Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Amundsen, David. S."'
Autor:
Del Genio, Anthony D., Kiang, Nancy Y., Way, Michael J., Amundsen, David S., Sohl, Linda E., Fujii, Yuka, Chandler, Mark, Aleinov, Igor, Colose, Christopher M., Guzewich, Scott D., Kelley, Maxwell
Publikováno v:
The Astrophysical Journal, 884:75 (30 pp), 2019 October 10
The potential habitability of known exoplanets is often categorized by a nominal equilibrium temperature assuming a Bond albedo of either 0.3, similar to Earth, or 0. As an indicator of habitability, this leaves much to be desired, because albedo on
Externí odkaz:
http://arxiv.org/abs/1812.06606
Autor:
Lines, S., Mayne, N. J., Boutle, Ian A., Manners, James, Lee, Graham K. H., Helling, Ch., Drummond, Benjamin, Amundsen, David S., Goyal, Jayesh, Acreman, David M., Tremblin, Pascal, Kerslake, Max
Publikováno v:
A&A 615, A97 (2018)
To understand and compare the 3D atmospheric structure of HD 209458 b and HD 189733 b, focusing on the formation and distribution of cloud particles, as well as their feedback on the dynamics and thermal profile. We couple the 3D Met Office Unified M
Externí odkaz:
http://arxiv.org/abs/1803.00226
Autor:
Drummond, Benjamin, Mayne, N. J., Manners, James, Carter, Aarynn L., Boutle, Ian A., Baraffe, Isabelle, Hebrard, Eric, Tremblin, Pascal, Sing, David K., Amundsen, David S., Acreman, Dave
We present a study of the effect of wind-driven advection on the chemical composition of hot Jupiter atmospheres using a fully-consistent 3D hydrodynamics, chemistry and radiative transfer code, the Met Office Unified Model (UM). Chemical modelling o
Externí odkaz:
http://arxiv.org/abs/1802.09222
We explore the atmospheric and surface history of a hypothetical paleo-Venus climate using a 3-D General Circulation Model. We constrain our model with the in-situ and remote sensing Venus data available today. Given that Venus and Earth are believed
Externí odkaz:
http://arxiv.org/abs/1802.05434
Autor:
Drummond, Benjamin, Mayne, N. J., Baraffe, Isabelle, Tremblin, Pascal, Manners, James, Amundsen, David S., Goyal, Jayesh, Acreman, Dave
In this work we have performed a series of simulations of the atmosphere of GJ~1214b assuming different metallicities using the Met Office Unified Model (UM). The UM is a general circulation model (GCM) that solves the deep, non-hydrostatic equations
Externí odkaz:
http://arxiv.org/abs/1801.01045
Autor:
Goyal, Jayesh M., Mayne, Nathan, Sing, David K., Drummond, Benjamin, Tremblin, Pascal, Amundsen, David S., Evans, Thomas, Carter, Aarynn L., Spake, Jessica, Baraffe, Isabelle, Nikolov, Nikolay, Manners, James, Chabrier, Gilles, Hebrard, Eric
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 474, Issue 4, March 2018, Pages 5158-5185
We present a grid of forward model transmission spectra, adopting an isothermal temperature-pressure profile, alongside corresponding equilibrium chemical abundances for 117 observationally significant hot exoplanets (Equilibrium Temperatures of 547-
Externí odkaz:
http://arxiv.org/abs/1710.10269
Autor:
Del Genio, Anthony D., Way, Michael J., Amundsen, David S., Aleinov, Igor, Kelley, Maxwell, Kiang, Nancy Y., Clune, Thomas L.
The nearby exoplanet Proxima Centauri b will be a prime future target for characterization, despite questions about its retention of water. Climate models with static oceans suggest that an Earth-like Proxima b could harbor a small dayside region of
Externí odkaz:
http://arxiv.org/abs/1709.02051
Autor:
Evans, Thomas M., Sing, David K., Kataria, Tiffany, Goyal, Jayesh, Nikolov, Nikolay, Wakeford, Hannah R., Deming, Drake, Marley, Mark S., Amundsen, David S., Ballester, Gilda E., Barstow, Joanna K., Ben-Jaffel, Lotfi, Bourrier, Vincent, Buchhave, Lars A., Cohen, Ofer, Ehrenreich, David, Munoz, Antonio Garcia, Henry, Gregory W., Knutson, Heather, Lavvas, Panayotis, Etangs, Alain Lecavelier des, Lewis, Nikole K., Lopez-Morales, Mercedes, Mandell, Avi M., Sanz-Forcada, Jorge, Tremblin, Pascal, Lupu, Roxana
Publikováno v:
Nature, 548, 58-61 (3 August 2017)
Infrared radiation emitted from a planet contains information about the chemical composition and vertical temperature profile of its atmosphere. If upper layers are cooler than lower layers, molecular gases will produce absorption features in the pla
Externí odkaz:
http://arxiv.org/abs/1708.01076
Publikováno v:
A&A 605, A95 (2017)
Molecular line lists are important for modelling absorption and emission processes in atmospheres of different astronomical objects, such as cool stars and exoplanets. In order to be applicable for high temperatures, line lists for molecules like met
Externí odkaz:
http://arxiv.org/abs/1706.05724
Autor:
Wakeford, Hannah R., Sing, David K., Kataria, Tiffany, Deming, Drake, Nikolov, Nikolay, Lopez, Eric D., Tremblin, Pascal, Amundsen, David S., Lewis, Nikole K., Mandell, Avi M., Fortney, Jonathan J., Knutson, Heather, Benneke, Björn, Evans, Thomas M.
A correlation between giant-planet mass and atmospheric heavy elemental abundance was first noted in the past century from observations of planets in our own Solar System, and has served as a cornerstone of planet formation theory. Using data from th
Externí odkaz:
http://arxiv.org/abs/1705.04354