Results 31 to 40 of about 1,109,066 (343)

Periodic Fast Radio Bursts with Neutron Star Free Precession [PDF]

open access: yesAstrophysical Journal, 2020
The CHIME/FRB collaboration recently reported the detection of a 16 day periodicity in the arrival times of radio bursts from FRB 180916.J0158+65. We study the possibility that the observed periodicity arises from free precession of a magnetized neutron ...
J. J. Zanazzi, Dong Lai, Dong Lai
semanticscholar   +1 more source

Respiration and Activity Detection Based on Passive Radio Sensing in Home Environments

open access: yesIEEE Access, 2020
The pervasive deployment of connected devices in modern society has significantly changed the nature of the wireless landscape, especially in the license free industrial, scientific and medical (ISM) bands.
Qingchao Chen   +4 more
doaj   +1 more source

Fundamental–Harmonic Pairs of Interplanetary Type III Radio Bursts

open access: yesThe Astrophysical Journal Letters, 2023
Type III radio bursts are not only the most intense but also the most frequently observed solar radio bursts. However, a number of their defining features remain poorly understood.
Immanuel Christopher Jebaraj   +4 more
doaj   +1 more source

A mechanism for fast radio bursts [PDF]

open access: yes, 2015
Fast radio bursts are mysterious transient sources likely located at cosmological distances. The derived brightness temperatures exceed by many orders of magnitude the self-absorption limit of incoherent synchrotron radiation, implying the operation of a
del Valle, Maria Victoria   +2 more
core   +3 more sources

Imaging Spectroscopy of Type U and J Solar Radio Bursts with LOFAR [PDF]

open access: yes, 2017
Radio U-bursts and J-bursts are signatures of electron beams propagating along magnetic loops confined to the corona. The more commonly observed type III radio bursts are signatures of electron beams propagating along magnetic loops that extend into ...
Kontar, Eduard P., Reid, Hamish A. S.
core   +2 more sources

A deep learning method for the recognition of solar radio burst spectrum [PDF]

open access: yesPeerJ Computer Science, 2022
Solar radiation is the excitation source that affects the weather in the atmosphere of the earth, and some solar activities such as flares and coronal mass ejections are often accompanied by radio bursts. The spectrum of solar radio bursts is helpful for
Jun-Cheng Guo   +4 more
doaj   +2 more sources

Fast Radio Bursts and Their High-energy Counterparts from Magnetar Magnetospheres [PDF]

open access: yesAstrophysical Journal, 2021
The recent discovery of a Galactic fast radio burst (FRB) occurring simultaneously with an X-ray burst (XRB) from the Galactic magnetar SGR J1935+2154 implies that at least some FRBs arise from magnetar activities.
Yuanpei Yang, Bing Zhang
semanticscholar   +1 more source

Plasmoid Ejection by Alfvén Waves and the Fast Radio Bursts from SGR 1935+2154 [PDF]

open access: yesAstrophysical Journal, 2020
Using numerical simulations we show that low-amplitude Alfvén waves from a magnetar quake propagate to the outer magnetosphere and convert to “plasmoids” (closed magnetic loops) that accelerate from the star, driving blast waves into the magnetar wind ...
Yajie Yuan   +3 more
semanticscholar   +1 more source

Radio Astronomical Tools for the Study of Solar Energetic Particles II.Time-Extended Acceleration at Subrelativistic and Relativistic Energies

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Solar energetic particle (SEP) events are commonly separated in two categories: numerous “impulsive” events of relatively short duration, and a few “gradual” events, where SEP-intensities may stay enhanced over several days at energies up to several tens
Karl-Ludwig Klein
doaj   +1 more source

Observations of Solar Type III radio bursts by Cassini/RPWS experiment [PDF]

open access: yesAdvances in Radio Science, 2020
In this study, we report on the occurrence of solar Type III radio bursts recorded by radio and plasma wave experiment (RPWS) experiment onboard Cassini spacecraft.
M. Y. Boudjada   +4 more
doaj   +1 more source

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