Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Acreman, David M."'
The first stable object to develop in the low-mass star formation process has long been predicted to be the first hydrostatic core (FHSC). Despite much effort, it has still yet to be definitively observed in nature. More specific observational signat
Externí odkaz:
http://arxiv.org/abs/1906.01324
Autor:
Davies, Claire L, Kraus, Stefan, Harries, Tim J, Kreplin, Alexander, Monnier, John D, Labdon, Aaron, Kloppenborg, Brian, Acreman, David M, Baron, Fabien, Millan-Gabet, Rafael, Sturmann, Judit, Sturmann, Laszlo, Brummelaar, Theo A Ten
We present comprehensive models of Herbig Ae star, HD 142666, which aim to simultaneously explain its spectral energy distribution (SED) and near-infrared (NIR) interferometry. Our new sub-milliarcsecond resolution CHARA (CLASSIC and CLIMB) interfero
Externí odkaz:
http://arxiv.org/abs/1808.10762
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:
Lewis, Neil T., Lambert, F. Hugo, Boutle, Ian A., Mayne, Nathan J., Manners, James, Acreman, David M.
Previous studies have demonstrated that continental carbon-silicate weathering is important to the continued habitability of a terrestrial planet. Despite this, few studies have considered the influence of land on the climate of a tidally-locked plan
Externí odkaz:
http://arxiv.org/abs/1802.00378
Autor:
Mayne, N. J., Debras, F., Baraffe, I., Thuburn, John, Amundsen, David S., Acreman, David M., Smith, Chris, Browning, Matthew K., Manners, James, Wood, Nigel
Publikováno v:
A&A 604, A79 (2017)
We present highlights from a large set of simulations of a hot Jupiter atmosphere, nominally based on HD 209458b, aimed at exploring both the evolution of the deep atmosphere, and the acceleration of the zonal flow or jet. We find the occurrence of a
Externí odkaz:
http://arxiv.org/abs/1704.00539
Autor:
Boutle, Ian A., Mayne, Nathan J., Drummond, Benjamin, Manners, James, Goyal, Jayesh, Lambert, F. Hugo, Acreman, David M., Earnshaw, Paul D.
Publikováno v:
A&A 601, A120 (2017)
We present results of simulations of the climate of the newly discovered planet Proxima Centauri B, performed using the Met Office Unified Model (UM). We examine the responses of both an `Earth-like' atmosphere and simplified nitrogen and trace carbo
Externí odkaz:
http://arxiv.org/abs/1702.08463
Autor:
Amundsen, David S., Mayne, Nathan J., Baraffe, Isabelle, Manners, James, Tremblin, Pascal, Drummond, Benjamin, Smith, Chris, Acreman, David M., Homeier, Derek
Publikováno v:
A&A 595, A36 (2016)
To study the complexity of hot Jupiter atmospheres revealed by observations of increasing quality, we have adapted the UK Met Office global circulation model (GCM), the Unified Model (UM), to these exoplanets. The UM solves the full 3D Navier-Stokes
Externí odkaz:
http://arxiv.org/abs/1608.08593
Modelling multi-wavelength observational characteristics of bow shocks from runaway early type stars
We assess the multi-wavelength observable properties of the bow shock around a runaway early type star using a combination of hydrodynamical modelling, radiative transfer calculations and synthetic imaging. Instabilities associated with the forward s
Externí odkaz:
http://arxiv.org/abs/1511.03059
On the relative importance of different microphysics on the D-type expansion of galactic HII regions
Radiation hydrodynamics (RHD) simulations are used to study many astrophysical phenomena, however they require the use of simplified radiation transport and thermal prescriptions to reduce computational cost. In this paper we present a systematic stu
Externí odkaz:
http://arxiv.org/abs/1508.00900
The arm structure of the Milky Way remains somewhat of an unknown, with observational studies hindered by our location within the Galactic disc. In the work presented here we use smoothed particle hydrodynamics (SPH) and radiative transfer to create
Externí odkaz:
http://arxiv.org/abs/1503.05563