Results 21 to 30 of about 7,457,455 (185)

Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) [PDF]

Astronomy & Astrophysics, 2020
Ultra-hot Jupiters offer interesting prospects for expanding our theories on dynamical evolution and the properties of extremely irradiated atmospheres. In this context, we present the analysis of new optical spectroscopy for the transiting ultra-hot Jupiter WASP-121b.
Bourrier, V., Ehrenreich, D., Lendl, M., Cretignier, M., Allart, R., Dumusque, X., Cegla, H,. M., Surez, -Mascareo, A., Wyttenbach, A., Hoeijmakers, H.J., Melo, C., Kuntzer, T., Astudillo, -Defru, N., Giles, H., Heng, K., Kitzmann, D., Lavie, B., Lovis, C., Murgas, F., Nascimbeni, V., Pepe, F., Pino, L., Segransan, D., Udry, S.   +23 more
openaire   +4 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

Thermal structure of an exoplanet atmosphere from phase-resolved emission spectroscopy [PDF]

Science, 2014
Exoplanets that orbit close to their host stars are much more highly irradiated than their solar system counterparts. Understanding the thermal structures and appearances of these planets requires investigating how their atmospheres respond to such extreme stellar forcing.
Stevenson, K. B., Desert, J.-M., Line, Michael R., Bean, J. L., Fortney, Jonathan J., Showman, A. P., Kataria, T., Kreidberg, Laura, McCullough, Peter R., Henry, Gregory W., Charbonneau, D., Burrows, A., Madhusudhan, Nikku, Williamson, M. H., Homeier, Derek, Seager, Sara   +15 more
openaire   +6 more sources

THE INFLUENCE OF THE EXTREME ULTRAVIOLET SPECTRAL ENERGY DISTRIBUTION ON THE STRUCTURE AND COMPOSITION OF THE UPPER ATMOSPHERE OF EXOPLANETS [PDF]

The Astrophysical Journal, 2016
ABSTRACT By varying the profiles of stellar extreme ultraviolet (EUV) spectral energy distributions (SEDs), we tested the influences of stellar EUV SEDs on the physical and chemical properties of an escaping atmosphere. We apply our model to study four exoplanets: HD 189733b, HD 209458b, GJ 436b, and Kepler-11b.
Guo, J. H., Ben-Jaffel, Lotfi
openaire   +2 more sources

exoplanet-dev/exoplanet: exoplanet v0.5.0rc3

, 2021
0.5.0 (2021-05-04) Adds high-level, pure-Theano/Aesara implementation of RegularGridInterpolator to replace compiled version #167 Moves compiled Ops to exoplanet-core making exoplanet a pure-Python package #171 Moves ReboundOp and ReboundOrbit to ...
emilygilbert, Dan Foreman-Mackey, Eric Agol, Christina Hedges, Tom Barclay, Ian Czekala, Luke Bouma, Rodrigo Luger, Adrian Price-Whelan, Timothy D Brandt, Arjun Savel   +10 more
core   +1 more source

Temperature Structures Associated with Different Components of the Atmospheric Circulation on Tidally Locked Exoplanets

The Astrophysical Journal, 2022
Abstract Observations of time-resolved thermal emission from tidally locked exoplanets can tell us about their atmospheric temperature structure. Telescopes such as JWST and ARIEL will improve the quality and availability of these measurements.
Neil T. Lewis, Mark Hammond
openaire   +2 more sources

Using dimers to measure biosignatures and atmospheric pressure for terrestrial exoplanets [PDF]

, 2014
We present a new method to probe atmospheric pressure on Earth-like planets using (O-O) dimers in the near-infrared. We also show that dimer features could be the most readily detectable biosignatures for Earth-like atmospheres and may even be detectable
Misra, A., Meadows, V., Claire, M., Crisp, D.   +3 more
core   +1 more source

Correlations between the stellar, planetary, and debris components of exoplanet systems observed by Herschel [PDF]

, 2014
J.P.M., C.E., J.M. and B.M. are partially supported by Spanish grant AYA 2011-26202. This work was supported by the European Union through ERC grant number no.
Lestrade, J.-F., Olofsson, G., G. Olofsson, G. Bryden, C. Eiroa, Horner, J., Eiroa, C., J. Sanz-Forcada, Meeus, G., Pilbratt, G.L., Moro-Martin, Amaya, Lestrade, J. -F., Meeus, Gwendolyn, White, G.J., Olofsson, Goran, Kennedy, G., Ivison, R. J., A. Moro-Martín, Sanz-Forcada, J., Wyatt, M.C., G. Meeus, Lestrade, J-E, J. P. Marshall, Ivison, Robert J., Marshall, J.P., Greaves, J. S., J. S. Greaves, Eiroa, Carlos, J. Horner, Greaves, J.S., G. Kennedy, Maldonado, J., R. J. Ivison, Sibthorpe, B., White, Glenn J., Wyatt, Mark C., Wyatt, M. C., Matthews, B., Del Burgo, C., Moro-Martín, A., Montesinos, B., Kennedy, G. M., J.-F. Lestrade, del Burgo, Carlos, J. Maldonado, Pilbratt, G. L., Olofsson, Göran,, Bryden, G., B. Sibthorpe, Marshall, J. P., Forcada, Jorge Sanz, White, G. J., Mora, A., B. Matthews, B. Montesinos, Maldonado, Jesús, C. del Burgo, Ivison, R.J., G. L. Pilbratt, M. C. Wyatt, Lestrade, Jean-François, Matthews, B. C., A. Mora, G. J. White, Horner, Jonathan, Lestrade J, Wyatt MC, Ivison RJ, Eiroa C, Olofsson G, White GJ, Marshall JP, del Burgo C, Kennedy G, Maldonado J, Meeus G, Matthews B, Bryden G, Sibthorpe B, Montesinos B, Sanz-Forcada J, Pilbratt GL, Horner J, Mora A, Greaves JS, Moro-Martín A   +85 more
core   +1 more source

Towards a Theory for the Atmospheres, Structure, and Evolution of Giant Exoplanets [PDF]

Proceedings of the International Astronomical Union, 2011
AbstractIn this short review, I summarize some of the salient features of the emerging theory of exoplanets in general, and of giant exoplanets in particular. A focus is on the characterization of transiting planets at primary and secondary eclipse, but various other related topics are covered, if only briefly.
openaire   +1 more source

Rocky Planet or Water World? Observability of Low-density Lava World Atmospheres

The Astrophysical Journal, 2023
Super-Earths span a wide range of bulk densities, indicating a diversity in interior conditions beyond that seen in the solar system. In particular, an emerging population of low-density super-Earths may be explained by volatile-rich interiors.
Anjali A. A. Piette, Peter Gao, Kara Brugman, Anat Shahar, Tim Lichtenberg, Francesca Miozzi, Peter Driscoll   +6 more
doaj   +1 more source