262 citations · 622 across the 24 of their papers we have counts for
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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…
Resolving the flat-spectrum conundrum: clumpy aerosol distributions in sub-Neptune atmospheres
James E. Owen, James Kirk
Transmission spectroscopy of sub-Neptunes was expected to reveal their compositions and hence origins, yet many show flat near- to mid-infrared spectra. Such spectra can be explain…
JWST COMPASS: Insights into the Systematic Noise Properties of NIRSpec/G395H From a Uniform Reanalysis of Seven Transmission Spectra
Tyler A. Gordon, Natalie M. Batalha, Natasha E. Batalha +9
JWST has already observed near-infrared transmission spectra of over a dozen super-Earths and sub-Neptunes. While some observations have allowed astronomers to characterize sub-Nep…
Stacking transmission spectra of different exoplanets
James Kirk, James E. Owen
In many areas of astronomy, spectra of different objects are co-added or stacked to improve signal-to-noise and reveal population-level characteristics. As the number of exoplanets…
Additional JWST/NIRSpec Transits of the Rocky M Dwarf Exoplanet GJ 1132 b Reveal a Featureless Spectrum
Katherine A. Bennett, Ryan J. MacDonald, Sarah Peacock +17
As an archetypal M-dwarf rocky exoplanet, GJ 1132 b has a varied history of atmospheric measurements. At 1.13 , 1.66 , and 580 K, it orbits a bright…
Searching for helium escape and a low density atmosphere around the 120 Myr old sub-Neptune HIP94235b using CRIRES+
Ava Morrissey, George Zhou, Chelsea X. Huang +6
Atmospheric mass loss is thought to induce the bimodality in the small planet population as we observe it today. Observationally, active mass loss can be traced by excess absorptio…
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…
The Magnetically Induced Radial Velocity Variation of Gliese 341 and an Upper Limit to the Mass of Its Transiting Earth-sized Planet
Victoria DiTomasso, Mercedes Lopez-Morales, Sarah Peacock +5
The Transiting Exoplanet Survey Satellite (TESS) mission identified a potential 0.88 REarth planet with a period of 7.577 days, orbiting the nearby M1V star GJ 341 (TOI 741.01). Th…
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.…
Tracing the Winds: A Uniform Interpretation of Helium Escape in Exoplanets from Archival Spectroscopic Observations
Patrick McCreery, Leonardo A. Dos Santos, Néstor Espinoza +2
Over the past decade, observations of evaporating exoplanets have become increasingly common, driven by the discovery of the near-infrared helium-triplet line as a powerful probe o…
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…
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…
A Benchmark JWST Near-Infrared Spectrum for the Exoplanet WASP-39b
A. L. Carter, E. M. May, N. Espinoza +77
Observing exoplanets through transmission spectroscopy supplies detailed information on their atmospheric composition, physics, and chemistry. Prior to JWST, these observations wer…
Sulphur dioxide in the mid-infrared transmission spectrum of WASP-39b
Diana Powell, Adina D. Feinstein, Elspeth K. H. Lee +70
The recent inference of sulphur dioxide (SO) in the atmosphere of the hot (1100 K), Saturn-mass exoplanet WASP-39b from near-infrared JWST observations suggests that phot…
Debris Disks can Contaminate Mid-Infrared Exoplanet Spectra: Evidence for a Circumstellar Debris Disk around Exoplanet Host WASP-39
Laura Flagg, Alycia J. Weinberger, Taylor J. Bell +21
The signal from a transiting planet can be diluted by astrophysical contamination. In the case of circumstellar debris disks, this contamination could start in the mid-infrared and…
Non-Detections of Helium in the Young Sub-Jovian Planets K2-100b, HD 63433b, & V1298 Tau c
Munazza K. Alam, James Kirk, Leonardo A. Dos Santos +10
We search for excess in-transit absorption of neutral helium at 1.083 m in the atmospheres of the young (<800 Myr) sub-Jovian (0.2-0.5 ) planets HD 63433b, K2-100b, a…
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…
JWST/NIRCam Transmission Spectroscopy of the Nearby Sub-Earth GJ 341b
James Kirk, Kevin B. Stevenson, Guangwei Fu +17
We present a JWST/NIRCam transmission spectrum from m of the recently-validated sub-Earth GJ 341b ( , …
Detection of Carbon Monoxide in the Atmosphere of WASP-39b Applying Standard Cross-Correlation Techniques to JWST NIRSpec G395H Data
Emma Esparza-Borges, Mercedes López-Morales, Jéa I. Adams Redai +30
Carbon monoxide was recently reported in the atmosphere of the hot Jupiter WASP-39b using the NIRSpec PRISM transit observation of this planet, collected as part of the JWST Transi…
A JWST transmission spectrum of a nearby Earth-sized exoplanet
J. Lustig-Yaeger, G. Fu, E. M. May +20
The critical first step in the search for life on exoplanets over the next decade is to determine whether rocky planets transiting small M-dwarf stars possess atmospheres and, if s…
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…