Results 121 to 130 of about 892,024 (248)
The Astronomical JournalA significant fraction of hot Jupiters have orbital axes misaligned with their host stars’ spin axes. The large stellar obliquities of these giants have long been considered potential signatures of high-eccentricity migration, which is expected to clear ...
Brandon T. Radzom +7 more
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EPJ Web of Conferences, 2013 The WFCAM Transit Survey (WTS) is a near-infrared transit survey running on the United Kingdom Infrared Telescope (UKIRT). We conduct Monte Carlo transit injection and detection simulations for short period (
Murgas F. +13 more
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Hierarchical Bayesian calibration of tidal orbit decay rates among hot Jupiters [PDF]
, 2018 Transiting hot Jupiters occupy a wedge-shaped region in the mass ratio-orbital separation diagram. Its upper boundary is eroded by tidal spiral-in of massive, close-in planets and is sensitive to the stellar tidal dissipation parameter $Q_s'$. We develop
A. Cameron, M. Jardine
semanticscholar +1 more source
Journal of Geophysical Research: Space Physics, Volume 130, Issue 6, June 2025.Abstract A set of magnetohydrodynamic equations is developed for multiple ion species in the limit of small Larmor radius. The derivation proceeds to explicitly calculate the Lorentz force resulting from the small ion drift velocities. The net effect is that in this limit all the ions move perpendicular to the magnetic field with the same E×B $\mathbf ...
J. G. Lyon +3 more
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Separating Super-puffs versus Hot Jupiters among Young Puffy Planets
The Astrophysical JournalDiscoveries of close-in young puffy ( R _p ≳ 6 R _⊕ ) planets raise the question of whether they are bona fide hot Jupiters or puffed-up Neptunes, potentially placing constraints on the formation location and timescale of hot Jupiters.
Amalia Karalis +2 more
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Zeitschrift für anorganische und allgemeine Chemie, Volume 651, Issue 8, May 28, 2025.The addition of Mg2+ ions to a solution of [Fe(CN)6]3− and HMT (HMT = hexamethylenetetramine or urotropine) leads to the formation of [Mg3(H2O)14][Fe(CN)6]2(C6H12N4)4(H2O)4.18 and represents a test tube reaction for Mg2+ ions. The thermal decomposition of the compound yields ferromagnetic Fe3C.
Markus Ströbele +4 more
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Spin and Obliquity Evolution of Hot Jupiter Hosts from Resonance Locks
The Astrophysical JournalWhen a hot Jupiter orbits a star whose effective temperature exceeds ∼6100 K, its orbit normal tends to be misaligned with the stellar spin axis. Cooler stars typically have smaller obliquities, which may have been damped by hot Jupiters in resonance ...
J. J. Zanazzi, Eugene Chiang
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Predictions of Auroral Electron Precipitation and Joule Heating at Uranus
Geophysical Research Letters, Volume 52, Issue 9, 16 May 2025.Abstract The precipitation of electrons and Joule heating are key processes through which energy is transferred from Uranus' magnetosphere to its upper atmosphere. These processes drive atmospheric ionization, thermospheric heating, and auroral emission at Uranus.
Daniel J. Gershman, George Clark
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The Astronomical JournalHot Jupiters were many of the first exoplanets discovered in the 1990s, but in the decades since their discovery the mysteries surrounding their origins have remained. Here we present nine new hot Jupiters (TOI-1855 b, TOI-2107 b, TOI-2368 b, TOI-3321 b,
Jack Schulte +74 more
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Batteries &Supercaps, Volume 8, Issue 5, May 2025.This study explores an effective and sustainable solid‐state relithiation process to recycle NMC532 cathode materials from production scrap and end‐of‐life batteries, restoring their structure and electrochemical performance to near‐pristine levels. Abstract Direct recycling of Li‐ion battery cathodes offers a sustainable and potentially cost‐effective
Lucas Evangelista Sita +6 more
wiley +1 more source