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Found 19 entries in the Bibliography.
Showing entries from 1 through 19
| 2023 |
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Interferometric imaging of the type IIIb and U radio bursts observed with LOFAR on 22 August 2017 Context. The Sun is the source of different types of radio bursts that are associated with solar flares, for example. Among the most frequently observed phenomena are type III solar bursts. Their radio images at low frequencies (below 100 MHz) are relatively poorly studied due to the limitations of legacy radio telescopes. \ Aims: We study the general characteristics of types IIIb and U with stria structure solar radio bursts in the frequency range of 20-80 MHz, in particular the source size and evolution in different altitu ... Dabrowski, Bartosz; Miku\la, Katarzyna; Flisek, Pawe\l; Vocks, Christian; Zhang, PeiJin; c, Jasmina; Warmuth, Alexander; Morosan, Diana; n, Adam; Fallows, Richard; Bisi, Mario; Krankowski, Andrzej; Mann, Gottfried; B\laszkiewicz, Leszek; Carley, Eoin; Gallagher, Peter; Zucca, Pietro; Rudawy, Pawe\l; Hajduk, Marcin; Kotulak, Kacper; Sidorowicz, Tomasz; Published by: \aap Published on: jan YEAR: 2023 DOI: 10.1051/0004-6361/202142905 Parker Data Used; Sun: radio radiation; Sun: UV radiation; Sun: activity; methods: observational; Astrophysics - Solar and Stellar Astrophysics |
| 2022 |
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Solar Cycle Variability in Coronal Holes and Their Effects on Solar Wind Sources Various upstream spacecraft have now observed the solar wind conditions affecting the Earth since the 1970s, covering over four solar activity cycles. These measurements provide a long term picture of the related patterns in large scale incident plasma and magnetic field parameters of interest for both interpreting cycles in geospace effects, and understanding how the Sun controls our space environment. This paper focuses on the latter, in part to provide context at the start of the new solar cycle 25, and toward establishin ... Luhmann, J.~G.; Li, Yan; Lee, C.~O.; Jian, L.~K.; Arge, C.~N.; Riley, P.; Published by: Space Weather Published on: oct YEAR: 2022 DOI: 10.1029/2022SW003110 |
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CMEs and SEPs During November-December 2020: A Challenge for Real-Time Space Weather Forecasting Predictions of coronal mass ejections (CMEs) and solar energetic particles (SEPs) are a central issue in space weather forecasting. In recent years, interest in space weather predictions has expanded to include impacts at other planets beyond Earth as well as spacecraft scattered throughout the heliosphere. In this sense, the scope of space weather science now encompasses the whole heliospheric system, and multipoint measurements of solar transients can provide useful insights and validations for prediction models. In this w ... Palmerio, Erika; Lee, Christina; Mays, Leila; Luhmann, Janet; Lario, David; anchez-Cano, Beatriz; Richardson, Ian; Vainio, Rami; Stevens, Michael; Cohen, Christina; Steinvall, Konrad; Möstl, Christian; Weiss, Andreas; Nieves-Chinchilla, Teresa; Li, Yan; Larson, Davin; Heyner, Daniel; Bale, Stuart; Galvin, Antoinette; Holmström, Mats; Khotyaintsev, Yuri; Maksimovic, Milan; Mitrofanov, Igor; Published by: Space Weather Published on: may YEAR: 2022 DOI: 10.1029/2021SW002993 Parker Data Used; coronal mass ejections; Solar energetic particles; space weather forecasts; MHD models; Inner heliosphere; Solar wind; Astrophysics - Solar and Stellar Astrophysics; Astrophysics - Earth and Planetary Astrophysics; Physics - Space Physics |
| 2021 |
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Solar energetic particle heavy ion properties in the widespread event of 2020 November 29 Context. Following a multi-year minimum of solar activity, a solar energetic particle event on 2020 Nov. 29 was observed by multiple spacecraft covering a wide range of solar longitudes including ACE, the Solar Terrestrial Relations Observatory-A, and the recently launched Parker Solar Probe and Solar Orbiter. \ Aims: Multi-point observations of a solar particle event, combined with remote-sensing imaging of flaring, shocks, and coronal mass ejections allows for a global picture of the event to be synthesized, and made avail ... Mason, G.~M.; Cohen, C.~M.~S.; Ho, G.~C.; Mitchell, D.~G.; Allen, R.~C.; Hill, M.~E.; Andrews, G.~B.; Berger, L.; Boden, S.; Böttcher, S.; Cernuda, I.; Christian, E.~R.; Cummings, A.~C.; Davis, A.~J.; Desai, M.~I.; De Nolfo, G.~A.; Eldrum, S.; Elftmann, R.; Kollhoff, A.; Giacalone, J.; omez-Herrero, R.; Hayes, J.; Janitzek, N.~P.; Joyce, C.~J.; Korth, A.; Kühl, P.; Kulkarni, S.~R.; Labrador, A.~W.; Lara, Espinosa; Lees, W.~J.; Leske, R.~A.; Mall, U.; Martin, C.; in, Mart\; Matthaeus, W.~H.; McComas, D.~J.; McNutt, R.~L.; Mewaldt, R.~A.; Mitchell, J.~G.; Pacheco, D.; Espada, Parra; Prieto, M.; Rankin, J.~S.; Ravanbakhsh, A.; iguez-Pacheco, Rodr\; Polo, Rodr\; Roelof, E.~C.; anchez-Prieto, S.; Schlemm, C.~E.; Schwadron, N.~A.; Seifert, H.; Stone, E.~C.; Szalay, J.~R.; Terasa, J.~C.; Tyagi, K.; von Forstner, J.~L.; Wiedenbeck, M.~E.; Wimmer-Schweingruber, R.~F.; Xu, Z.~G.; Yedla, M.; Published by: \aap Published on: dec YEAR: 2021 DOI: 10.1051/0004-6361/202141310 Parker Data Used; acceleration of particles; Sun: abundances; Sun: flares; Sun: particle emission |
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Dynamics of nanodust in the vicinity of a stellar corona: Effect of plasma corotation Context. In the vicinity of the Sun or other stars, the motion of the coronal and stellar wind plasma must include some amount of corotation, which could affect the dynamics of charged dust particles. In the case of the Sun, this region is now investigated in situ by the Parker Solar Probe. Charged dust particles coming from the vicinity of the Sun can also reach, and possibly be detected by, the Solar Orbiter. \ Aims: We use numerical simulations and theoretical models to study the effect of plasma corotation on the motion ... Published by: \aap Published on: aug YEAR: 2021 DOI: 10.1051/0004-6361/202141048 Sun: heliosphere; Solar wind; acceleration of particles; Parker Data Used; Interplanetary medium; circumstellar matter |
| 2020 |
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Dust observations from Parker Solar Probe: Dust ejection from the inner Solar System Context. The FIELDS instrument onboard Parker Solar Probe (PSP) observes dust impacts on the spacecraft. The derived dust flux rates suggest that the particles originate from the vicinities of the Sun and are ejected by radiation pressure. Radiation pressure typically ejects particles of several 100 nm and smaller, which are also affected by the electromagnetic force. \ Aims: We aim to understand the influence of the electromagnetic force on the dust trajectories and to predict the dust fluxes along the orbit of PSP, within ... Published by: Astronomy and Astrophysics Published on: jun YEAR: 2020 DOI: "10.1051/0004-6361/202039362" |
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An Optimization Principle for Computing Stationary MHD Equilibria with Solar Wind Flow Wiegelmann, Thomas; Neukirch, Thomas; Nickeler, Dieter; Chifu, Iulia; Published by: \solphys Published on: 10/2020 YEAR: 2020 DOI: 10.1007/s11207-020-01719-8 magnetic fields; Corona; models; Magnetohydrodynamics; Velocity fields; Solar wind; Astrophysics - Solar and Stellar Astrophysics |
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Dust sputtering within the inner heliosphere: a modelling study The aim of this study is to investigate through modelling how sputtering by impacting solar wind ions influences the lifetime of dust particles in the inner heliosphere near the Sun. We consider three typical dust materials, silicate, Fe0.4Mg0.6O, and carbon, and describe their sputtering yields based on atomic yields given by the Stopping and Range of Ions in Matter (SRIM) package. The influence of the solar wind is characterized by plasma density, solar wind speed, and solar wind composition, and we assume for these parame ... Baumann, Carsten; Myrvang, Margaretha; Mann, Ingrid; Published by: ANNALES GEOPHYSICAE Published on: 08/2020 YEAR: 2020 DOI: 10.5194/angeo-38-919-2020 |
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Dust sputtering within the inner heliosphere: a modelling study The aim of this study is to investigate through modelling how sputtering by impacting solar wind ions influences the lifetime of dust particles in the inner heliosphere near the Sun. We consider three typical dust materials, silicate, Fe0.4Mg0.6O, and carbon, and describe their sputtering yields based on atomic yields given by the Stopping and Range of Ions in Matter (SRIM) package. The influence of the solar wind is characterized by plasma density, solar wind speed, and solar wind composition, and we assume for these parame ... Baumann, Carsten; Myrvang, Margaretha; Mann, Ingrid; Published by: ANNALES GEOPHYSICAE Published on: 08/2020 YEAR: 2020 DOI: 10.5194/angeo-38-919-2020 |
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The distribution of spacecraft in the inner heliosphere during 2019 March enabled comprehensive observations of an interplanetary coronal mass ejection (ICME) that encountered Parker Solar Probe (PSP) at 0.547 au from the Sun. This ICME originated as a slow (\~311 km s-1) streamer blowout (SBO) on the Sun as measured by the white-light coronagraphs on board the Solar TErrestrial RElations Observatory-A and the Solar and Heliospheric Observatory. Despite its low initial speed, the passage of the ICME at PSP was ... Lario, D.; Balmaceda, L.; Alzate, N.; Mays, M.; Richardson, I.; Allen, R.; Florido-Llinas, M.; Nieves-Chinchilla, T.; Koval, A.; Lugaz, N.; Jian, L.; Arge, C.; Macneice, P.; Odstrcil, D.; Morgan, H.; Szabo, A.; Desai, M.; Whittlesey, P.; Stevens, M.; Ho, G.; Luhmann, J.; Published by: The Astrophysical Journal Published on: 07/2020 YEAR: 2020 DOI: 10.3847/1538-4357/ab9942 |
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ICME Evolution in the Inner Heliosphere ICMEs (interplanetary coronal mass ejections), the heliospheric counterparts of what is observed with coronagraphs at the Sun as CMEs, have been the subject of intense interest since their close association with geomagnetic storms was established in the 1980s. These major interplanetary plasma and magnetic field transients, often preceded and accompanied by solar energetic particles (SEPs), interact with planetary magnetospheres, ionospheres, and upper atmospheres in now fairly well-understood ways, although their details ... Luhmann, J.; Gopalswamy, N.; Jian, L.; Lugaz, N.; Published by: Solar Physics Published on: 04/2020 YEAR: 2020 DOI: 10.1007/s11207-020-01624-0 CME; ICME; parker solar probe; Solar Probe Plus; space weather |
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In this paper, we present an analysis of the internal structure of a coronal mass ejection (CME) detected by in situ instruments on board the Parker Solar Probe (PSP) spacecraft during its first solar encounter. On 2018 November 11 at 23:53 UT, the FIELDS magnetometer measured an increase in strength of the magnetic field as well as a coherent change in the field direction. The SWEAP instrument simultaneously detected a low proton temperature and signatures of bidirectionality in the electron pitch angle distribution (PAD ... Nieves-Chinchilla, Teresa; Szabo, Adam; Korreck, Kelly; Alzate, Nathalia; Balmaceda, Laura; Lavraud, Benoit; Paulson, Kristoff; Narock, Ayris; Wallace, Samantha; Jian, Lan; Luhmann, Janet; Morgan, Huw; Higginson, Aleida; Arge, Charles; Bale, Stuart; Case, Anthony; de Wit, Thierry; Giacalone, Joe; Goetz, Keith; Harvey, Peter; Jones-Melosky, Shaela; Kasper, J.; Larson, Davin; Livi, Roberto; McComas, David; MacDowall, Robert; Malaspina, David; Pulupa, Marc; Raouafi, Nour; Schwadron, Nathan; Stevens, Michael; Whittlesey, Phyllis; Published by: The Astrophysical Journal Supplement Series Published on: 02/2020 YEAR: 2020 DOI: 10.3847/1538-4365/ab61f5 |
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In the first orbit of the Parker Solar Probe (PSP), in situ thermal plasma and magnetic field measurements were collected as close as 35 RSun from the Sun, an environment that had not been previously explored. During the first orbit of PSP, the spacecraft flew through a streamer blowout coronal mass ejection (SBO-CME) on 2018 November 11 at 23:50 UT as it exited the science encounter. The SBO-CME on November 11 was directed away from the Earth and was not visible by L1 or Earth-based telescopes due to this geom ... Korreck, Kelly; Szabo, Adam; Chinchilla, Teresa; Lavraud, Benoit; Luhmann, Janet; Niembro, Tatiana; Higginson, Aleida; Alzate, Nathalia; Wallace, Samantha; Paulson, Kristoff; Rouillard, Alexis; Kouloumvakos, Athanasios; Poirier, Nicolas; Kasper, Justin; Case, A.; Stevens, Michael; Bale, Stuart; Pulupa, Marc; Whittlesey, Phyllis; Livi, Roberto; Goetz, Keith; Larson, Davin; Malaspina, David; Morgan, Huw; Narock, Ayris; Schwadron, Nathan; Bonnell, John; Harvey, Peter; Wygant, John; Published by: The Astrophysical Journal Supplement Series Published on: 02/2020 YEAR: 2020 DOI: 10.3847/1538-4365/ab6ff9 |
| 2019 |
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The electric and magnetic field instrument suite FIELDS on board the NASA Parker Solar Probe and the radio and plasma waves instrument RPW on the ESA Solar Orbiter mission that explore the inner heliosphere are sensitive to signals generated by dust impacts. Dust impacts have been observed using electric field antennas on spacecraft since the 1980s and the method was recently used with a number of space missions to derive dust fluxes. Here, we consider the details of dust impacts, subsequent development of the impact gene ... Mann, Ingrid; ak, Libor; Vaverka, Jakub; Antonsen, Tarjei; Fredriksen, \r; Issautier, Karine; Malaspina, David; Meyer-Vernet, Nicole; u, Ji\v; Sternovsky, Zoltan; Stude, Joan; Ye, Shengyi; Zaslavsky, Arnaud; Published by: Annales Geophysicae Published on: 12/2019 YEAR: 2019 DOI: 10.5194/angeo-37-1121-2019 |
| 2018 |
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Solar wind turbulence within high-speed streams is reviewed from the point of view of embedded single nonlinear Alfv\ en wave cycles, discontinuities, magnetic decreases (MDs), and shocks. For comparison and guidance, cometary plasma turbulence is also briefly reviewed. It is demonstrated that cometary nonlinear magnetosonic waves phase-steepen, with a right-hand circular polarized foreshortened front and an elongated, compressive trailing edge. The former part is a form of "wave breaking" and the latter that of "period d ... Tsurutani, Bruce; Lakhina, Gurbax; Sen, Abhijit; Hellinger, Petr; Glassmeier, Karl-Heinz; Mannucci, Anthony; Published by: Journal of Geophysical Research: Space Physics Published on: 01/2018 YEAR: 2018 DOI: 10.1002/jgra.v123.410.1002/2017JA024203 Alfv\ en waves; discontinuities; interplanetary turbulence; magnetic decreases; parker solar probe; period doubling; Solar Probe Plus; wave phase-steepening |
| 2016 |
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The Wide-Field Imager for Solar Probe Plus (WISPR) Vourlidas, Angelos; Howard, Russell; Plunkett, Simon; Korendyke, Clarence; Thernisien, Arnaud; Wang, Dennis; Rich, Nathan; Carter, Michael; Chua, Damien; Socker, Dennis; Linton, Mark; Morrill, Jeff; Lynch, Sean; Thurn, Adam; Van Duyne, Peter; Hagood, Robert; Clifford, Greg; Grey, Phares; Velli, Marco; Liewer, Paulett; Hall, Jeffrey; DeJong, Eric; Mikic, Zoran; Rochus, Pierre; Mazy, Emanuel; Bothmer, Volker; Rodmann, Jens; Published by: Space Science Reviews Published on: 02/2015 YEAR: 2016 DOI: 10.1007/s11214-014-0114-y Heliospheric imager; Imaging; Parker Data Used; Solar corona; Solar Probe Plus; Solar wind; Thomson scattering |
| 2015 |
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ION-SCALE TURBULENCE IN THE INNER HELIOSPHERE: RADIAL DEPENDENCE The evolution of the ion-scale plasma turbulence in the inner heliosphere is studied by associating the plasma parameters for hybrid-code turbulence simulations to the radial distance from the Sun via a Solar wind model based mapping procedure. Using a mapping based on a one-dimensional solar wind expansion model, the resulting ion-kinetic scale turbulence is related to the solar wind distance from the Sun. For this purpose the mapping is carried out for various values of ion beta that correspond to the heliocentric dista ... Comişel, H.; Motschmann, U.; üchner, J.; Narita, Y.; Nariyuki, Y.; Published by: The Astrophysical Journal Published on: 10/2015 YEAR: 2015 DOI: 10.1088/0004-637X/812/2/175 parker solar probe; plasmas; Solar Probe Plus; Solar wind; turbulence; waves |
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Statistical study of magnetic cloud erosion by magnetic reconnection recent studies suggest that magnetic reconnection is able to erode substantial amounts of the outer magnetic flux of interplanetary magnetic clouds (MCs) as they propagate in the heliosphere. We quantify and provide a broader context to this process, starting from 263 tabulated interplanetary coronal mass ejections, including MCs, observed over a time period covering 17 years and at a distance of 1 AU from the Sun with Wind (1995-2008) and the two STEREO (2009-2012) spacecraft. Based on several quality factors, including ... Ruffenach, A.; Lavraud, B.; Farrugia, C.; emoulin, P.; Dasso, S.; Owens, M.; Sauvaud, J.-A.; Rouillard, A.; Lynnyk, A.; Foullon, C.; Savani, N.; Luhmann, J.; Galvin, A.; Published by: Journal of Geophysical Research: Space Physics Published on: 01/2015 YEAR: 2015 DOI: 10.1002/2014JA020628 coronal mass ejection; magnetic cloud; magnetic flux rope; magnetic reconnection; parker solar probe; Solar Probe Plus; Solar wind |
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As part of a larger effort led by the Keck Institute for Space Studies at the California Institute of Technology, the Advanced Concepts Office at NASA’s George C. Marshall Space Flight Center conducted a study to assess what low-thrust advanced propulsion system candidates, existing and near term, could deliver a small, Voyager-like satellite to our solar system’s heliopause, approximately 100 AU from the center of the sun, within 10 years and within a 2025 to 2035 launch window. The advanced propulsion system tr ... Hopkins, Randall; Thomas, Herbert; Wiegmann, Bruce; Heaton, Andrew; Johnson, Les; Baysinger, Michael; Beers, Benjamin; Published by: AIAA SPACE 2015 Conference and Exposition Published on: Antennas; Earth (planet); Hall effect devices; Hall thrusters; Heat shielding; Interplanetary flight; NASA; Small satellites; Solar equipment; Solar radiation; Sun; Tetherlines; Trajectories; Parker Engineering |
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