Results 141 to 150 of about 3,808,369 (275)

Planet–Planet Scattering Explains the Mass–Eccentricity Relation of Warm Jupiters

The Astrophysical Journal Letters
Warm Jupiters—giant planets with orbital periods of ∼10–365 days—exhibit a positive correlation between mass and eccentricity. We interpret this trend as the outcome of planet–planet scattering, representing a transition from collision-dominated ...
Jiayin Dong, Eve J. Lee, Eiichiro Kokubo, Ruth Murray-Clay, Arvind Gupta, Gavin Turner   +5 more
doaj   +1 more source

Gaps and rings: a near-universal trait of extended protoplanetary discs

Astronomy & Astrophysics
Context. Substructures such as rings, gaps, and cavities are commonly observed in protoplanetary discs and are thought to play a key role in dust evolution and planet formation.
Bosschaart Q., Guerra-Alvarado O. M., van der Marel N., Mulders G. D.   +3 more
doaj   +1 more source

A Search for Collisions and Planet–Disk Interactions in the Beta Pictoris Disk with 26 Years of High-precision HST/STIS Imaging

The Astrophysical Journal
Abstract β Pictoris's well-studied debris disk and two known giant planets, in combination with the stability of the Hubble Space Telescope’s Space Telescope Imaging Spectrograph (HST/STIS) (and now also JWST), offers a unique opportunity to test planet–disk interaction models and to observe recent planetesimal ...
Arin M. Avsar, Kevin Wagner, Dániel Apai, Christopher C. Stark, Mark C. Wyatt   +4 more
openaire   +3 more sources

Rational Design Strategies Toward Efficient and Stable Electrocatalysts for Hydrogen Production via Water Electrolysis: A Comprehensive Review

Small, EarlyView.
ABSTRACT Active and stable electrocatalysts are critical for sustainable hydrogen production, particularly for high‐current‐density water electrolysis and specialized applications like seawater splitting. However, most water‐splitting electrocatalysts show limited activity at high current densities and poor long‐term stability, making it difficult to ...
Nikhil Komalla, Nelson Y. Dzade
wiley   +1 more source

exoALMA. XVII. Characterizing the Gas Dynamics around Dust Asymmetries

The Astrophysical Journal Letters
The key planet-formation processes in protoplanetary disks remain an active matter of research. One promising mechanism to radially and azimuthally trap millimeter-emitting dust grains, enabling them to concentrate and grow into planetesimals, is ...
Lisa Wölfer, Marcelo Barraza-Alfaro, Richard Teague, Pietro Curone, Myriam Benisty, Misato Fukagawa, Jaehan Bae, Gianni Cataldi, Ian Czekala, Stefano Facchini, Daniele Fasano, Mario Flock, Maria Galloway-Sprietsma, Himanshi Garg, Cassandra Hall, Jane Huang, John D. Ilee, Andrés F. Izquierdo, Kazuhiro Kanagawa, Geoffroy Lesur, Cristiano Longarini, Ryan A. Loomis, Francois Menard, Anika Nath, Ryuta Orihara, Christophe Pinte, Daniel J. Price, Giovanni Rosotti, Jochen Stadler, Gaylor Wafflard-Fernandez, Andrew J. Winter, Hsi-Wei Yen, Tomohiro C. Yoshida, Brianna Zawadzki   +33 more
doaj   +1 more source

DNA Coordination Engineering of Dual‐Metal Prussian Blue Analogs for Accelerated Zn2+ Storage

Small, EarlyView.
A sustainable DNA‐assisted strategy was developed to regulate the growth of CuMn‐HCF, producing a porous hierarchical structure with abundant active sites. The optimized CuMn‐HCF‐D7 electrode exhibited enhanced Zn2+ storage kinetics, high reversible capacity, and exceptional cycling stability over 30 000 cycles, demonstrating its potential as a durable
Anjana Puthanpurayil Jayarajan, Nagalakshmi Motupalli, Surya Kiran Ampasala, Naveen Chilamkurthi, Samanth Kokkiligadda, Soong Ho Um   +5 more
wiley   +1 more source

A multi-fluid approach for polydisperse pebble accretion

Astronomy & Astrophysics
Context. Pebble accretion offers an efficient pathway to form planets, driven by a constant supply of inward drifting mass and an accretion efficiency enhanced by gas drag. While most studies assume a single pebble size (monodisperse), real discs contain
Konijn T. J., Paardekooper S.-J.
doaj   +1 more source

Precise Nanoscale Mapping of Electric Fields Across Random Grain Boundaries in Polycrystalline Oxides Using Precession‐Assisted 4D‐STEM

Small, EarlyView.
Correlative singular value decomposition 4D‐STEM analysis of the potential, electric field, and charge density distributions with crystal orientation, strain across grain boundaries in polycrystalline materials. ABSTRACT Space charge layers (SCLs) at grain boundaries play a crucial role in modulating electric fields and thereby influence functional ...
Sangjun Kang, Hyeyoung Cho, Maximilian Töllner, Anna Rose Nelson, Ziming Ding, Xiaoke Mu, Di Wang, Wolfgang Rheinheimer, Kai Wang, Bai‐Xiang Xu, Jakob Konstantin Laux, Mahmoud Serour, Karsten Albe, Andreas Klein, Christian Kübel   +14 more
wiley   +1 more source

Rapid and predictive planet population synthesis model (RAPPS)

Astronomy & Astrophysics
Context. Exoplanet surveys have revealed a large diversity of planetary systems. Explaining the origin of such diversity requires integrated models of planet formation.
Kimura Tadahiro, Ikoma Masahiro
doaj   +1 more source

Microfluidic Molecular Diagnostic Chips: Functional Modules, Integration Strategies, and Emerging Applications

Small Methods, EarlyView.
This comprehensive review delivers an engineering‐centric analysis of microfluidic molecular diagnostic chips, breaking them down into foundational modules from fluid manipulation to bio‐sensing. Beyond chip design, it evaluates sample‐to‐answer integration strategies and commercial readiness levels.
Donghoon Koo, Egor Kokin, Sangyul Baik, Chanyong Park, Minji Kim, Jeongmin Kim, Ryungeun Song, Hosub Lim   +7 more
wiley   +1 more source