopy represent a valuable opportunity for detailed atmospheric characterization an…
Transmission spectroscopy for the warm sub-Neptune HD3167c: evidence for molecular absorption and a possible high metallicity atmosphere
Thomas Mikal-Evans, Ian J. M. Crossfield, Bjorn Benneke +26
We present a transmission spectrum for the warm (500-600K) sub-Neptune HD3167c obtained using the Hubble Space Telescope Wide Field Camera 3 infrared spectrograph. We combine these…
Phase Curves of Hot Neptune LTT 9779b Suggest a High-Metallicity Atmosphere
Ian J. M. Crossfield, Diana Dragomir, Nicolas B. Cowan +20
Phase curve measurements provide a global view of the composition, thermal structure, and dynamics of exoplanet atmospheres. Although most of the dozens of phase curve measurements…
Spitzer Reveals Evidence of Molecular Absorption in the Atmosphere of the Hot Neptune LTT 9979b
Diana Dragomir, Ian J. M. Crossfield, Bjorn Benneke +27
Non-rocky sub-jovian exoplanets in high irradiation environments are rare. LTT 9979b, also known as TESS Object of Interest (TOI) 193.01, is one of the few such planets discovered…
Into the UV: The Atmosphere of the Hot Jupiter HAT-P-41b Revealed
Nikole K. Lewis, Hannah R. Wakeford, Ryan J. MacDonald +19
For solar-system objects, ultraviolet spectroscopy has been critical in identifying sources for stratospheric heating and measuring the abundances of a variety of hydrocarbon and s…
A Library of Self-Consistent Simulated Exoplanet Atmospheres
Jayesh M. Goyal, Nathan Mayne, Benjamin Drummond +7
We present a publicly available library of model atmospheres with radiative-convective equilibrium Pressure-Temperature (-) profiles fully consistent with equilibrium chemica…
Ground-Based Transmission Spectroscopy with FORS2: A featureless optical transmission spectrum and detection of HO for the ultra-hot Jupiter WASP-103b
J. Wilson, N. P. Gibson, N. Nikolov +11
We report ground-based transmission spectroscopy of the highly irradiated and ultra-short period hot-Jupiter WASP-103b covering the wavelength range 400-600 nm using the…
Tentative Evidence for Water Vapor in the Atmosphere of the Neptune-Size Exoplanet HD 106315 c
Laura Kreidberg, Paul Mollière, Ian J. M. Crossfield +27
We present a transmission spectrum for the Neptune-size exoplanet HD 106315 c from optical to infrared wavelengths based on transit observations from the Hubble Space Telescope/Wid…
The HST PanCET Program: An Optical to Infrared Transmission Spectrum of HAT-P-32Ab
Munazza K. Alam, Mercedes Lopez-Morales, Nikolay Nikolov +14
We present a 0.3-5 micron transmission spectrum of the hot Jupiter HAT-P-32Ab observed with the Space Telescope Imaging Spectrograph (STIS) and Wide Field Camera 3 (WFC3) instrumen…
Confirmation of water emission in the dayside spectrum of the ultrahot Jupiter WASP-121b
Thomas Mikal-Evans, David K. Sing, Tiffany Kataria +5
We present four new secondary eclipse observations for the ultrahot Jupiter WASP-121b acquired using the Hubble Space Telescope Wide Field Camera 3. The eclipse depth is measured t…
Updated Parameters and a New Transmission Spectrum of HD 97658b
Xueying Guo, Ian J. M. Crossfield, Diana Dragomir +23
Recent years have seen increasing interest in the characterization of sub-Neptune sized planets because of their prevalence in the Galaxy, contrasted with their absence in our sola…
TESS discovery of a super-Earth and three sub-Neptunes hosted by the bright, Sun-like star HD 108236
Tansu Daylan, Kartik Pingle, Jasmine Wright +59
We report the discovery and validation of four extrasolar planets hosted by the nearby, bright, Sun-like (G3V) star HD~108236 using data from the Transiting Exoplanet Survey Satell…
Into the UV: A precise transmission spectrum of HAT-P-41b using Hubble's WFC3/UVIS G280 grism
H. R. Wakeford, D. K. Sing, K. B. Stevenson +8
The ultraviolet-visible wavelength range holds critical spectral diagnostics for the chemistry and physics at work in planetary atmospheres. To date, exoplanet time-series atmosphe…
Non-detection of TiO and VO in the atmosphere of WASP-121b using high-resolution spectroscopy
Stephanie R. Merritt, Neale P. Gibson, Stevanus K. Nugroho +9
Thermal inversions have long been predicted to exist in the atmospheres of ultra-hot Jupiters. However, detection of two species thought to be responsible -- TiO and VO -- remain e…
HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away
Mariona Badenas-Agusti, Maximilian N. Günther, Tansu Daylan +38
We present the discovery of three sub-Neptune-sized planets transiting the nearby and bright Sun-like star HD 191939 (TIC 269701147, TOI 1339), a magnitude G8 V dwarf…
Detection of Fe I in the atmosphere of the ultra-hot Jupiter WASP-121b, and a new likelihood-based approach for Doppler-resolved spectroscopy
Neale P. Gibson, Stephanie Merritt, Stevanus K. Nugroho +10
High-resolution Doppler-resolved spectroscopy has opened up a new window into the atmospheres of both transiting and non-transiting exoplanets. Here, we present VLT/UVES observatio…