Results 1 to 10 of about 5,444 (181)

Evolutionary and functional relationships between plant and microbial C₁ metabolism in terrestrial ecosystems. [PDF]

New Phytol
Summary One‐carbon (C1) metabolism, centered on the universal methyl donor S‐adenosyl methionine (SAM), plays critical roles in biosynthesis, redox regulation, and stress responses across plants and microbes. A recently proposed photosynthetic C1 pathway links SAM methyl groups directly to RuBisCO‐mediated CO2 assimilation and integrates with nitrogen ...
Jardine KJ, Honeker LK, Zhang Z, Kwatcho Kengdo S, Yang Y, Roscioli J, Riley WJ.   +6 more
europepmc   +2 more sources

Photochemical Hazes Dramatically Alter Temperature Structure and Atmospheric Circulation in 3D Simulations of Hot Jupiters

The Astrophysical Journal, 2023
Photochemical hazes are expected to form in hot Jupiter atmospheres and may explain the strong scattering slopes and muted spectral features observed in the transmission spectra of many hot Jupiters.
Maria E. Steinrueck, Tommi Koskinen, Panayotis Lavvas, Vivien Parmentier, Sebastian Zieba, Xianyu Tan, Xi Zhang, Laura Kreidberg   +7 more
doaj   +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, Massimo A. Bollasina, Denis E. Sergeev, Paul I. Palmer, Nathan J. Mayne   +4 more
doaj   +1 more source

A Radiative-convective Model for Terrestrial Planets with Self-consistent Patchy Clouds

The Planetary Science Journal, 2023
Clouds are ubiquitous: they arise for every solar system planet that possesses an atmosphere and have also been suggested as a leading mechanism for obscuring spectral features in exoplanet observations.
James D. Windsor, Tyler D. Robinson, Ravi kumar Kopparapu, Amber V. Young, David E. Trilling, Joe LLama   +5 more
doaj   +1 more source

Exoplanet albedo spectra and colors as a function of planet phase, separation, and metallicity [PDF]

, 2010
First generation optical coronagraphic telescopes will obtain images of cool gas and ice giant exoplanets around nearby stars. The albedo spectra of exoplanets at planet-star separations larger than about 1 AU are dominated by reflected light to beyond 1
Ackerman, Alibert, Beichman, Boss, Brown, Burrows, Burrows, Burrows, Chapman, Chapman, Conrath, Dlugach, Dodson-Robinson, Dyudina, Fortney, Fortney, Fortney, Fortney, Fortney, Fortney, Freedman, Gautier, Gautier, Guillot, Guillot, Guyon, Ida, Jonathan J. Fortney, Kasdin, Kerri L. Cahoy, Kratter, Kuchner, Lafreniere, Liou, Lodders, Lodders, Lodders, Mark S. Marley, Marley, Marley, Marley, Marley, Marois, Mawet, Mihilas, Rauscher, Saumon, Saumon, Seager, Sobolev, Spiegel, Stephens, Sudarsky, Sudarsky, Sudarsky, Traub, Veras, West, Zahnle   +58 more
core   +2 more sources

Radial velocity eclipse mapping of exoplanets [PDF]

, 2015
Planetary rotation rates and obliquities provide information regarding the history of planet formation, but have not yet been measured for evolved extrasolar planets.
Barnes J. W., Correia A. C. M., Cowan N. B., Cox A. N., de Pater I., Faure G., Felix Sainsbury-Martinez, Fujii Y., Guillot T., Heller R., Hirano T., Hui L., Kataria T., Kawahara H., Kawahara H., Mandel K., Markwardt C. B., Murray C. D, Nikolay Nikolov, Ohta Y., Pallé E., Paz-Chinchón F., Seager S., Winn J. N.   +23 more
core   +2 more sources

Magnetohydrodynamical Torsional Oscillations from Thermoresistive Instability in Hot Jupiters

The Astrophysical Journal, 2023
Hot Jupiter atmospheres may be subject to a thermoresistive instability where an increase in the electrical conductivity due to ohmic heating results in runaway of the atmospheric temperature.
Raphaël Hardy, Paul Charbonneau, Andrew Cumming   +2 more
doaj   +1 more source

The Inhomogeneity Effect. III. Weather Impacts on the Heat Flow of Hot Jupiters

The Astrophysical Journal, 2023
The interior flux of a giant planet impacts atmospheric motion, and the atmosphere dictates the interior’s cooling. Here we use a non-hydrostatic general circulation model (Simulating Non-hydrostatic Atmospheres on Planets) coupled with a multi-stream ...
Xi Zhang, Cheng Li, Huazhi Ge, Tianhao Le   +3 more
doaj   +1 more source

Emergent Exoplanet Flux: Review of the Spitzer Results [PDF]

, 2008
Observations using the Spitzer Space Telescope provided the first detections of photons from extrasolar planets. Spitzer observations are allowing us to infer the temperature structure, composition, and dynamics of exoplanet atmospheres.
Bouchy, Charbonneau, Demory, Drake Deming, Gillon, Morales-Calderon, Showman   +6 more
core   +1 more source

Earth’s polar night boundary layer as an analogue for dark side inversions on synchronously rotating terrestrial exoplanets [PDF]

, 2020
A key factor in determining the potential habitability of synchronously rotating planets is the strength of the atmospheric boundary layer inversion between the dark side surface and the free atmosphere.
Elvidge, Andrew, Joshi, Manoj, Sergeev, Denis, Wordsworth, Robin   +3 more
core   +2 more sources