Results 41 to 50 of about 59,298 (206)

Jupiter as an exoplanet: UV to NIR transmission spectrum reveals hazes, a Na layer and possibly stratospheric H2O-ice clouds [PDF]

, 2015
Currently, the analysis of transmission spectra is the most successful technique to probe the chemical composition of exoplanet atmospheres. But the accuracy of these measurements is constrained by observational limitations and the diversity of possible ...
Garcia-Melendo, E., Gonzalez-Merino, B, Lopez-Puertas, M., Montañes-Rodriguez, P., Palle, E.   +4 more
core   +3 more sources

The Similar Seven: A Set of Very Alike Exoplanets to Test Correlations between System Parameters and Atmospheric Properties

The Astrophysical Journal Letters, 2023
Studies of exoplanetary atmospheres have found no definite correlations between observed high-altitude aerosols and other system parameters. This could be, in part, because of the lack of homogeneous exoplanet samples for which specific parameters can be
Chima D. McGruder, Mercedes López-Morales, Rafael Brahm, Andrés Jordán   +3 more
doaj   +1 more source

Theoretical Spectra of Terrestrial Exoplanet Surfaces [PDF]

, 2012
We investigate spectra of airless rocky exoplanets with a theoretical framework that self-consistently treats reflection and thermal emission. We find that a silicate surface on an exoplanet is spectroscopically detectable via prominent Si-O features in ...
Batalha, Best, Bethany L. Ehlmann, Borucki, Borucki, Cheek, Clark, Clark, Cochran, Cowan, de Pater, Drilling, Farmer, Gautier, Koch, Miller-Ricci, Muirhead, Pieters, Pieters, RELAB Spectral Database, Renyu Hu, Rogers, Salisbury, Sara Seager, Seager, Seager, Sobolev, Sprague, Winn   +28 more
core   +2 more sources

Detection of Atmospheric Escape from Four Young Mini-Neptunes

The Astronomical Journal, 2023
We use Keck/NIRSPEC to survey a sample of of young (
Michael Zhang, Heather A. Knutson, Fei Dai, Lile Wang, George R. Ricker, Richard P. Schwarz, Christopher Mann, Karen Collins   +7 more
doaj   +1 more source

Atmospheric circulation of exoplanets

地球与行星物理论评, 2023
To date, more than 5000 exoplanets and more than 2000 brown dwarfs have been confirmed, which shows rich diversities in many aspects. With the rapid growth of the planet family, both observational and theoretical research on exoplanet atmosphere is ...
Yuchen Lian, Yongyun Hu
doaj   +1 more source

SPECULOOS exoplanet search and its prototype on TRAPPIST [PDF]

, 2017
One of the most significant goals of modern science is establishing whether life exists around other suns. The most direct path towards its achievement is the detection and atmospheric characterization of terrestrial exoplanets with potentially habitable
A Burrows, A Collier Cameron, A Wolszczan, Adam J. Burgasser, AR Belu, B Goldman, C Hayashi, C Terquem, CH Blake, CP Johnstone, D Deming, D Kubas, E Agol, E Berger, E Bolmont, E Bolmont, E Jehin, EE Mamajek, ET Whelan, Eunkyu Han, GÁ Bakos, IN Reid, IN Reid, J Leconte, J Muzerolle, J Wit de, J Wit de, J. Schneider, JCB Papaloizou, JD Kirkpatrick, JD Kirkpatrick, JE Gizis, JE Owen, JE Owen, JK Barstow, JN Winn, JS Pineda, KL Luhman, KL Luhman, KL Luhman, L Kaltenegger, L Ricci, L Zeng, M Gillon, M Gillon, M Gillon, M Gillon, M Jura, M Mayor, MC Cushing, MJ Holman, MJ Payne, MY He, P Cresswell, P. Figueira, Philip S. Muirhead, PJ Wheatley, PS Muirhead, R Klein, R Luger, R Luger, R Montgomery, RK Kopparapu, RL Akeson, S Ballard, S Jin, S Seager, S Seager, Sergio B. Dieterich, SJ Schmidt, SN Raymond, SS Kumar, SS Kumar, Stanimir A. Metchev, V Bourrier, X Bonfils, Y Alibert, Y Shvartzvald, ZK Berta   +78 more
core   +1 more source

Helium Atmospheres on Warm Neptune- and Sub-Neptune-Sized Exoplanets and Applications to GJ 436 b [PDF]

, 2015
Warm Neptune- and sub-Neptune-sized exoplanets in orbits smaller than Mercury's are thought to have experienced extensive atmospheric evolution. Here we propose that a potential outcome of this atmospheric evolution is the formation of helium-dominated ...
Hu, Renyu, Seager, Sara, Yung, Yuk L.
core   +3 more sources

Modelling compositional convection for applications to exoplanet atmospheres

, 2023
Characterizing the climates of exoplanets— planets orbiting other stars —advances our knowledge of atmospheric science, planetary formation, internal structures and will eventually lead to the holy grail of exoplanet science, detecting biosignatures of alien life. This study focuses on atmospheric convection in super-Earth and sub-Neptune exoplanets, a
openaire   +1 more source

Nitrogen as a Tracer of Giant Planet Formation. I. A Universal Deep Adiabatic Profile and Semianalytical Predictions of Disequilibrium Ammonia Abundances in Warm Exoplanetary Atmospheres

The Astrophysical Journal, 2023
A major motivation of spectroscopic observations of giant exoplanets is to unveil planet formation processes from atmospheric compositions. Several recent studies suggested that atmospheric nitrogen, like carbon and oxygen, can provide important ...
Kazumasa Ohno, Jonathan J. Fortney
doaj   +1 more source

The ARCiS framework for Exoplanet Atmospheres: The Cloud Transport Model [PDF]

, 2019
Understanding of clouds is instrumental in interpreting current and future spectroscopic observations of exoplanets. Modelling clouds consistently is complex, since it involves many facets of chemistry, nucleation theory, condensation physics ...
Min, Michiel, Ormel, Chris W.
core   +2 more sources