TESS Revisits WASP-12: Updated Orbital Decay Rate and Constraints on Atmospheric Variability [PDF]
Astronomical Journal, 2022 After observing WASP-12 in the second year of the primary mission, the Transiting Exoplanet Survey Satellite (TESS) revisited the system in late 2021 during its extended mission.
I. Wong +6 more
semanticscholar +1 more source
Outstanding Challenges of Exoplanet Atmospheric Retrievals [PDF]
Space Science Reviews, 2020 Spectral retrieval has long been a powerful tool for interpreting planetary remote sensing observations. Flexible, parameterised, agnostic models are coupled with inversion algorithms in order to infer atmospheric properties directly from observations ...
J. Barstow, K. Heng
semanticscholar +1 more source
A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates
Geophysical Monograph Series, Page 47-54., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky +2 more
wiley +2 more sources
Reassessing the Evidence for Time Variability in the Atmosphere of the Exoplanet HAT-P-7 b
The Astronomical Journal, 2022 Abstract We reassess the claimed detection of variability in the atmosphere of the hot Jupiter HAT-P-7 b, reported by Armstrong et al. Although astronomers expect hot Jupiters to have changing atmospheres, variability is challenging to detect.
Maura Lally, Andrew Vanderburg
openaire +3 more sources
Proceedings of the National Academy of Sciences of the United States of America, 2023 Significance Using a fully coupled, three-dimensional atmospheric chemistry-radiation-dynamics model, we demonstrate that the atmospheric composition of terrestrial exoplanets can be self-oscillatory under nonvarying external forcings. This finding could
Yangcheng Luo +4 more
semanticscholar +1 more source
Traveling Planetary-scale Waves Cause Cloud Variability on Tidally Locked Aquaplanets
The Planetary Science Journal, 2023 Cloud cover at the planetary limb of water-rich Earth-like planets is likely to weaken chemical signatures in transmission spectra, impeding attempts to characterize these atmospheres.
Maureen Cohen +4 more
doaj +1 more source
Coronal X-Ray Emission from Nearby, Low-mass, Exoplanet Host Stars Observed by the MUSCLES and Mega-MUSCLES HST Treasury Survey Projects [PDF]
Astronomical Journal, 2023 The high-energy X-ray and ultraviolet (UV) radiation fields of exoplanet host stars play a crucial role in controlling the atmospheric conditions and the potential habitability of exoplanets.
Alexander Brown +10 more
semanticscholar +1 more source
X-SHYNE: X-shooter spectra of young exoplanet analogs. I. A medium-resolution 0.65-2.5 microns one-shot spectrum of VHS 1256-1257 b [PDF]
Astronomy & Astrophysics, 2022 We present simultaneous 0.65-2.5 microns medium resolution ...
Simon Petrus +12 more
semanticscholar +1 more source
Stellar Surface Inhomogeneities as a Potential Source of the Atmospheric Signal Detected in the K2-18b Transmission Spectrum [PDF]
Astronomical Journal, 2021 Transmission spectroscopy of transiting exoplanets is a proven technique that can yield information on the composition and structure of a planet’s atmosphere. However, transmission spectra may be compromised by inhomogeneities in the stellar photosphere.
T. Barclay +7 more
semanticscholar +1 more source
Water Ice Cloud Variability and Multi-epoch Transmission Spectra of TRAPPIST-1e [PDF]
Astrophysical Journal Letters, 2021 The precise characterization of terrestrial atmospheres with the James Webb Space Telescope (JWST) is one of the utmost goals of exoplanet astronomy in the next decade.
E. May +4 more
semanticscholar +1 more source