Results 91 to 100 of about 20,871 (275)

The JWST/NIRISS Deep Spectroscopic Survey for Young Brown Dwarfs and Free-floating Planets

The Astronomical Journal
The discovery and characterization of free-floating planetary-mass objects (FFPMOs) is fundamental to our understanding of star and planet formation. Here we report results from an extremely deep spectroscopic survey of the young star cluster NGC1333 ...
Adam B. Langeveld, Aleks Scholz, Koraljka Mužić, Ray Jayawardhana, Daniel Capela, Loïc Albert, René Doyon, Laura Flagg, Matthew de Furio, Doug Johnstone, David Lafrèniere, Michael Meyer   +11 more
doaj   +1 more source

Copper–Collagen Interactions Regulate the Mechanical and Invasive Properties of Tumor Spheroids

Advanced Healthcare Materials, EarlyView.
Ionic copper is investigated as a modulator of tumor spheroid growth and invasiveness in a 3D microfluidic glioblastoma model. Copper exposure alters metabolic activity, cytoskeletal organization, protrusion dynamics, and EMT‐related phenotypes in a dose‐ and timing‐dependent manner, revealing how copper bioavailability shapes tumor aggressiveness ...
Paula Guerrero‐López, Jose I. Garcia‐Peiro, Felipe Hornos, Jose L. Hueso, Jesus Santamaria, J. Manuel Garcia‐Aznar   +5 more
wiley   +1 more source

Analytical Solutions for Planet-scattering Small Bodies

The Astronomical Journal
Gravitational scattering of small bodies (planetesimals) by a planet remains a fundamental problem in celestial mechanics. It is traditionally modeled within the circular restricted three-body problem, where individual particle trajectories are obtained ...
Yukun Huang, Brett Gladman, Eiichiro Kokubo   +2 more
doaj   +1 more source

Multiple-Planet Scattering and the Origin of Hot Jupiters

, 2011
Exoplanets show a pile-up of Jupiter-size planets in orbits with a 3-day period. A fraction of these hot Jupiters have retrograde orbits with respect to the parent star's rotation.
Beutler, C. Beaugé, Chatterjee, D. Nesvorný, Darwin, Duncan, Fabrycky, Hansen, Hut, Jackson, Juric, Lai, Lai, Levison, Lidov, Marchal, Mardling, Matsumura, Mayor, McArthur, Moeckel, Morbidelli, Nagasawa, Nagasawa, Schlaufman, Thommes, Throop, Winn, Wu, Wu   +29 more
core   +1 more source

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

Advanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner, Enis Oğuzhan Eren, Elif Begüm Yılmaz, Jiyong Kim, Ernesto Scoppola, Alexandros Vasileiadis, Nadezda V. Tarakina, Markus Antonietti, Paolo Giusto, Evgeny Senokos   +9 more
wiley   +1 more source

Dynamics of Binary Planets within Star Clusters

The Astrophysical Journal Letters
We develop analytical tools and perform three-body simulations to investigate the orbital evolution and dynamical stability of binary planets within star clusters.
Yukun Huang, Wei Zhu, Eiichiro Kokubo
doaj   +1 more source

Hybrid Model for Efficient Anomaly Detection in Short-timescale GWAC Light Curves and Similar Datasets

Труды Института системного программирования РАН, 2019
Early warning during sky survey provides a crucial opportunity to detect low-mass, free-floating planets. In particular, to search short-timescale microlensing (ML) events from high-cadence and wide- field survey in real time, a hybrid method which ...
Ying Sun, Zijun Zhao, Xiaobin Ma, Zhihui Du   +3 more
doaj   +1 more source

The Galactic Exoplanet Survey Telescope (GEST)

, 2002
The Galactic Exoplanet Survey Telescope (GEST) will observe a 2 square degree field in the Galactic bulge to search for extra-solar planets using a gravitational lensing technique.
Bally, J., Bennett, D. P., Bond, I., Cheng, E., Cook, K., Deming, D., Garnavich, P., Griest, K., Jewitt, D., Kaiser, N., Lauer, T., Lunine, J., Luppino, G., Mather, J., Minniti, D., Peale, S., Rhie, S., Rhodes, J., Schneider, J., Sonneborn, G., Stevenson, R., Stubbs, C., Tenerelli, D., Woolf, N., Yock, P.   +24 more
core   +1 more source

Porosity Engineering of MXene Architectures: Toward High‐Performance Aqueous Electrochemical Energy Storage

Advanced Materials, EarlyView.
This review systematically summarizes recent advances in porosity engineering of MXenes, with a focused discussion on their structure‐governed energy storage properties. A critical analysis of structure–property relationships is presented across alkali‐ion batteries, multivalent‐ion batteries, and supercapacitors.
Shude Liu, Jieming Chen, Xue Peng, Huilin Zhang, Ling Kang, Ming Ma, Zhaoling Li, Yusuke Yamauchi, Bin Ding   +8 more
wiley   +1 more source

Water Production of Interstellar Comet 3I/ATLAS from SOHO/SWAN Observations after Perihelion

The Astrophysical Journal Letters
The Solar Wind Anisotropies all-sky hydrogen Lyman-alpha camera on the Solar and Heliosphere Observatory observed the hydrogen coma of interstellar comet 3I/ATLAS, also called C/2025 N1 (ATLAS), beginning on 2025 November 6, 9 days after perihelion ...
M. R. Combi, T. Mäkinen, J. L. Bertaux, E. Quémerais, S. Ferron, R. Lallement, W. Schmidt   +6 more
doaj   +1 more source