Results 101 to 110 of about 908,915 (272)

ON THE FORMATION OF HOT JUPITERS IN STELLAR BINARIES [PDF]

The Astrophysical Journal, 2012
We study the production of Hot Jupiters (HJs) in stellar binaries. We show that the "eccentric Kozai-Lidov" (EKL) mechanism can play a key role in the dynamical evolution of a star-planet-star triple system. We run a large set of Monte Carlo simulations including the secular evolution of the orbits, general relativistic precession, and tides, and we ...
Frederic A. Rasio, Smadar Naoz, Smadar Naoz, Will M. Farr   +3 more
openaire   +4 more sources

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

The Spin–Orbit Alignment of Eight Warm Gas Giant Systems

The Astronomical Journal
Essential information about the formation and evolution of planetary systems can be found in their architectures—in particular, in stellar obliquity ( ψ )—as they serve as a signature of their dynamical evolution. Here we present ESPRESSO observations of
Juan I. Espinoza-Retamal, Andrés Jordán, Rafael Brahm, Cristobal Petrovich, Elyar Sedaghati, Guðmundur Stefánsson, Melissa J. Hobson, Marcelo Tala Pinto, Diego J. Muñoz, Gavin Boyle, Rodrigo Leiva, Vincent Suc   +11 more
doaj   +1 more source

Secular Chaos and the Production of Hot Jupiters

, 2010
In a planetary system with two or more well-spaced, eccentric, inclined planets, secular interactions may lead to chaos. The innermost planet may gradually become very eccentric and/or inclined, as a result of the secular degrees of freedom drifting ...
Batygin, Butler, Chatterjee, Eggleton, Fabrycky, Fabrycky, Fischer, Ford, Ford, Fukui, Gaudi, Herbst, Hut, Jurić, Laskar, Lee, Lithwick, Matsumura, McArthur, Milankovitch, Morton, Murray, Nagasawa, Pätzold, Raymond, Shakura, Sterne, Winn, Winn, Winn, Wittenmyer, Wright, Wu, Wu, Wu, Yanqin Wu, Yoram Lithwick, Zucker   +37 more
core   +1 more source

Enhanced Impact Properties of High‐Recycled Content Polycarbonate‐Polybutylene Terephthalate Blends

Polymer Engineering &Science, EarlyView.
Amorphized Morphology of semi‐IPN r‐PC/PBT blends. ABSTRACT Polycarbonate‐polybutylene terephthalate (r‐PC/PBT) blends with recycled content were prepared by compounding post‐industrial recycled (PIR‐mechanical) polycarbonate (r‐PC) from automotive part production with virgin polybutylene terephthalate (PBT).
Nazif Ugur Kaya, Yanling Ge, Manu C. Mulakkal, Jani Pelto   +3 more
wiley   +1 more source

The Formation of Double Hot Jupiter Systems through von Zeipel–Lidov–Kozai Migration

The Astrophysical Journal
The von Zeipel–Lidov–Kozai (ZLK) mechanism with tidal friction has been demonstrated as a promising avenue to generate hot Jupiters in stellar binary systems.
Yurou Liu, Tiger Lu, Malena Rice
doaj   +1 more source

The Aligned Orbit of the Eccentric Proto Hot Jupiter TOI-3362b

The Astrophysical Journal Letters, 2023
High-eccentricity tidal migration predicts the existence of highly eccentric proto hot Jupiters on the “tidal circularization track,” meaning that they might eventually become hot Jupiters, but that their migratory journey remains incomplete.
Juan I. Espinoza-Retamal, Rafael Brahm, Cristobal Petrovich, Andrés Jordán, Guđmundur Stefánsson, Elyar Sedaghati, Melissa J. Hobson, Diego J. Muñoz, Gavin Boyle, Rodrigo Leiva, Vincent Suc   +10 more
doaj   +1 more source

Performance improvement of carbon fiber‐reinforced ABS composites by introducing fullerene nanoparticles

Polymer International, EarlyView.
Fullerene particles were incorporated with CF‐reinforced acrylonitrile–butadiene–styrene terpolymer (ABS) matrix at three different compositions by a melt‐compounding process. These insights are crucial for the optimization of conductive hybrid composites for various applications.
Alinda Öyku Akar, Ümit Hakan Yıldız, Seha Tirkeş, Ümit Tayfun, Ferda Hacivelioglu   +4 more
wiley   +1 more source

The Photoeccentric Effect and Proto-Hot Jupiters I. Measuring photometric eccentricities of individual transiting planets [PDF]

, 2012
Exoplanet orbital eccentricities offer valuable clues about the history of planetary systems. Eccentric, Jupiter-sized planets are particularly interesting: they may link the "cold" Jupiters beyond the ice line to close-in hot Jupiters, which are ...
Bakos, Batalha, Batalha, Borucki, Bowler, Bromley, Burke, Burke, Carter, Chib, Dawson, Dong, Dressing, Fabrycky, Fischer, Fischer, Ford, Ford, Ford, Foreman-Mackey, Gazak, Gilliland, Hansen, Hansen, Ida, Jackson, Jackson, John Asher Johnson, Johnson, Jurić, Kane, Kataria, Kipping, Latham, Lissauer, Mandel, Mann, Mardling, Moorhead, Morton, Morton, Nagasawa, Naoz, Plavchan, Ragozzine, Rebekah I. Dawson, Santerne, Socrates, Spiegel, Valenti, Winn, Winn, Wu, Wu   +53 more
core   +2 more sources

ATMOSPHERIC SULFUR PHOTOCHEMISTRY ON HOT JUPITERS [PDF]

The Astrophysical Journal, 2009
We develop a new 1D photochemical kinetics code to address stratospheric chemistry and stratospheric heating in hot Jupiters. Here we address optically active S-containing species and CO2 at 1200 < T < 2000 K. HS (mercapto) and S2 are highly reactive species that are generated photochemically and thermochemically from H2S with peak abundances ...
Katharina Lodders, Jonathan J. Fortney, Richard S. Freedman, Mark S. Marley, Kevin Zahnle   +4 more
openaire   +4 more sources