Results 91 to 100 of about 176,490 (172)

Extrasolar planets : - From gaseous giant planets to rocky planets. - Steps towards the detection of life biomarkers.

, 2017
Discoveries done during the last two decades have revealed the impressive diversity of extrasolar planetary systems. A diversity challenging our understanding of  mechanisms of formation and evolution.
Mayor, Michel
core  

Carbon Cycle Imbalances on Arid Terrestrial Planets with Implications for Venus

The Planetary Science Journal
Arid terrestrial exoplanets are potentially abundant and are thus interesting targets in the search for life. In particular, M-dwarf planets such as those in the TRAPPIST-1 system may possess limited surface water, whereas early solar system terrestrials
Haskelle T. White-Gianella, Joshua Krissansen-Totton   +1 more
doaj   +1 more source

Structure and density of silicon carbide to 1.5 TPa and implications for extrasolar planets. [PDF]

Nat Commun, 2022
Kim D, Smith RF, Ocampo IK, Coppari F, Marshall MC, Ginnane MK, Wicks JK, Tracy SJ, Millot M, Lazicki A, Rygg JR, Eggert JH, Duffy TS.   +12 more
europepmc   +1 more source

The Exozodi Spectral Effect: Residual Habitable Zone Dust May Bias exoEarth Characterization

The Astronomical Journal
All exoplanetary systems are expected to host exozodiacal dust, or exozodi, originating from planetesimals. For many stars, exozodi will likely be the largest source of astrophysical noise in direct observations of terrestrial exoplanets. Nearby Sun-like
Miles H. Currie, Christopher C. Stark, Eleonora Alei, Aki Roberge   +3 more
doaj   +1 more source

Role of Magma Oceans in Controlling Carbon and Oxygen of Sub-Neptune Atmospheres

The Astrophysical Journal
Most exoplanets with a few Earth radii are more inflated than bare-rock planets with the same mass, indicating a substantial volatile amount. Neither the origin of the volatiles nor the planet’s bulk composition can be constrained from the mass–radius ...
Chanoul Seo, Yuichi Ito, Yuka Fujii
doaj   +1 more source

Impact of Cosmic Rays on Atmospheric Ion Chemistry and Spectral Transmission Features of TRAPPIST-1e

The Astrophysical Journal
Ongoing observing projects like the James Webb Space Telescope and future missions offer the chance to characterize Earth-like exoplanetary atmospheres. Thereby, M dwarfs are preferred targets for transit observations, for example, due to their favorable
Konstantin Herbst, Andreas Bartenschlager, John Lee Grenfell, Nicolas Iro, Miriam Sinnhuber, Benjamin Taysum, Fabian Wunderlich, N. Eugene Engelbrecht, Juandre Light, Katlego D. Moloto, Jan-Vincent Harre, Heike Rauer, Franz Schreier   +12 more
doaj   +1 more source

Synergies Between Venus & Exoplanetary Observations: Venus and Its Extrasolar Siblings. [PDF]

Space Sci Rev, 2023
Way MJ, Ostberg C, Foley BJ, Gillmann C, Höning D, Lammer H, O'Rourke J, Persson M, Plesa AC, Salvador A, Scherf M, Weller M.   +11 more
europepmc   +1 more source

Magnesium oxide-water compounds at megabar pressure and implications on planetary interiors. [PDF]

Nat Commun, 2023
Pan S, Huang T, Vazan A, Liang Z, Liu C, Wang J, Pickard CJ, Wang HT, Xing D, Sun J.   +9 more
europepmc   +1 more source

Mass – Radius Relationship in Extrasolar Planets [PDF]

, 2011
The increasing number of Extrasolar planets observed in the last years makes important to define, as soon as possible, a mass – radius relationship, and so, we adjusted an planetary constitution independent experimental equation.
Bezzeghoud, Mourad, Santana, M., Santos, N., Caldeira, Bento   +3 more
core  

Ultrahigh-pressure disordered eight-coordinated phase of Mg₂GeO₄: Analogue for super-Earth mantles. [PDF]

Proc Natl Acad Sci U S A, 2022
Dutta R, Tracy SJ, Cohen RE, Miozzi F, Luo K, Yang J, Burnley PC, Smith D, Meng Y, Chariton S, Prakapenka VB, Duffy TS.   +11 more
europepmc   +1 more source