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Found 9 entries in the Bibliography.
Showing entries from 1 through 9
2023 |
Deriving Large Coronal Magnetic Loop Parameters Using LOFAR J Burst Observations Large coronal loops around one solar radius in altitude are an important connection between the solar wind and the low solar corona. However, their plasma properties are ill-defined, as standard X-ray and UV techniques are not suited to these low-density environments. Diagnostics from type J solar radio bursts at frequencies above 10 MHz are ideally suited to understand these coronal loops. Despite this, J-bursts are less frequently studied than their type III cousins, in part because the curvature of the coronal loop makes ... Zhang, Jinge; Reid, Hamish; Krupar, Vratislav; Zucca, Pietro; Dabrowski, Bartosz; Krankowski, Andrzej; Published by: \solphys Published on: jan YEAR: 2023   DOI: 10.1007/s11207-022-02096-0 Parker Data Used; Energetic particles; Electrons; magnetic fields; Corona; Radio emission; Radio bursts; Astrophysics - Solar and Stellar Astrophysics |
Context. During the first close perihelion pass of Solar Orbiter, a series of impulsive $^3$He-rich solar particle events was observed on 18-19 March 2022 from a distance of 0.36 au. In addition to the energetic particle, radio, and X-ray data from Solar Orbiter, the events were observed in radio and/or extreme ultraviolet by STEREO-A, SDO, Wind, and Parker Solar Probe. \ Aims: Observations of the event series along with remote sensing of flaring and radio emission with only small timing delays due to the close distance allo ... Mason, G.~M.; Nitta, N.~V.; ik, Bu\vc\; omez-Herrero, R.; Krupar, V.; Krucker, S.; Ho, G.~C.; Allen, R.~C.; Kouloumvakos, A.; Wimmer-Schweingruber, R.~F.; Rodriguez-Pacheco, J.; Vecchio, A.; Maksimovic, M.; Published by: \aap Published on: jan YEAR: 2023   DOI: 10.1051/0004-6361/202245576 Parker Data Used; acceleration of particles; Sun: flares; Sun: particle emission; Sun: radio radiation; Sun: UV radiation; Sun: X-rays; gamma rays |
2022 |
We investigate the effects of the evolutionary processes in the internal magnetic structure of two interplanetary coronal mass ejections (ICMEs) detected in situ between 2020 November 29 and December 1 by the Parker Solar Probe (PSP). The sources of the ICMEs were observed remotely at the Sun in EUV and subsequently tracked to their coronal counterparts in white light. This period is of particular interest to the community as it has been identified as the first widespread solar energetic particle event of solar cycle 25. The ... Nieves-Chinchilla, Teresa; Alzate, Nathalia; Cremades, Hebe; ia, Laura; Santos, Luiz; Narock, Ayris; Xie, Hong; Szabo, Adam; Palmerio, Erika; Krupar, Vratislav; Pulupa, Marc; Lario, David; Stevens, Michael; Wilson, Lynn; Kwon, Ryun-Young; Mays, Leila; St. Cyr, Chris; Hess, Phillip; Reeves, Katharine; Seaton, Daniel; Niembro, Tatiana; Bale, Stuart; Kasper, Justin; Published by: \apj Published on: may YEAR: 2022   DOI: 10.3847/1538-4357/ac590b Parker Data Used; Solar coronal mass ejections; Solar wind; Interplanetary physics; 310; 1534; 827; Astrophysics - Solar and Stellar Astrophysics |
2021 |
\ Aims: We use multi-spacecraft observations of individual type III radio bursts to calculate the directivity of the radio emission. We compare these data to the results of ray-tracing simulations of the radio-wave propagation and probe the plasma properties of the inner heliosphere. \ Methods: We used ray-tracing simulations of radio-wave propagation with anisotropic scattering on density inhomogeneities to study the directivity of radio emissions. Simultaneous observations of type III radio bursts by four widely separated ... Musset, S.; Maksimovic, M.; Kontar, E.; Krupar, V.; Chrysaphi, N.; Bonnin, X.; Vecchio, A.; Cecconi, B.; Zaslavsky, A.; Issautier, K.; Bale, S.~D.; Pulupa, M.; Published by: \aap Published on: dec YEAR: 2021   DOI: 10.1051/0004-6361/202140998 Parker Data Used; Sun: radio radiation; scattering; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics |
The first widespread solar energetic particle event observed by Solar Orbiter on 2020 November 29 Context. On 2020 November 29, the first widespread solar energetic particle (SEP) event of solar cycle 25 was observed at four widely separated locations in the inner (\ensuremath\lesssim1 AU) heliosphere. Relativistic electrons as well as protons with energies > 50 MeV were observed by Solar Orbiter (SolO), Parker Solar Probe, the Solar Terrestrial Relations Observatory (STEREO)-A and multiple near- Earth spacecraft. The SEP event was associated with an M4.4 class X-ray flare and accompanied by a coronal mass ejection and a ... Kollhoff, A.; Kouloumvakos, A.; Lario, D.; Dresing, N.; omez-Herrero, R.; ia, Rodr\; Malandraki, O.~E.; Richardson, I.~G.; Posner, A.; Klein, K.; Pacheco, D.; Klassen, A.; Heber, B.; Cohen, C.~M.~S.; Laitinen, T.; Cernuda, I.; Dalla, S.; Lara, Espinosa; Vainio, R.; Köberle, M.; Kühl, R.; Xu, Z.~G.; Berger, L.; Eldrum, S.; Brüdern, M.; Laurenza, M.; Kilpua, E.~J.; Aran, A.; Rouillard, A.~P.; ik, Bu\vc\; Wijsen, N.; Pomoell, J.; Wimmer-Schweingruber, R.~F.; Martin, C.; Böttcher, S.~I.; von Forstner, J.~L.; Terasa, J.; Boden, S.; Kulkarni, S.~R.; Ravanbakhsh, A.; Yedla, M.; Janitzek, N.; iguez-Pacheco, Rodr\; Mateo, Prieto; Prieto, S.; Espada, Parra; Polo, Rodr\; in, Mart\; Carcaboso, F.; Mason, G.~M.; Ho, G.~C.; Allen, R.~C.; Andrews, Bruce; Schlemm, C.~E.; Seifert, H.; Tyagi, K.; Lees, W.~J.; Hayes, J.; Bale, S.~D.; Krupar, V.; Horbury, T.~S.; Angelini, V.; Evans, V.; Brien, H.; Maksimovic, M.; Khotyaintsev, Yu.; Vecchio, A.; Steinvall, K.; Asvestari, E.; Published by: \aap Published on: dec YEAR: 2021   DOI: 10.1051/0004-6361/202140937 Parker Data Used; Sun: particle emission; Sun: heliosphere; Sun: coronal mass ejections (CMEs); Sun: flares; Interplanetary medium |
2020 |
Density Fluctuations in the Solar Wind Based on Type III Radio Bursts Observed by Parker Solar Probe Radio waves are strongly scattered in the solar wind, so that their apparent sources seem to be considerably larger and shifted than the actual ones. Since the scattering depends on the spectrum of density turbulence, a better understanding of the radio wave propagation provides indirect information on the relative density fluctuations, ϵ=⟨δn⟩/⟨n⟩\ ϵ=⟨δn⟩/⟨n⟩ , at the effective turbulence scale length. Here, we analyzed 30 type III bursts detected by Parker Sola ... Krupar, Vratislav; Szabo, Adam; Maksimovic, Milan; Kruparova, Oksana; Kontar, Eduard; Balmaceda, Laura; Bonnin, Xavier; Bale, Stuart; Pulupa, Marc; Malaspina, David; Bonnell, John; Harvey, Peter; Goetz, Keith; de Wit, Thierry; MacDowall, Robert; Kasper, Justin; Case, Anthony; Korreck, Kelly; Larson, Davin; Livi, Roberto; Stevens, Michael; Whittlesey, Phyllis; Hegedus, Alexander; Published by: The Astrophysical Journal Supplement Series Published on: 02/2020 YEAR: 2020   DOI: 10.3847/1538-4365/ab65bd Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; Solar Probe Plus |
Density Fluctuations in the Solar Wind Based on Type III Radio Bursts Observed by Parker Solar Probe Radio waves are strongly scattered in the solar wind, so that their apparent sources seem to be considerably larger and shifted than the actual ones. Since the scattering depends on the spectrum of density turbulence, a better understanding of the radio wave propagation provides indirect information on the relative density fluctuations, ϵ=⟨δn⟩/⟨n⟩\ ϵ=⟨δn⟩/⟨n⟩ , at the effective turbulence scale length. Here, we analyzed 30 type III bursts detected by Parker Sola ... Krupar, Vratislav; Szabo, Adam; Maksimovic, Milan; Kruparova, Oksana; Kontar, Eduard; Balmaceda, Laura; Bonnin, Xavier; Bale, Stuart; Pulupa, Marc; Malaspina, David; Bonnell, John; Harvey, Peter; Goetz, Keith; de Wit, Thierry; MacDowall, Robert; Kasper, Justin; Case, Anthony; Korreck, Kelly; Larson, Davin; Livi, Roberto; Stevens, Michael; Whittlesey, Phyllis; Hegedus, Alexander; Published by: The Astrophysical Journal Supplement Series Published on: 02/2020 YEAR: 2020   DOI: 10.3847/1538-4365/ab65bd Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; Solar Probe Plus |
2016 |
An Analysis of Interplanetary Solar Radio Emissions Associated with a Coronal Mass Ejection Krupar, V.; Eastwood, J.~P.; Kruparova, O.; Santolik, O.; Soucek, J.; c, Magdaleni\; Vourlidas, A.; Maksimovic, M.; Bonnin, X.; Bothmer, V.; Mrotzek, N.; Pluta, A.; Barnes, D.; Davies, J.~A.; Oliveros, J.~C.; Bale, S.~D.; Published by: \apjl Published on: 06/2016 YEAR: 2016   DOI: 10.3847/2041-8205/823/1/L5 Parker Data Used; solar─terrestrial relations; Sun: coronal mass ejections: CMEs; Sun: radio radiation; Astrophysics - Solar and Stellar Astrophysics |
An Analysis of Interplanetary Solar Radio Emissions Associated with a Coronal Mass Ejection Krupar, V.; Eastwood, J.~P.; Kruparova, O.; Santolik, O.; Soucek, J.; c, Magdaleni\; Vourlidas, A.; Maksimovic, M.; Bonnin, X.; Bothmer, V.; Mrotzek, N.; Pluta, A.; Barnes, D.; Davies, J.~A.; Oliveros, J.~C.; Bale, S.~D.; Published by: \apjl Published on: 06/2016 YEAR: 2016   DOI: 10.3847/2041-8205/823/1/L5 Parker Data Used; solar─terrestrial relations; Sun: coronal mass ejections: CMEs; Sun: radio radiation; Astrophysics - Solar and Stellar Astrophysics |
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