Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Drummond, Benjamin"'
The effect of enhanced UV irradiation associated with stellar flares on the atmospheric composition and temperature of gas giant exoplanets was investigated. This was done using a 1D radiative-convective-chemical model with self-consistent feedback b
Externí odkaz:
http://arxiv.org/abs/2306.03673
Autor:
McCulloch, Danny, Sergeev, Denis E., Mayne, Nathan, Bate, Matthew, Manners, James, Boutle, Ian, Drummond, Benjamin, Kohary, Kristzian
Publikováno v:
JOURNAL = Geoscientific Model Development, VOLUME = 16, YEAR = 2023, NUMBER = 2, PAGES = 621--657
We present results from the Met Office Unified Model (UM), a world-leading climate and weather model, adapted to simulate a dry Martian climate. We detail the adaptation of the basic parameterisations and analyse results from two simulations, one wit
Externí odkaz:
http://arxiv.org/abs/2302.00359
Autor:
Zamyatina, Maria, Hébrard, Éric, Drummond, Benjamin, Mayne, Nathan J., Manners, James, Christie, Duncan A., Tremblin, Pascal, Sing, David K., Kohary, Krisztian
Transport-induced quenching, i.e., the homogenisation of chemical abundances by atmospheric advection, is thought to occur in the atmospheres of hot gas giant exoplanets. While some numerical modelling of this process exists, the three-dimensional na
Externí odkaz:
http://arxiv.org/abs/2211.09071
Autor:
Ridgway, Robert J., Zamyatina, Maria, Mayne, Nathan J., Manners, James, Lambert, F. Hugo, Braam, Marrick, Drummond, Benjamin, Hébrard, Éric, Palmer, Paul I., Kohary, Krisztian
Stellar flares present challenges to the potential habitability of terrestrial planets orbiting M dwarf stars through inducing changes in the atmospheric composition and irradiating the planet's surface in large amounts of ultraviolet light. To exami
Externí odkaz:
http://arxiv.org/abs/2210.13257
Autor:
Nikolov, Nikolay, Maciejewski, Gracjan, Constantinou, Savvas, Madhusudhan, Nikku, Fortney, Jonathan J., Smalley, Barry, Carter, Aarynn L., de Mooij, Ernst J. W., Drummond, Benjamin, Gibson, Neale P., Helling, Christiane, Mayne, Nathan J., Mikal-Evans, Thomas, Sing, David K., Wilson, Jamie
We present a ground-based optical transmission spectrum for the warm Saturn-mass exoplanet WASP-110b from two transit observations made with the FOcal Reducer and Spectrograph (FORS2) on the Very Large Telescope (VLT). The spectrum covers the wavelen
Externí odkaz:
http://arxiv.org/abs/2105.06522
Autor:
Roth, Alexander, Drummond, Benjamin, Hébrard, Eric, Tremblin, Pascal, Goyal, Jayesh, Mayne, Nathan
Thermal dissociation and recombination of molecular hydrogen, H_2, in the atmospheres of ultra-hot Jupiters (UHJs) has been shown to play an important role in global heat redistribution. This, in turn, significantly impacts their planetary emission,
Externí odkaz:
http://arxiv.org/abs/2104.14376
Autor:
Goyal, Jayesh M., Mayne, Nathan, Drummond, Benjamin, Sing, David K., Hébrard, Eric, Lewis, Nikole, Tremblin, Pascal, Phillips, Mark W., Mikal-Evans, Thomas, Wakeford, Hannah R.
We present a publicly available library of model atmospheres with radiative-convective equilibrium Pressure-Temperature ($P$-$T$) profiles fully consistent with equilibrium chemical abundances, and the corresponding emission and transmission spectrum
Externí odkaz:
http://arxiv.org/abs/2008.01856
Autor:
Drummond, Benjamin, Hebrard, Eric, Mayne, Nathan J., Venot, Olivia, Ridgway, Robert J., Changeat, Quentin, Tsai, Shang-min, Manners, James, Tremblin, Pascal, Abraham, Nathan Luke, Sing, David, Kohary, Krisztian
We present results from a set of simulations using a fully coupled three-dimensional (3D) chemistry-radiation-hydrodynamics model and investigate the effect of transport of chemical species by the large-scale atmospheric flow in hot Jupiter atmospher
Externí odkaz:
http://arxiv.org/abs/2001.11444
Autor:
Mikal-Evans, Thomas, Sing, David K., Goyal, Jayesh M., Drummond, Benjamin, Carter, Aarynn L., Henry, Gregory W., Wakeford, Hannah R., Lewis, Nikole K., Marley, Mark S., Tremblin, Pascal, Nikolov, Nikolay, Kataria, Tiffany, Deming, Drake, Ballester, Gilda E.
WASP-121b is a transiting gas giant exoplanet orbiting close to its Roche limit, with an inflated radius nearly double that of Jupiter and a dayside temperature comparable to a late M dwarf photosphere. Secondary eclipse observations covering the 1.1
Externí odkaz:
http://arxiv.org/abs/1906.06326
The carbon-to-oxygen ratio: implications for the spectra of hydrogen-dominated exoplanet atmospheres
Autor:
Drummond, Benjamin, Carter, Aarynn L., Hébrard, Eric, Mayne, Nathan J., Sing, David K., Evans, Thomas M., Goyal, Jayesh
We present results from one-dimensional atmospheric simulations investigating the effect of varying the carbon-to-oxygen (C/O) ratio on the thermal structure, chemical composition and transmission and emission spectra, for irradiated hydrogen-dominat
Externí odkaz:
http://arxiv.org/abs/1903.10997