Results 31 to 40 of about 2,630,706 (301)

The Solar Wind in Time II: 3D stellar wind structure and radio emission [PDF]

, 2019
International audienceIn this work, we simulate the evolution of the solar wind along its main-sequence lifetime andcompute its thermal radio emission. To study the evolution of the solar wind, we use a sample ofsolar mass stars at different ages.
Morin, J., BCool Collaboration, ., Folsom, C. P., Do Nascimento, J.-D., do Nascimento, Jr., J.-D, Folsom, C P, Vidotto, A A, Ó Fionnagáin, D., Vidotto, A. A., Petit, P., Ó Fionnagáin, D, Marsden, S C, Petit, P, do Nascimento, J-D, Morin, J, O Fionnagain, D. O., do Nascimento, Jr., J.-D., Jeffers, S.V., Jeffers, S V, Vidotto, A.A., Folsom, C.P., Marsden, S. C., Jeffers, S. V., Marsden, S.C.   +23 more
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On solar protons and polar cap absorption: Constraints on an empirical relationship [PDF]

, 2004
International audienceA large database of Solar Proton Events (SPE) from the period 1995 to 2001 is used to investigate the relationship between proton flux at geostationary orbit and Cosmic Noise Absorption (CNA) in the auroral zone. The effect of solar
A. Senior, Senior, A., S. R. Marple, Kavanagh, A. J., A. J. Kavanagh, Marple, S. R., McCrea, I. W., F. Honary, I. W. McCrea, Honary, F.   +9 more
core   +2 more sources

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

Advances 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, A. Abou el-Fadl, P. H. M. Galopeau, E. Al-Haddad, H. Lammer   +4 more
doaj   +1 more source

On the character and distribution of lower-frequency radio emissions at Saturn and their relationship to substorm-like events [PDF]

, 2009
With the arrival of the Cassini spacecraft at Saturn in July 2004, there have been quasi-continuous observations of Saturn kilometric radiation (SKR) emissions.
L. Lamy, M. P. Freeman, S. W. H. Cowley, Lamy, L., Cecconi, Baptiste, B. Cecconi, W. S. Kurth, Jackman, C.M., Freeman, M. P., Kurth, W.S., Zarka, P., C. M. Jackman, M. K. Dougherty, Lamy, Laurent, Freeman, M.P., P. Zarka, Jackman, Caitriona M., Cowley, S.W.H., Cecconi, B., Kurth, William S., Dougherty, M.K., Cowley, S. W. H., Dougherty, Michele K., Freeman, Mervyn P., Zarka, Philippe   +24 more
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A New Component from the Quiet Sun from Radio to Gamma Rays: Synchrotron Radiation by Galactic Cosmic-Ray Electrons

The Astrophysical Journal, 2023
The quiet Sun, i.e., in its nonflaring state or nonflaring regions, emits thermal radiation from radio to ultraviolet. The quiet Sun also produces nonthermal radiation observed in gamma rays due to interactions of Galactic cosmic rays (GCRs) with the ...
Elena Orlando, Vahe’ Petrosian, Andrew Strong   +2 more
doaj   +1 more source

Characteristics of the Accelerated Electrons Moving along the Loop Derived from Cyclical Microwave Brightenings at the Footpoints

The Astrophysical Journal Letters, 2023
Many particles are accelerated during solar flares. To understand the acceleration and propagation processes of electrons, we require the pitch-angle distributions of the particles.
Keitarou Matsumoto, Satoshi Masuda, Takafumi Kaneko   +2 more
doaj   +1 more source

Complex Type II Solar Radio Event on 4 July 2022

, 2022
Publisher Copyright: © 2022 J. Kallunki et al., published by Sciendo.On 4 July 2022, a complex low-frequency solar radio burst was observed in Metsähovi Radio Observatory of Aalto University.
Kallunki, J.
core   +1 more source

Ichon Solar Radio Spectrogaphic System and Development of its Operation Software [PDF]

Journal of Astronomy and Space Sciences, 1997
A solar radio spectrograph for monitoring solar radio emission was installed at Ichon branch of Radio Research Laboratory in 1995. The spectrograph consists of three different antennas to sweep a wide band of frequencies in the range of 30MHz-2500MHz. We
K. S. Cho, G. H. Lee, K.-S. Kim
doaj  

Solar Radio Spikes and Type IIIb Striae Manifestations of Subsecond Electron Acceleration Triggered by a Coronal Mass Ejection

The Astrophysical Journal, 2023
Understanding electron acceleration associated with magnetic energy release at subsecond scales presents major challenges in solar physics. Solar radio spikes observed as subsecond, narrow-bandwidth bursts with Δ f / f ∼ 10 ^−3 –10 ^−2 are indicative of ...
Daniel L. Clarkson, Eduard P. Kontar, Nicole Vilmer, Mykola Gordovskyy, Xingyao Chen, Nicolina Chrysaphi   +5 more
doaj   +1 more source

Structure of the Solar Atmosphere: A Radio Perspective

Frontiers in Astronomy and Space Sciences, 2020
Solar radio emission has been providing information about the Sun for over half a century. In order to fully exploit this information, one needs to have a broader view of the solar atmosphere, which cannot be provided by radio observations alone.
Costas E. Alissandrakis
doaj   +1 more source