Results 41 to 50 of about 3,544,854 (221)

Magnetic Field of Gas Giant Exoplanets and Its Influence on the Retention of Their Exomoons

open access: yesThe Astrophysical Journal
We study the magnetic and tidal interactions of a gas-giant exoplanet with its host star and with its exomoons, and focus on their retention. We briefly revisit the scaling law for planetary dynamo in terms of its mass, radius, and luminosity.
Xing Wei, D. N. C. Lin
doaj   +1 more source

Investigating the Low‐Temperature Phase Stability of the Binary Ta–W System

open access: yesAdvanced Engineering Materials, EarlyView.
Atomistic simulations show that the binary Ta–W system forms ordered intermetallic phases, B2‐TaW and D03‐TaW3, as 0 K ground states. Configurational entropy, however, lowers the free energy of the disordered bcc solid solution, which becomes the stable phase above about 400 K.
Klemens Lechner   +7 more
wiley   +1 more source

Radio Prospects of Extrasolar Aurorae Polaris as a Probe of Planetary Magnetism

open access: yesThe Astrophysical Journal
Magnetized exoplanets are expected to emit auroral cyclotron radiation in the radio regime due to the interactions between their magnetospheres, the interplanetary magnetic field, and the stellar wind.
Asaf Kaya, Tansu Daylan
doaj   +1 more source

Enhancement of the Through‐Thickness Electrical Conductivity of Carbon‐Fiber‐Reinforced Plastics Using Large Graphite Particles

open access: yesAdvanced Engineering Materials, EarlyView.
To enhance through‐thickness conductivity without sacrificing impregnation, large spherical graphite particles are intentionally employed in a low‐viscosity resin. Unlike finer conductive fillers, these particles remain outside the fiber bundles and accumulate in resin‐rich interlaminar regions during molding.
Keito Hosoe   +6 more
wiley   +1 more source

Star-planet interaction through spectral lines [PDF]

open access: yesProceedings of the International Astronomical Union, 2019
AbstractThe growth of spectroscopic observations of exoplanetary systems allows the possibility of testing theoretical models and studying the interaction that exoplanetary atmospheres have with the wind and the energetic photons from the star.
C. Villarreal D’Angelo   +5 more
openaire   +2 more sources

On close-in magnetized star-planet interactions [PDF]

open access: yes, 2016
We present 2D magnetohydrodynamic simulations performed with the PLUTO code to model magnetized star-planet interactions. We study two simple scenarios of magnetized star-planet interactions: the unipolar and dipolar interactions.
Matt, Sean P.   +2 more
core  

Tilted Circumbinary Planetary Systems as Efficient Progenitors of Free-floating Planets

open access: yesThe Astrophysical Journal Letters
The dominant mechanism for generating free-floating planets has so far remained elusive. One suggested mechanism is that planets are ejected from planetary systems due to planet–planet interactions.
Cheng Chen   +3 more
doaj   +1 more source

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon   +6 more
wiley   +1 more source

Star–planet interaction in the Proxima system

open access: yesAstronomy & Astrophysics
Aims . We search for evidence of star–planet magnetic interactions in the nearby Proxima Centauri planetary system using high-quality, high-spectral-resolution optical observations spanning three years. Methods .
M. R. Zapatero Osorio   +16 more
openaire   +3 more sources

Metrics for Optimizing Searches for Tidally Decaying Exoplanets

open access: yesThe Astronomical Journal, 2023
Tidal interactions between short-period exoplanets and their host stars drive orbital decay and have likely led to engulfment of planets by their stars.
Brian Jackson   +2 more
doaj   +1 more source

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