262 citations · 316 across the 19 of their papers we have counts for
19 papers · 1 filter
The HST/WFC3 Transmission Spectrum of AU Mic b Part I: An Atmosphere Obscured by Contamination and Systematics
William C. Waalkes, Peter Gao, Elisabeth Newton +10
Young sub-Neptune progenitors around M dwarfs offer an excellent opportunity to probe the formation of their abundant, older cousins. At 20 Myr and only 9.7 pc away, AU Mic b…
Magnesium Silicate Clouds in the Atmosphere of HD 209458b from a Rule-Based Tree-Structured Data Reduction
Katy L. Chubb, David Grant, Hannah R. Wakeford +14
HD 209458b is the canonical hot Jupiter: the first to have its atmosphere measured and the first to hint at the role of aerosols in exoplanet atmospheres through the muting of Na a…
JWST COMPASS Program: The 3--5m transmission spectrum of LTT 1445 A b
Natasha E. Batalha, Nicole Wallack, Tyler Gordon +16
The search for an atmosphere on the closest rocky M dwarf planet, LTT 1445 A b, has been the subject of intense investigation from both the ground and space. Here, we present the f…
PICASO 4.0: Clouds and Photochemistry in Climate Models of Brown Dwarfs and Exoplanets
James Mang, Natasha E. Batalha, Caroline V. Morley +8
We present a major update to the open-source atmospheric modeling package \texttt{PICASO}, designed for simulating the thermal structure and spectra of hydrogen-rich atmospheres of…
JWST COMPASS: A NIRSpec G395H Transmission Spectrum of Radius Valley-Dweller TOI-260 b
Annabella Meech, Peter Gao, Nicole L. Wallack +16
We present a JWST/NIRSpec G395H transmission spectrum of TOI-260 b, a K, planet. The transmission spectrum is derived by com…
JWST COMPASS: NIRSpec/G395H Transmission Observations of the Sub-Neptune HD 15337 c
Nicole L. Wallack, Peter Gao, Michael Greklek-McKeon +17
We present the 3-5 m transmission spectrum of HD 15337 c (TOI-402.02), a sub-Neptune (2.526 R, 6.792 M, T656 K) around a K1V star observed…
JWST COMPASS: A NIRSpec G395H Transmission Spectrum of the Super-Earth GJ 357 b
Jea Adams Redai, Nicholas Wogan, Nicole L. Wallack +14
We present JWST NIRSpec/G395H transmission spectroscopy observations of GJ 357 b, a warm ( K) super-Earth (, $1.84\ \mathrm{…
Clouds and Hazes in GJ 1214b's Metal-Rich Atmosphere
Isaac Malsky, Emily Rauscher, Kevin Stevenson +10
The sub-Neptune GJ 1214b has an infamously flat transmission spectrum, likely due to thick aerosols in its atmosphere. A recent JWST MIRI spectroscopic phase curve of GJ 1214 b add…
JWST COMPASS: NIRSpec/G395H Transmission Observations of TOI-776 c, a 2 Rearth M Dwarf Planet
Johanna Teske, Natasha E. Batalha, Nicole L. Wallack +16
The atmospheres of planets between the size of Earth and Neptune at short orbital periods have been under intense scrutiny. Of the ~dozen planets in this regime with atmospheres st…
JWST COMPASS: NIRSpec/G395H Transmission Observations of the Super-Earth TOI-776b
Lili Alderson, Sarah E. Moran, Nicole L. Wallack +15
We present two transit observations of the 520K, 1.85R, 4.0M super-Earth TOI-776b with JWST NIRSpec/G395H, resulting in a 2.8-5.2m transmission spectrum.…
Reflected-light Phase Curves with PICASO: A Kepler-7b Case Study
Colin D. Hamill, Alexandria V. Johnson, Natasha Batalha +4
Examining reflected light from exoplanets aids in our understanding of the scattering properties of their atmospheres and will be a primary task of future flagship space- and groun…
JWST COMPASS: The first near- to mid-infrared transmission spectrum of the hot super-Earth L 168-9 b
Munazza K. Alam, Peter Gao, Jea Adams Redai +14
We present the first broadband near- to mid-infrared (3-12 microns) transmission spectrum of the highly-irradiated (T_eq = 981 K) M dwarf rocky planet L 168-9 b (TOI-134 b) observe…
Light Scattering Measurements of KCl Particles as an Exoplanet Cloud Analog
Colin D. Hamill, Alexandria V. Johnson, Peter Gao
Salt clouds are predicted to be common on warm exoplanets, but their optical properties are uncertain. The Exoplanet Cloud Ensemble Scattering System (ExCESS), a new apparatus to m…
JWST COMPASS: The 3-5 Micron Transmission Spectrum of the Super-Earth L 98-59 c
Nicholas Scarsdale, Nicholas Wogan, Hannah R. Wakeford +14
We present a JWST NIRSpec transmission spectrum of the super-Earth exoplanet L 98-59 c. This small (RR, MR), warm (T$_\textrm{eq…
JWST COMPASS: A NIRSpec/G395H Transmission Spectrum of the Sub-Neptune TOI-836c
Nicole L. Wallack, Natasha E. Batalha, Lili Alderson +13
Planets between the sizes of Earth and Neptune are the most common in the Galaxy, bridging the gap between the terrestrial and giant planets in our Solar System. Now that we are fi…
JWST COMPASS: NIRSpec/G395H Transmission Observations of the Super-Earth TOI-836b
Lili Alderson, Natasha E. Batalha, Hannah R. Wakeford +13
We present two transit observations of the ~870K, 1.7R super-Earth TOI-836b with JWST NIRSpec/G395H, resulting in a 2.8-5.2m transmission spectrum. Using two different reduc…
Helium in the Extended Atmosphere of the Warm Super-Puff TOI-1420b
Shreyas Vissapragada, Michael Greklek-McKeon, Dion Linssen +11
Super-puffs are planets with exceptionally low densities (~g~cm) and core masses (). Many lower-mass () super-…
Quantifying the Transit Light Source Effect: Measurements of Spot Temperature and Coverage on the Photosphere of AU Microscopii with High-Resolution Spectroscopy and Multi-Color Photometry
William Waalkes, Zachory Berta-Thompson, Elisabeth Newton +5
AU Mic is an active 24 Myr pre-main sequence M dwarf in the stellar neighborhood (d9.7 pc) with a rotation period of 4.86 days. The two transiting planets orbiting AU Mic, AU Mi…
Photochemically-produced SO in the atmosphere of WASP-39b
Shang-Min Tsai, Elspeth K. H. Lee, Diana Powell +82
Photochemistry is a fundamental process of planetary atmospheres that regulates the atmospheric composition and stability. However, no unambiguous photochemical products have been…