Results 31 to 40 of about 4,707 (204)

The Response of Broadband Kilometric Radiation to Compressions of the Jovian Magnetosphere

open access: yesThe Astrophysical Journal
In the planetary magnetosphere, plasma waves act as the medium for particles to transfer energy. Jupiter is the largest planet in our solar system, and the giant magnetosphere is full of energetic particles, producing intense radio emissions.
Yuening Chen   +3 more
doaj   +1 more source

Coherent Radio Emission from a Twisted Magnetosphere after a Magnetar-quake [PDF]

open access: yesThe Astrophysical Journal, 2019
Abstract Magnetars are a class of highly magnetized, slowly rotating neutron stars, only a small fraction of which exhibit radio emission. We propose that the coherent radio curvature emission is generated by net charge fluctuations from a twist-current-carrying bundle (the j-bundle) in the scenario of magnetar-quake.
Weiyang Wang   +3 more
openaire   +3 more sources

Modeling Ganymede's Surface Charging in Preparation for the JUICE Mission

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The European Space Agency's (ESA) JUICE mission (JUpiter ICy moons Explorer) is en route to the Jovian system to characterize Ganymede's subsurface ocean. Determining the ocean's conductivity and depth requires precise measurements of its induced magnetic field at the position of JUICE.
Betty Pei‐Chun Tsai   +10 more
wiley   +1 more source

ROME. IV. An Arecibo Search for Substellar Magnetospheric Radio Emissions in Purported Exoplanet-hosting Systems at 5 GHz

open access: yesThe Astrophysical Journal
Plasma flow–obstacle interactions, such as those between an exoplanet’s magnetosphere and the host star’s stellar wind, may lead to detectable radio emissions.
Matthew Route
doaj   +1 more source

Enabling High‐Fidelity Wave‐Particle Interaction Studies: A Novel Filtering for Isolating Whistlers From Spacecraft Noise

open access: yesGeophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Resolving the mixture of natural plasma waves and persistent spacecraft interference is a fundamental challenge in space physics, as it obstructs the analysis of wave‐particle interactions and energy transport processes. Traditional signal decomposition methods often fail to adequately separate these components due to their time‐varying ...
Fulin Shi   +6 more
wiley   +1 more source

Enhancing Low‐Latitude Ionospheric Irregularity Prediction With Generalized Linear Models

open access: yesSpace Weather, Volume 24, Issue 3, March 2026.
Abstract The ionosphere poses challenges for accurate forecasting due to its complexity and variability. Irregularities in the lower ionosphere are influenced by local time, season, geographic location, solar activity and space weather, complicating precise predictions.
Alysson Brhian   +4 more
wiley   +1 more source

Radio Pulsar B0950+08: Radiation in the Magnetosphere and Sparks above the Surface

open access: yesThe Astrophysical Journal
We observed the nearby radio pulsar B0950+08, which has a 100% duty cycle, using the Five-hundred-meter Aperture Spherical Radio Telescope. We obtained the polarization profile for its entire rotation, which enabled us to investigate its magnetospheric ...
Zhengli Wang   +9 more
doaj   +1 more source

Strong Polar Ionospheric Electron Density Depletion Under Prolonged Northward IMF Bz Condition

open access: yesEarth and Space Science, Volume 13, Issue 3, March 2026.
Abstract Previous studies have primarily focused on high‐latitude ionospheric‐thermospheric (I‐T) variabilities under southward interplanetary magnetic field (IMF) conditions, while rare studies have investigated the I‐T responses to due northward Bz (NBz), especially in the presence of strong IMF By conditions.
Tianyu Cao   +3 more
wiley   +1 more source

A Blind Search for Magnetospheric Emissions from Planetary Companions to Nearby Solar-type Stars

open access: yes, 2009
This paper reports a blind search for magnetospheric emissions from planets around nearby stars. Young stars are likely to have much stronger stellar winds than the Sun, and because planetary magnetospheric emissions are powered by stellar winds ...
Aubier   +33 more
core   +1 more source

Preservation of Historically and Scientifically Important Geospatial Data From Venus

open access: yesEarth and Space Science, Volume 13, Issue 3, March 2026.
Abstract A large volume of scientifically and historically important data from the early exploration of Venus is not widely available to researchers. Our work is focused on ameliorating this problem with the archival of geospatial data including radar, topography, and radiometry.
T. J. Austin   +2 more
wiley   +1 more source

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