Results 31 to 40 of about 700,042 (263)

Simulating gas giant exoplanet atmospheres with Exo-FMS: Comparing semi-grey, picket fence and correlated-k radiative-transfer schemes. [PDF]

Monthly notices of the Royal Astronomical Society, 2021
Radiative-transfer (RT) is a fundamental part of modelling exoplanet atmospheres with general circulation models (GCMs). An accurate RT scheme is required for estimates of the atmospheric energy transport and for gaining physical insight from model ...
Elspeth K. H. Lee, V. Parmentier, M. Hammond, S. Grimm, D. Kitzmann, Xianyu Tan, Shang-min Tsai, R. Pierrehumbert   +7 more
semanticscholar   +1 more source

Identification of carbon dioxide in an exoplanet atmosphere [PDF]

Nature, 2022
AbstractCarbon dioxide (CO2) is a key chemical species that is found in a wide range of planetary atmospheres. In the context of exoplanets, CO2is an indicator of the metal enrichment (that is, elements heavier than helium, also called ‘metallicity’)1–3, and thus the formation processes of the primary atmospheres of hot gas giants4–6. It is also one of
The JWST Transiting Exoplanet Community Early Release Science Team, Ahrer, Eva-Maria, Alderson, Lili, Batalha, Natalie M., Batalha, Natasha E., Bean, Jacob L., Beatty, Thomas G., Bell, Taylor J., Benneke, Björn, Berta-Thompson, Zachory K., Carter, Aarynn L., Crossfield, Ian J. M., Espinoza, Néstor, Feinstein, Adina D., Fortney, Jonathan J., Gibson, Neale P., Goyal, Jayesh M., Kempton, Eliza M. -R., Kirk, James, Kreidberg, Laura, López-Morales, Mercedes, Line, Michael R., Lothringer, Joshua D., Moran, Sarah E., Mukherjee, Sagnick, Ohno, Kazumasa, Parmentier, Vivien, Piaulet, Caroline, Rustamkulov, Zafar, Schlawin, Everett, Sing, David K., Stevenson, Kevin B., Wakeford, Hannah R., Allen, Natalie H., Birkmann, Stephan M., Brande, Jonathan, Crouzet, Nicolas, Cubillos, Patricio E., Damiano, Mario, Désert, Jean-Michel, Gao, Peter, Harrington, Joseph, Hu, Renyu, Kendrew, Sarah, Knutson, Heather A., Lagage, Pierre-Olivier, Leconte, Jérémy, Lendl, Monika, MacDonald, Ryan J., May, E. M., Miguel, Yamila, Molaverdikhani, Karan, Moses, Julianne I., Murray, Catriona Anne, Nehring, Molly, Nikolov, Nikolay K., de la Roche, D. J. M. Petit dit, Radica, Michael, Roy, Pierre-Alexis, Stassun, Keivan G., Taylor, Jake, Waalkes, William C., Wachiraphan, Patcharapol, Welbanks, Luis, Wheatley, Peter J., Aggarwal, Keshav, Alam, Munazza K., Banerjee, Agnibha, Barstow, Joanna K., Blecic, Jasmina, Casewell, S. L., Changeat, Quentin, Chubb, K. L., Colón, Knicole D., Coulombe, Louis-Philippe, Daylan, Tansu, de Val-Borro, Miguel, Decin, Leen, Santos, Leonardo A. Dos, Flagg, Laura, France, Kevin, Fu, Guangwei, Muñoz, A. García, Gizis, John E., Glidden, Ana, Grant, David, Heng, Kevin, Henning, Thomas, Hong, Yu-Cian, Inglis, Julie, Iro, Nicolas, Kataria, Tiffany, Komacek, Thaddeus D., Krick, Jessica E., Lee, Elspeth K. H., Lewis, Nikole K., Lillo-Box, Jorge, Lustig-Yaeger, Jacob, Mancini, Luigi, Mandell, Avi M., Mansfield, Megan, Marley, Mark S., Mikal-Evans, Thomas, Morello, Giuseppe, Nixon, Matthew C., Ceballos, Kevin Ortiz, Piette, Anjali A. A., Powell, Diana, Rackham, Benjamin V., Ramos-Rosado, Lakeisha, Rauscher, Emily, Redfield, Seth, Rogers, Laura K., Roman, Michael T., Roudier, Gael M., Scarsdale, Nicholas, Shkolnik, Evgenya L., Southworth, John, Spake, Jessica J., Steinrueck, Maria E, Tan, Xianyu, Teske, Johanna K., Tremblin, Pascal, Tsai, Shang-Min, Tucker, Gregory S., Turner, Jake D., Valenti, Jeff A., Venot, Olivia, Waldmann, Ingo P., Wallack, Nicole L., Zhang, Xi, Zieba, Sebastian   +131 more
openaire   +12 more sources

Atmospheres of Rocky Exoplanets

Annual Review of Astronomy and Astrophysics, 2022
Rocky planets are common around other stars, but their atmospheric properties remain largely unconstrained. Thanks to a wealth of recent planet discoveries and upcoming advances in observing capability, we are poised to characterize the atmospheres of dozens of rocky exoplanets in this decade.
Wordsworth, R., Kreidberg, L.
openaire   +5 more sources

Haze evolution in temperate exoplanet atmospheres through surface energy measurements [PDF]

Nature Astronomy, 2021
Photochemical hazes are important opacity sources in temperate exoplanet atmospheres, hindering current observations from characterizing exoplanet atmospheric compositions.
Xinting Yu, Chao He, Xi Zhang, S. Hörst, Austin H. Dymont, P. McGuiggan, J. Moses, N. Lewis, J. Fortney, P. Gao, E. Kempton, S. Moran, C. Morley, D. Powell, J. Valenti, V. Vuitton   +15 more
semanticscholar   +1 more source

3D Radiative Transfer for Exoplanet Atmospheres. gCMCRT: A GPU-accelerated MCRT Code [PDF]

, 2021
Radiative transfer (RT) is a key component for investigating atmospheres of planetary bodies. With the 3D nature of exoplanet atmospheres being important in giving rise to their observable properties, accurate and fast 3D methods are required to be ...
Elspeth K. H. Lee, J. Wardenier, B. Prinoth, V. Parmentier, S. Grimm, R. Baeyens, L. Carone, D. Christie, R. Deitrick, D. Kitzmann, N. Mayne, M. Roman, B. Thorsbro   +12 more
semanticscholar   +1 more source

Possibilities for an Aerial Biosphere in Temperate Sub Neptune-Sized Exoplanet Atmospheres [PDF]

Universe, 2021
The search for signs of life through the detection of exoplanet atmosphere biosignature gases is gaining momentum. Yet, only a handful of rocky exoplanet atmospheres are suitable for observation with planned next-generation telescopes.
S. Seager, J. Petkowski, M. Günther, W. Bains, T. Mikal-Evans, D. Deming   +5 more
semanticscholar   +1 more source

Why Is it So Cold in Here? Explaining the Cold Temperatures Retrieved from Transmission Spectra of Exoplanet Atmospheres [PDF]

Astrophysical Journal, 2020
Transmission spectroscopy is a powerful technique widely used to probe exoplanet terminators. Atmospheric retrievals of transmission spectra are enabling comparative studies of exoplanet atmospheres.
R. MacDonald, J. Goyal, N. Lewis
semanticscholar   +1 more source

ExoGemS Detection of a Metal Hydride in an Exoplanet Atmosphere at High Spectral Resolution

The Astrophysical Journal Letters, 2023
Exoplanet atmosphere studies are often enriched by synergies with brown dwarf analogs. However, many key molecules commonly seen in brown dwarfs have yet to be confirmed in exoplanet atmospheres.
Laura Flagg, Jake D. Turner, Emily Deibert, Andrew Ridden-Harper, Ernst de Mooij, Ryan J. MacDonald, Ray Jayawardhana, Neale Gibson, Adam Langeveld, David Sing   +9 more
doaj   +1 more source

Theoretical Transmission Spectra of Exoplanet Atmospheres with Hydrocarbon Haze: Effect of Creation, Growth, and Settling of Haze Particles. II. Dependence on UV Irradiation Intensity, Metallicity, C/O Ratio, Eddy Diffusion Coefficient, and Temperature [PDF]

Astrophysical Journal, 2019
Recent transmission spectroscopy has revealed that clouds and hazes are common in the atmospheres of close-in exoplanets. In this study, using the photochemical, microphysical, and transmission spectrum models for close-in warm (≲1000 K) exoplanet ...
Yui Kawashima, Masahiro Ikoma
openalex   +3 more sources

Experimental Investigation of the Photochemical Production of Hydrocarbons in Warm Gas Giant Exoplanet Atmospheres

The Astrophysical Journal, 2023
In warm (equilibrium temperature
Benjamin Fleury, Yves Benilan, Olivia Venot, Bryana L. Henderson, Mark Swain, Murthy S. Gudipati   +5 more
doaj   +1 more source