Results 51 to 60 of about 708 (150)

Initial Thermal States of Super‐Earth Exoplanets and Implications for Early Dynamos

Journal of Geophysical Research: Planets, Volume 130, Issue 2, February 2025.
Abstract The accretion of Earth and the formation of a metallic core released a large amount of primordial heat and may have enabled its evolution into a habitable world. Metal‐silicate segregation likely occurs in super‐Earth exoplanets as well, but its influence on their initial thermal states has not been fully examined.
Nathaniel I. White, Jie Li
wiley   +1 more source

Modeling of Solar-Stellar Connections and the Heliophysics of Exoplanet Systems

, 2021
In the past two and a half decades, advances in the field of exoplanet detection have confirmed more than 4,000 known planets outside of our Solar System \cite{exoplanets}.
Farrish, Alison O.
core  

Geodynamics of Super‐Earth GJ 486b

Journal of Geophysical Research: Planets, Volume 129, Issue 10, October 2024.
Abstract Many super‐Earths are on very short orbits around their host star and, therefore, more likely to be tidally locked. Because this locking can lead to a strong contrast between the dayside and nightside surface temperatures, these super‐Earths could exhibit mantle convection patterns and tectonics that could differ significantly from those ...
Tobias G. Meier, Dan J. Bower, Tim Lichtenberg, Mark Hammond, Paul J. Tackley, Raymond T. Pierrehumbert, José A. Caballero, Shang‐Min Tsai, Megan Weiner Mansfield, Nicola Tosi, Philipp Baumeister   +10 more
wiley   +1 more source

Migration and Evolution of giant ExoPlanets (MEEP). II. Super-Jupiters and Lithium-rich host stars

Monthly Notices of the Royal Astronomical Society
ABSTRACT Although hot Jupiters were the first exoplanets discovered orbiting main-sequence stars, the dominant mechanisms through which they form and evolve are not known. To address the questions surrounding their origins, the Migration and Evolution of giant ExoPlanets (MEEP) survey aims to create a complete, magnitude-limited ($G& ...
Jack Schulte, Joseph E Rodriguez, David W Latham, Joshua V Shields, Noah Vowell, Melinda Soares-Furtado, Brooke Kotten, Xian-Yu Wang, Karen A Collins, Allyson Bieryla, Samuel N Quinn, Paul Benni, Catherine A Clark, Matthew W Craig, Mara L DeRung, Jason D Eastman, Zahra Essack, Phil Evans, Rebecca Gore, Steve B Howell, John F Kielkopf, Colin Littlefield, Andrew W Mann, Giuseppe Marino, Don J Radford, Chris Stockdale, Ivan A Strakhov, Thiam-Guan Tan, Michael Vezie, Songhu Wang, Emily Watson, Samuel W Yee, Carl Ziegler   +32 more
openaire   +2 more sources

Additive Manufacturing Provides Infinite Possibilities for Self‐Sensing Technology

Advanced Science, Volume 11, Issue 28, July 24, 2024.
Proprioception embedded in biological bodies can be migrated to smart devices, depending on the right configuration of materials and structures in the right place. Additive manufacturing technology can meet this very well, which provides unlimited possibilities for the preparation of self‐sensing intelligent devices.
Daobing Chen, Zhiwu Han, Junqiu Zhang, Longjian Xue, Sheng Liu   +4 more
wiley   +1 more source

Records of migration in the exoplanet configurations

, 2013
When compared to our Solar System, many exoplanet systems exhibit quite unusual planet configurations; some of these are hot Jupiters, which orbit their central stars with periods of a few days, others are resonant systems composed of two or more planets
Michtchenko, Tatiana Alexandrovna, Colucci, Adrian Rodriguez, Santos, Marcos Tadeu dos   +2 more
core  

Constraining stellar tidal quality factors from planet‐induced stellar spin‐up

Astronomische Nachrichten, Volume 345, Issue 5, June 2024.
Abstract The dynamical evolution of tight star‐planet systems is influenced by tidal interactions between the star and the planet, as was shown recently. The rate at which spins and orbits in such a system evolve depends on the stellar and planetary tidal dissipation efficiency. Here, we present a method to constrain the modified tidal quality factor Q*
Nikoleta Ilić, Katja Poppenhaeger, Anna Barbara Queiroz, Cristina Chiappini   +3 more
wiley   +1 more source

Die Suche nach kalten, fremden Welten

Physik in unserer Zeit, Volume 55, Issue 3, Page 140-147, May 2024.
Die meisten der heute bekannten extrasolaren Planeten umkreisen ihren Mutterstern auf engen Umlaufbahnen in weniger als 100 Tagen. Gesteinsplaneten mit größeren Bahnradien sind von herausragender Bedeutung für Theorien der Planetenentstehung. Die Mikrogravitationslinsenmethode bietet eine hervorragende Möglichkeit, solche Planeten zu finden – und das ...
Markus Hundertmark, Yiannis Tsapras
wiley   +1 more source

Atomic‐Scale Study of Intercrystalline (Mg,Fe)O in Planetary Mantles: Mechanics and Thermodynamics of Grain Boundaries Under Pressure

Journal of Geophysical Research: Solid Earth, Volume 129, Issue 5, May 2024.
Abstract Polycrystalline (Mg,Fe)O ferropericlase is the second most abundant mantle constituent of the Earth and possibly of super‐Earth exoplanets. Its mechanical behavior is expected to accommodate substantial plastic deformation in Earth's lower mantle.
Sebastian Ritterbex, Taku Tsuchiya, Martyn Drury, Oliver Plümper   +3 more
wiley   +1 more source

Hot exoplanet atmospheres resolved with transit spectroscopy (HEARTS) : II. A broadened sodium feature on the ultra-hot giant WASP-76b [PDF]

, 2019
High-resolution optical spectroscopy is a powerful tool to characterise exoplanetary atmospheres from the ground. The sodium D lines, with their large cross sections, are especially suited to studying the upper layers of atmospheres in this context.
Ehrenreich, D., Pino, L., Cegla, H. M., Bayliss, D., C. Lovis, Seidel, J.V., K. Heng, A. Wyttenbach, N. Astudillo-Defru, M. Lendl, C. Fisher, B. Lavie, Seidel, J. V., Barrado, D., D. Ségransan, Deline, A., D. Bayliss, Bourrier, V., Heng, K., Pepe, F., H. M. Cegla, Ségransan, D., D. Ehrenreich, C. Melo, L. Pino, F. Pepe, Udry, S., Lavie, Baptiste, Heng, Kevin, A. Deline, Cegla, H.M., D. Barrado, Wyttenbach, A., Allart, R., Fisher, C., V. Bourrier, Joseph, R., Lavie, B., Melo, C., Lendl, M., Astudillo-Defru, N., R. Joseph, Pino, Lorenzo, Lovis, C., S. Udry, J. V. Seidel, R. Allart   +46 more
core   +1 more source