Results 41 to 50 of about 429,319 (205)
Comparison of transient horizontal magnetic fields in a plage region and in the quiet Sun
, 2008 Properties of transient horizontal magnetic fields (THMFs) in both plage and quiet Sun regions are obtained and compared. Spectro-polarimetric observations with the Solar Optical Telescope (SOT) on the Hinode satellite were carried out with a cadence of ...
Abbett +25 more
core +1 more source
Eruptions from quiet Sun coronal bright points [PDF]
Astronomy & Astrophysics, 2018 Context. Eruptions from coronal bright points (CBPs) are investigated in a two-part study. Aims. The present study aims to explore in full detail the morphological and dynamical evolution of these eruptions in the context of the full lifetime evolution of CBPs.
Mou, Chauzhou +3 more
openaire +4 more sources
Incoherent Solar Radio Emission
Frontiers in Astronomy and Space Sciences, 2020 Incoherent solar radio radiation comes from the free-free, gyroresonance, and gyrosynchrotron emission mechanisms. Free-free is primarily produced from Coulomb collisions between thermal electrons and ions.
Alexander Nindos
doaj +1 more source
The Astrophysical Journal LettersWe present an interpretation of the recent Daniel K. Inouye Solar Telescope (DKIST) observations of propagating wave fronts in the lower solar atmosphere.
Shah Mohammad Bahauddin +7 more
doaj +1 more source
Observations of coronal holes with the Siberian Radioheliograph
Solar-Terrestrial PhysicsMulti-wavelength observations of a coronal hole (CH) with two-dimensional spatial resolution have been made for the first time in the frequency range from 2.8 to 12 GHz.
Globa M. V. +2 more
doaj +1 more source
Numerical simulations of quiet Sun magnetic fields seeded by Biermann battery
, 2017 The magnetic fields of the quiet Sun cover at any time more than 90\% of its surface and their magnetic energy budget is crucial to explain the thermal structure of the solar atmosphere. One of the possible origins of these fields is due to the action of
Collados, M. +3 more
core +1 more source
The Astrophysical JournalOur study of H α line profiles of rapid blue- and redshifted excursions measured with Goode Solar Telescope revealed an asymmetrical three-peak structure present in the blue wing of the H α line, suggesting complex internal velocity fields that may ...
Vasyl Yurchyshyn +6 more
doaj +1 more source
Modulation of Cosmic-Ray Antiprotons in the Heliosphere: Simulations for a Solar Cycle
The Astrophysical Journal, 2023 The precision measurements of galactic cosmic-ray protons from the Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics and the Alpha Magnetic Spectrometer are reproduced using a well-established three-dimensional numerical model for ...
O. P. M. Aslam +3 more
doaj +1 more source
Inferring depth-dependent plasma motions from surface observations using the DeepVel neural network
Journal of Space Weather and Space Climate, 2021 Coverage of plasma motions is limited to the line-of-sight component at the Sun’s surface. Multiple tracking and inversion methods were developed to infer the transverse motions from observational data.
Tremblay Benoit +4 more
doaj +1 more source
Magnetic Topology and Loop Statistics in Observed Coronal Holes Using Potential Field Modeling
The Astrophysical JournalPotential field source surface (PFSS) models are widely used to study the solar corona and form the basis for solar wind forecasting, yet they often fail to reproduce observed properties of coronal holes.
Stephan G. Heinemann +2 more
doaj +1 more source