Results 71 to 80 of about 279 (164)

PSR B0943+10: Mode Switch, Polar Cap Geometry, and Orthogonally Polarized Radiation

open access: yesThe Astrophysical Journal
As one of the paradigm examples to probe into pulsar magnetospheric dynamics, PSR B0943+10 (J0946+0951) manifests representatively, showing a mode switch, orthogonal polarization, and subpulse drifting, frequently studied below 600 MHz.
Shunshun Cao   +12 more
doaj   +1 more source

Crustal Quakes Spark Magnetospheric Blasts: Imprints of Realistic Magnetar Crust Oscillations on the Fast Radio Burst Signal

open access: yesThe Astrophysical Journal Letters
Many transients believed to originate from magnetars are thought to be triggered by crustal activity, which feeds back on the surrounding magnetosphere. These perturbations, through a variety of proposed mechanisms, can convert a fraction of the magnetic
Louis Burnaz   +2 more
doaj   +1 more source

Candidates for detecting exoplanetary radio emissions generated by magnetosphere—ionosphere coupling [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2012
Abstract In this Letter we consider the magnetosphere—ionosphere (M—I) coupling at Jupiter-like exoplanets with internal plasma sources such as volcanic moons, and we have determined the best candidates for detection of these radio emissions by estimating the maximum spectral flux density expected from planets orbiting stars within 25 pc
openaire   +2 more sources

Periodically Modulated Magnetic Reconnection

open access: yesThe Astrophysical Journal
We present the first evidence for periodically modulated reconnection at the electron scale in space, using unparalleled, high-cadence data from Magnetospheric Multiscale spacecraft.
Chengming Liu   +4 more
doaj   +1 more source

A Jovian Decametric Emission Event Observed Locally by Juno and Remotely by Wind and STEREO-A at 1 au

open access: yesThe Astrophysical Journal
Juno in situ observations provide insightful data on plasma, electric, and magnetic fields associated with Jovian decametric (DAM) emission, while remote-sensing observations offer broader spatial and temporal coverage.
Ruobing Zheng   +2 more
doaj   +1 more source

A Nonstop Aurora? The Intriguing Radio Emission from the Rapidly Rotating Magnetic Massive Star HR 5907

open access: yesThe Astrophysical Journal
HR 5907 (HD 142184) stands out among magnetic OB stars for its rapid rotation, exceptionally hard X-ray emission, and strong magnetic field. High-frequency (>5 GHz) radio emission from the star exhibits an approximately flat spectrum that can be ...
Ayan Biswas   +4 more
doaj   +1 more source

Origin of Pulsed Radio Emission from Magnetars

open access: yesThe Astrophysical Journal Letters
Extended periods of radio pulsations have been observed for six magnetars, displaying characteristics different from those of ordinary pulsars.
Shuzhe Zeng   +4 more
doaj   +1 more source

Modeling the transport and anisotropy of energetic electrons in solar flares

open access: yesFrontiers in Astronomy and Space Sciences
Transport of energetic electrons in the flare loop is important to understanding nonthermal emissions in solar flares. In this work, we model the propagation of electrons by numerically solving the particle transport equation which includes the physics ...
Xiangliang Kong   +5 more
doaj   +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

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