Results 51 to 60 of about 104,383 (339)

Ohmic Dissipation in the Atmospheres of Hot Jupiters

, 2010
Hot Jupiter atmospheres exhibit fast, weakly-ionized winds. The interaction of these winds with the planetary magnetic field generates drag on the winds and leads to ohmic dissipation of the induced electric currents.
Baraffe, Batygin, Burrows, Burrows, Charbonneau, Cooper, Dobbs-Dixon, Emily Rauscher, Gu, Hansen, Ibgui, Iro, Kristen Menou, Laine, Liu, Perna, Rauscher, Rosalba Perna, Sanchez-Lavega, Showman, Showman   +20 more
core   +1 more source

Near-infrared transit photometry of the exoplanet HD 149026b [PDF]

, 2008
The transiting exoplanet HD 149026b is an important case for theories of planet formation and planetary structure, because the planet's relatively small size has been interpreted as evidence for a highly metal-enriched composition.
Amendola, Broeg, Brown, Burke, Burrows, Carter, Charbonneau, Charbonneau, Claret, Demarque, Ford, Fortney, Fortney, Gilliland, Holman, Hubbard, Ikoma, Johns-Krull, Joshua A. Carter, Joshua N. Winn, Levenberg, Lourakis, Madhusudhan, Mandel, Masana, Matthew J. Holman, Nutzman, Ronald Gilliland, Sato, Seager, Seager, Sozzetti, Torres, Winn, Winn, Winn, Yi   +36 more
core   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Interior Models of Saturn: Including the Uncertainties in Shape and Rotation [PDF]

, 2013
The accurate determination of Saturn's gravitational coefficients by Cassini could provide tighter constrains on Saturn's internal structure. Also, occultation measurements provide important information on the planetary shape which is often not ...
Guillot, Tristan, Helled, Ravit
core   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Signatures of Planets in Spatially Unresolved Disks [PDF]

, 2005
Main sequence stars are commonly surrounded by debris disks, composed of cold dust continuously replenished by a reservoir of undetected dust-producing planetesimals. In a planetary system with a belt of planetesimals (like the Solar System's Kuiper Belt)
Amaya Moro‐Martin, Dorschner J., Henning T., Henning T., Jager C., Labs D., Malfait K., Mouillet D., Pantin E., Renu Malhotra, Sebastian Wolf, Warren S. G.   +11 more
core   +1 more source

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

Advanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro, Telmo Lopes, André F. Silva, Carmel Majidi, Mahmoud Tavakoli   +4 more
wiley   +1 more source

Chemical Mapping of Temperate Sub-Neptune Atmospheres: Constraining the Deep Interior H2O/H2 Ratio from the Atmospheric CO2/CH4 Ratio

The Astrophysical Journal Letters
Understanding the planetary envelope composition of sub-Neptune-type exoplanets is challenging due to the inherent degeneracy in their interior composition scenarios.
Jeehyun Yang, Renyu Hu
doaj   +1 more source

Coreless Terrestrial Exoplanets

, 2008
Differentiation in terrestrial planets is expected to include the formation of a metallic iron core. We predict the existence of terrestrial planets that have differentiated but have no metallic core--planets that are effectively a giant silicate mantle.
Blundell D., Dreibus G., Elkins-Tanton L. T., Jarosewich E., Linda T. Elkins‐Tanton, Mysen B. O., Sara Seager   +6 more
core   +1 more source

On the Role of Dissolved Gases in the Atmosphere Retention of Low-Mass Low-Density Planets [PDF]

, 2018
Low-mass low-density planets discovered by Kepler in the super-Earth mass regime typically have large radii for their inferred masses, implying the presence of H$_2$-He atmospheres.
Chachan, Yayaati, Stevenson, David J.
core   +3 more sources