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87 results on '"Case, Anthony W."'

51. Characteristic Scales of Magnetic Switchback Patches Near the Sun and Their Possible Association With Solar Supergranulation and Granulation

Author

Fargette, Naïs, primary, Lavraud, Benoit, additional, Rouillard, Alexis P., additional, Réville, Victor, additional, Dudok De Wit, Thierry, additional, Froment, Clara, additional, Halekas, Jasper S., additional, Phan, Tai D., additional, Malaspina, David M., additional, Bale, Stuart D., additional, Kasper, Justin C., additional, Louarn, Philippe, additional, Case, Anthony W., additional, Korreck, Kelly E., additional, Larson, Davin E., additional, Pulupa, Marc, additional, Stevens, Michael L., additional, Whittlesey, Phyllis L., additional, and Berthomier, Matthieu, additional

Published
2021
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52. Why switchbacks may be related to solar granulation

Author

Fargette, Naïs, Lavraud, Benoit, Rouillard, Alexis, Réville, Victor, Phan, Tai, Bale, Stuart D., Dudok de Wit, Thierry, Froment, Clara, Kasper, Justin, Halekas, Jasper S., Louarn, Philippe, Case, Anthony W., Korreck, Kelly E., Larson, Davin E., Malaspina, David, Pulupa, Marc, Stevens, Michael L., Whittlesey, Phyllis L., Berthomier, Matthieu, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Laboratoire de Physique des Plasmas (LPP), Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École polytechnique (X)-Sorbonne Université (SU)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU]Sciences of the Universe [physics], Physics::Space Physics, Astrophysics::Solar and Stellar Astrophysics
Abstract

International audience; Parker Solar Probe data below 0.3 AU have revealed a near-Sun magnetic field dominated by Alfvénic structures that display back and forth reversals of the radial magnetic field. They are called magnetic switchbacks, they display no electron strahl variation consistent with magnetic field foldings within the same magnetic sector, and are associated with velocity spikes during an otherwise calmer background. They are thought to originate either at the photosphere through magnetic reconnection processes, or higher up in the corona and solar wind through turbulent processes.In this work, we analyze the spatial and temporal characteristic scales of these magnetic switchbacks. We define switchbacks as a deviation from the parker spiral direction and detect them automatically through perihelia encounters 1 to 6. We analyze the solid angle between the magnetic field and the parker spiral both over time and space. We perform a fast Fourier transformation to the obtained angle and find a periodical spatial variation with scales consistent with solar granulation. This suggests that switchbacks form near the photosphere and may be caused, or at least modulated, by solar convection.

Published
2021
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53. Evolution of Solar Wind Turbulence from 0.1 to 1 au during the First Parker Solar Probe-Solar Orbiter Radial Alignment

Author

Telloni, Daniele, Sorriso-Valvo, Luca, Woodham, Lloyd D., Panasenco, Olga, Velli, Marco, Carbone, Francesco, Zank, Gary P., Bruno, Roberto, Perrone, Denise, Nakanotani, Masaru, Shi, Chen, D'Amicis, Raffaella, De Marco, Rossana, Jagarlamudi, Vamsee K., Steinvall, Konrad, Marino, Raffaele, Adhikari, Laxman, Zhao, Lingling, Liang, Haoming, Tenerani, Anna, Laker, Ronan, Horbury, Timothy S., Bale, Stuart D., Pulupa, Marc, Malaspina, David M., MacDowall, Robert J., Goetz, Keith, de Wit, Thierry Dudok, Harvey, Peter R., Kasper, Justin C., Korreck, Kelly E., Larson, Davin, Case, Anthony W., Stevens, Michael L., Whittlesey, Phyllis, Livi, Roberto, Owen, Christopher J., Livi, Stefano, Louarn, Philippe, Antonucci, Ester, Romoli, Marco, O'Brien, Helen, Evans, Vincent, Angelini, Virginia, Telloni, Daniele, Sorriso-Valvo, Luca, Woodham, Lloyd D., Panasenco, Olga, Velli, Marco, Carbone, Francesco, Zank, Gary P., Bruno, Roberto, Perrone, Denise, Nakanotani, Masaru, Shi, Chen, D'Amicis, Raffaella, De Marco, Rossana, Jagarlamudi, Vamsee K., Steinvall, Konrad, Marino, Raffaele, Adhikari, Laxman, Zhao, Lingling, Liang, Haoming, Tenerani, Anna, Laker, Ronan, Horbury, Timothy S., Bale, Stuart D., Pulupa, Marc, Malaspina, David M., MacDowall, Robert J., Goetz, Keith, de Wit, Thierry Dudok, Harvey, Peter R., Kasper, Justin C., Korreck, Kelly E., Larson, Davin, Case, Anthony W., Stevens, Michael L., Whittlesey, Phyllis, Livi, Roberto, Owen, Christopher J., Livi, Stefano, Louarn, Philippe, Antonucci, Ester, Romoli, Marco, O'Brien, Helen, Evans, Vincent, and Angelini, Virginia

Abstract

The first radial alignment between Parker Solar Probe and Solar Orbiter spacecraft is used to investigate the evolution of solar wind turbulence in the inner heliosphere. Assuming ballistic propagation, two 1.5 hr intervals are tentatively identified as providing measurements of the same plasma parcels traveling from 0.1 to 1 au. Using magnetic field measurements from both spacecraft, the properties of turbulence in the two intervals are assessed. Magnetic spectral density, flatness, and high-order moment scaling laws are calculated. The Hilbert-Huang transform is additionally used to mitigate short sample and poor stationarity effects. Results show that the plasma evolves from a highly Alfvenic, less-developed turbulence state near the Sun, to fully developed and intermittent turbulence at 1 au. These observations provide strong evidence for the radial evolution of solar wind turbulence.

Published
2021
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54. Evolution of Solar Wind Turbulence from 0.1 to 1 au during the First Parker Solar Probe–Solar Orbiter Radial Alignment

Author

Telloni, Daniele, primary, Sorriso-Valvo, Luca, additional, Woodham, Lloyd D., additional, Panasenco, Olga, additional, Velli, Marco, additional, Carbone, Francesco, additional, Zank, Gary P., additional, Bruno, Roberto, additional, Perrone, Denise, additional, Nakanotani, Masaru, additional, Shi, Chen, additional, D’Amicis, Raffaella, additional, De Marco, Rossana, additional, Jagarlamudi, Vamsee K., additional, Steinvall, Konrad, additional, Marino, Raffaele, additional, Adhikari, Laxman, additional, Zhao, Lingling, additional, Liang, Haoming, additional, Tenerani, Anna, additional, Laker, Ronan, additional, Horbury, Timothy S., additional, Bale, Stuart D., additional, Pulupa, Marc, additional, Malaspina, David M., additional, MacDowall, Robert J., additional, Goetz, Keith, additional, de Wit, Thierry Dudok, additional, Harvey, Peter R., additional, Kasper, Justin C., additional, Korreck, Kelly E., additional, Larson, Davin, additional, Case, Anthony W., additional, Stevens, Michael L., additional, Whittlesey, Phyllis, additional, Livi, Roberto, additional, Owen, Christopher J., additional, Livi, Stefano, additional, Louarn, Philippe, additional, Antonucci, Ester, additional, Romoli, Marco, additional, O’Brien, Helen, additional, Evans, Vincent, additional, and Angelini, Virginia, additional

Published
2021
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55. Multiscale Solar Wind Turbulence Properties inside and near Switchbacks Measured by the Parker Solar Probe

Author

Martinović, Mihailo M., primary, Klein, Kristopher G., additional, Huang, Jia, additional, Chandran, Benjamin D. G., additional, Kasper, Justin C., additional, Lichko, Emily, additional, Bowen, Trevor, additional, Chen, Christopher H. K., additional, Matteini, Lorenzo, additional, Stevens, Michael, additional, Case, Anthony W., additional, and Bale, Stuart D., additional

Published
2021
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56. Testing the Solar Probe Cup, an Instrument Designed to Touch the Sun

Author

Whittlesey, Phyllis L, Case, Anthony W, Kasper, Justin Christophe, Wright, Kenneth H., Jr, Alterman, Ben, Cirtain, Jonathan W, Bookbinder, Jay, Korreck, Kelly E, and Stevens, Michael Louis

Subjects
Solar Physics, Instrumentation And Photography
Abstract

Solar Probe Plus will be the first, fastest, and closest mission to the sun, providing the first direct sampling of the sub-Alfvenic corona. The Solar Probe Cup (SPC) is a unique re-imagining of the traditional Faraday Cup design and materials for immersion in this high temperature environment. Sending an instrument of this type into a never-seen particle environment requires extensive characterization prior to launch to establish sufficient measurement accuracy and instrument response. To reach this end, a slew of tests for allowing SPC to see ranges of appropriate ions and electrons, as well as a facility that reproduces solar photon spectra and fluxes for this mission. Having already tested the SPC at flight like temperatures with no significant modification of the noise floor, we recently completed a round of particle testing to see if the deviations in Faraday Cup design fundamentally change the operation of the instrument. Results and implications from these tests will be presented, as well as performance comparisons to cousin instruments such as those on the WIND spacecraft.

Published
2014

57. Why switchbacks may be related to solar granulation 

Author

Fargette, Naïs, primary, Lavraud, Benoit, additional, Rouillard, Alexis, additional, Réville, Victor, additional, Phan, Tai, additional, Bale, Stuart D., additional, Dudok De Wit, Thierry, additional, Froment, Clara, additional, Kasper, Justin, additional, Halekas, Jasper S., additional, Louarn, Philippe, additional, Case, Anthony W., additional, Korreck, Kelly E., additional, Larson, Davin E., additional, Malaspina, David, additional, Pulupa, Marc, additional, Stevens, Michael L., additional, Whittlesey, Phyllis L., additional, and Berthomier, Matthieu, additional

Published
2021
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58. Electrostatic Waves with Rapid Frequency Shifts in the Solar Wind from PSP observations

Author

Kromyda, Lily, primary, Malaspina, David M., additional, Ergun, Robert E., additional, Halekas, Jasper, additional, Stevens, Michael L., additional, Verniero, Jennifer, additional, Chasapis, Alexandros, additional, Vech, Daniel, additional, Bale, Stuart D., additional, Bonnell, John W., additional, de Wit, Thierry Dudok, additional, Goetz, Keith, additional, Goodrich, Katherine, additional, Harvey, Peter R., additional, MacDowall, Robert J., additional, Pulupa, Marc, additional, Case, Anthony W., additional, Kasper, Justin C., additional, Korreck, Kelly E., additional, Larson, Davin, additional, Livi, Roberto, additional, and Whittlesey, Phyllis, additional

Published
2021
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59. Small-scale Magnetic Flux Ropes in the First Two Parker Solar Probe Encounters

Author

Chen, Yu, primary, Hu, Qiang, additional, Zhao, Lingling, additional, Kasper, Justin C., additional, Bale, Stuart D., additional, Korreck, Kelly E., additional, Case, Anthony W., additional, Stevens, Michael L., additional, Bonnell, John W., additional, Goetz, Keith, additional, Harvey, Peter R., additional, Klein, Kristopher G., additional, Larson, Davin E., additional, Livi, Roberto, additional, MacDowall, Robert J., additional, Malaspina, David M., additional, Pulupa, Marc, additional, and Whittlesey, Phyllis L., additional

Published
2020
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60. Proton core behaviour inside magnetic field switchbacks

Author

Woolley, Thomas, primary, Matteini, Lorenzo, additional, Horbury, Timothy S, additional, Bale, Stuart D, additional, Woodham, Lloyd D, additional, Laker, Ronan, additional, Alterman, Benjamin L, additional, Bonnell, John W, additional, Case, Anthony W, additional, Kasper, Justin C, additional, Klein, Kristopher G, additional, Martinović, Mihailo M, additional, and Stevens, Michael, additional

Published
2020
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61. Constraining Ion-Scale Heating and Spectral Energy Transfer in Observations of Plasma Turbulence

Author

Bowen, Trevor A., primary, Mallet, Alfred, additional, Bale, Stuart D., additional, Bonnell, J. W., additional, Case, Anthony W., additional, Chandran, Benjamin D. G., additional, Chasapis, Alexandros, additional, Chen, Christopher H. K., additional, Duan, Die, additional, Dudok de Wit, Thierry, additional, Goetz, Keith, additional, Halekas, Jasper S., additional, Harvey, Peter R., additional, Kasper, J. C., additional, Korreck, Kelly E., additional, Larson, Davin, additional, Livi, Roberto, additional, MacDowall, Robert J., additional, Malaspina, David M., additional, McManus, Michael D., additional, Pulupa, Marc, additional, Stevens, Michael, additional, and Whittlesey, Phyllis, additional

Published
2020
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62. Coronal Electron Temperature Inferred from the Strahl Electrons in the Inner Heliosphere: Parker Solar Probe and Helios Observations

Author

Berčič, Laura, primary, Larson, Davin, additional, Whittlesey, Phyllis, additional, Maksimović, Milan, additional, Badman, Samuel T., additional, Landi, Simone, additional, Matteini, Lorenzo, additional, Bale, Stuart. D., additional, Bonnell, John W., additional, Case, Anthony W., additional, Dudok de Wit, Thierry, additional, Goetz, Keith, additional, Harvey, Peter R., additional, Kasper, Justin C., additional, Korreck, Kelly E., additional, Livi, Roberto, additional, MacDowall, Robert J., additional, Malaspina, David M., additional, Pulupa, Marc, additional, and Stevens, Michael L., additional

Published
2020
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63. Cross Helicity Reversals in Magnetic Switchbacks

Author

McManus, Michael D., primary, Bowen, Trevor A., additional, Mallet, Alfred, additional, Chen, Christopher H. K., additional, Chandran, Benjamin D. G., additional, Bale, Stuart D., additional, Larson, Davin E., additional, Dudok de Wit, Thierry, additional, Kasper, J. C., additional, Stevens, Michael, additional, Whittlesey, Phyllis, additional, Livi, Roberto, additional, Korreck, Kelly E., additional, Goetz, Keith, additional, Harvey, Peter R., additional, Pulupa, Marc, additional, MacDowall, Robert J., additional, Malaspina, David M., additional, Case, Anthony W., additional, and Bonnell, J. W., additional

Published
2020
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64. The Enhancement of Proton Stochastic Heating in the Near-Sun Solar Wind

Author

Martinović, Mihailo M., primary, Klein, Kristopher G., additional, Kasper, Justin C., additional, Case, Anthony W., additional, Korreck, Kelly E., additional, Larson, Davin, additional, Livi, Roberto, additional, Stevens, Michael, additional, Whittlesey, Phyllis, additional, Chandran, Benjamin D. G., additional, Alterman, Ben L., additional, Huang, Jia, additional, Chen, Christopher H. K., additional, Bale, Stuart D., additional, Pulupa, Marc, additional, Malaspina, David M., additional, Bonnell, John W., additional, Harvey, Peter R., additional, Goetz, Keith, additional, Dudok de Wit, Thierry, additional, and MacDowall, Robert J., additional

Published
2020
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65. Analysis of the Internal Structure of the Streamer Blowout Observed by the Parker Solar Probe During the First Solar Encounter

Author

Nieves-Chinchilla, Teresa, primary, Szabo, Adam, additional, Korreck, Kelly E., additional, Alzate, Nathalia, additional, Balmaceda, Laura A., additional, Lavraud, Benoit, additional, Paulson, Kristoff, additional, Narock, Ayris A., additional, Wallace, Samantha, additional, Jian, Lan K., additional, Luhmann, Janet G., additional, Morgan, Huw, additional, Higginson, Aleida, additional, Arge, Charles N., additional, Bale, Stuart D., additional, Case, Anthony W., additional, Wit, Thierry Dudok de, additional, Giacalone, Joe, additional, Goetz, Keith, additional, Harvey, Peter R., additional, Jones-Melosky, Shaela I., additional, Kasper, J. C., additional, Larson, Davin E., additional, Livi, Roberto, additional, McComas, David J., additional, MacDowall, Robert J., additional, Malaspina, David M., additional, Pulupa, Marc, additional, Raouafi, Nour E., additional, Schwadron, Nathan, additional, Stevens, Michael Louis, additional, and Whittlesey, Phyllis L., additional

Published
2020
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66. Exploring Solar Wind Origins and Connecting Plasma Flows from the Parker Solar Probe to 1 au: Nonspherical Source Surface and Alfvénic Fluctuations

Author

Panasenco, Olga, primary, Velli, Marco, additional, D’Amicis, Raffaella, additional, Shi, Chen, additional, Réville, Victor, additional, Bale, Stuart D., additional, Badman, Samuel T., additional, Kasper, Justin, additional, Korreck, Kelly, additional, Bonnell, J. W., additional, Wit, Thierry Dudok de, additional, Goetz, Keith, additional, Harvey, Peter R., additional, MacDowall, Robert J., additional, Malaspina, David M., additional, Pulupa, Marc, additional, Case, Anthony W., additional, Larson, Davin, additional, Livi, Roberto, additional, Stevens, Michael, additional, and Whittlesey, Phyllis, additional

Published
2020
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67. The Radial Dependence of Proton-scale Magnetic Spectral Break in Slow Solar Wind during PSP Encounter 2

Author

Duan, Die, primary, Bowen, Trevor A., additional, Chen, Christopher H. K., additional, Mallet, Alfred, additional, He, Jiansen, additional, Bale, Stuart D., additional, Vech, Daniel, additional, Kasper, J. C., additional, Pulupa, Marc, additional, Bonnell, John W., additional, Case, Anthony W., additional, de Wit, Thierry Dudok, additional, Goetz, Keith, additional, Harvey, Peter R., additional, Korreck, Kelly E., additional, Larson, Davin, additional, Livi, Roberto, additional, MacDowall, Robert J., additional, Malaspina, David M., additional, Stevens, Michael, additional, and Whittlesey, Phyllis, additional

Published
2020
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68. Plasma Waves near the Electron Cyclotron Frequency in the Near-Sun Solar Wind

Author

Malaspina, David M., primary, Halekas, Jasper, additional, Berčič, Laura, additional, Larson, Davin, additional, Whittlesey, Phyllis, additional, Bale, Stuart D., additional, Bonnell, John W., additional, Dudok de Wit, Thierry, additional, Ergun, Robert E., additional, Howes, Gregory, additional, Goetz, Keith, additional, Goodrich, Katherine, additional, Harvey, Peter R., additional, MacDowall, Robert J., additional, Pulupa, Marc, additional, Case, Anthony W., additional, Kasper, Justin C., additional, Korreck, Kelly E., additional, Livi, Roberto, additional, and Stevens, Michael L., additional

Published
2020
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69. Magnetic Field Kinks and Folds in the Solar Wind

Author

Tenerani, Anna, primary, Velli, Marco, additional, Matteini, Lorenzo, additional, Réville, Victor, additional, Shi, Chen, additional, Bale, Stuart D., additional, Kasper, Justin C., additional, Bonnell, John W., additional, Case, Anthony W., additional, de Wit, Thierry Dudok, additional, Goetz, Keith, additional, Harvey, Peter R., additional, Klein, Kristopher G., additional, Korreck, Kelly, additional, Larson, Davin, additional, Livi, Roberto, additional, MacDowall, Robert J., additional, Malaspina, David M., additional, Pulupa, Marc, additional, Stevens, Michael, additional, and Whittlesey, Phyllis, additional

Published
2020
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70. Statistics and Polarization of Type III Radio Bursts Observed in the Inner Heliosphere

Author

Pulupa, Marc, primary, Bale, Stuart D., additional, Badman, Samuel T., additional, Bonnell, J. W., additional, Case, Anthony W., additional, de Wit, Thierry Dudok, additional, Goetz, Keith, additional, Harvey, Peter R., additional, Hegedus, Alexander M., additional, Kasper, Justin C., additional, Korreck, Kelly E., additional, Krasnoselskikh, Vladimir, additional, Larson, Davin, additional, Lecacheux, Alain, additional, Livi, Roberto, additional, MacDowall, Robert J., additional, Maksimovic, Milan, additional, Malaspina, David M., additional, Martínez Oliveros, Juan Carlos, additional, Meyer-Vernet, Nicole, additional, Moncuquet, Michel, additional, Stevens, Michael, additional, and Whittlesey, Phyllis, additional

Published
2020
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71. Kinetic-scale Spectral Features of Cross Helicity and Residual Energy in the Inner Heliosphere

Author

Vech, Daniel, primary, Kasper, Justin C., additional, Klein, Kristopher G., additional, Huang, Jia, additional, Stevens, Michael L., additional, Chen, Christopher H. K., additional, Case, Anthony W., additional, Korreck, Kelly, additional, Bale, Stuart D., additional, Bowen, Trevor A., additional, Whittlesey, Phyllis L., additional, Livi, Roberto, additional, Larson, Davin E., additional, Malaspina, David, additional, Pulupa, Marc, additional, Bonnell, John, additional, Harvey, Peter, additional, Goetz, Keith, additional, Dudok de Wit, Thierry, additional, and MacDowall, Robert, additional

Published
2020
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72. Density Fluctuations in the Solar Wind Based on Type III Radio Bursts Observed by Parker Solar Probe

Author

Krupar, Vratislav, primary, Szabo, Adam, additional, Maksimovic, Milan, additional, Kruparova, Oksana, additional, Kontar, Eduard P., additional, Balmaceda, Laura A., additional, Bonnin, Xavier, additional, Bale, Stuart D., additional, Pulupa, Marc, additional, Malaspina, David M., additional, Bonnell, John W., additional, Harvey, Peter R., additional, Goetz, Keith, additional, Dudok de Wit, Thierry, additional, MacDowall, Robert J., additional, Kasper, Justin C., additional, Case, Anthony W., additional, Korreck, Kelly E., additional, Larson, Davin E., additional, Livi, Roberto, additional, Stevens, Michael L., additional, Whittlesey, Phyllis L., additional, and Hegedus, Alexander M., additional

Published
2020
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73. The Role of Alfvén Wave Dynamics on the Large-scale Properties of the Solar Wind: Comparing an MHD Simulation with Parker Solar Probe E1 Data

Author

Réville, Victor, primary, Velli, Marco, additional, Panasenco, Olga, additional, Tenerani, Anna, additional, Shi, Chen, additional, Badman, Samuel T., additional, Bale, Stuart D., additional, Kasper, J. C., additional, Stevens, Michael L., additional, Korreck, Kelly E., additional, Bonnell, J. W., additional, Case, Anthony W., additional, de Wit, Thierry Dudok, additional, Goetz, Keith, additional, Harvey, Peter R., additional, Larson, Davin E., additional, Livi, Roberto, additional, Malaspina, David M., additional, MacDowall, Robert J., additional, Pulupa, Marc, additional, and Whittlesey, Phyllis L., additional

Published
2020
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74. Magnetic Connectivity of the Ecliptic Plane within 0.5 au: Potential Field Source Surface Modeling of the First Parker Solar Probe Encounter

Author

Badman, Samuel T., primary, Bale, Stuart D., additional, Martínez Oliveros, Juan C., additional, Panasenco, Olga, additional, Velli, Marco, additional, Stansby, David, additional, Buitrago-Casas, Juan C., additional, Réville, Victor, additional, Bonnell, John W., additional, Case, Anthony W., additional, Dudok de Wit, Thierry, additional, Goetz, Keith, additional, Harvey, Peter R., additional, Kasper, Justin C., additional, Korreck, Kelly E., additional, Larson, Davin E., additional, Livi, Roberto, additional, MacDowall, Robert J., additional, Malaspina, David M., additional, Pulupa, Marc, additional, Stevens, Michael L., additional, and Whittlesey, Phyllis L., additional

Published
2020
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75. Relating Streamer Flows to Density and Magnetic Structures at the Parker Solar Probe

Author

Rouillard, Alexis P., primary, Kouloumvakos, Athanasios, additional, Vourlidas, Angelos, additional, Kasper, Justin, additional, Bale, Stuart, additional, Raouafi, Nour-Edine, additional, Lavraud, Benoit, additional, Howard, Russell A., additional, Stenborg, Guillermo, additional, Stevens, Michael, additional, Poirier, Nicolas, additional, Davies, Jackie A., additional, Hess, Phillip, additional, Higginson, Aleida K., additional, Lavarra, Michael, additional, Viall, Nicholeen M., additional, Korreck, Kelly, additional, Pinto, Rui F., additional, Griton, Léa, additional, Réville, Victor, additional, Louarn, Philippe, additional, Wu, Yihong, additional, Dalmasse, Kévin, additional, Génot, Vincent, additional, Case, Anthony W., additional, Whittlesey, Phyllis, additional, Larson, Davin, additional, Halekas, Jasper S., additional, Livi, Roberto, additional, Goetz, Keith, additional, Harvey, Peter R., additional, MacDowall, Robert J., additional, Malaspina, D., additional, Pulupa, M., additional, Bonnell, J., additional, de Witt, T. Dudok, additional, and Penou, Emmanuel, additional

Published
2020
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77. The role of Alfv��n wave dynamics on the large scale properties of the solar wind: comparing an MHD simulation with PSP E1 data

Author

R��ville, Victor, Velli, Marco, Panasenco, Olga, Tenerani, Anna, Shi, Chen, Badman, Samuel T., Bale, Stuart D., Kasper, J. C., Stevens, Michael L., Korreck, Kelly E., Bonnell, J. W., Case, Anthony W., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., Larson, Davin E., Livi, Roberto, Malaspina, David M., MacDowall, Robert J., Pulupa, Marc, and Whittlesey, Phyllis L.

Subjects
Physics::Space Physics, Astrophysics::Solar and Stellar Astrophysics, FOS: Physical sciences, Astrophysics::Earth and Planetary Astrophysics, Solar and Stellar Astrophysics (astro-ph.SR), Space Physics (physics.space-ph)
Abstract

During Parker Solar Probe's first orbit, the solar wind plasma has been observed in situ closer than ever before, the perihelion on November 6th 2018 revealing a flow that is constantly permeated by large amplitude Alfv��nic fluctuations. These include radial magnetic field reversals, or switchbacks, that seem to be a persistent feature of the young solar wind. The measurements also reveal a very strong, unexpected, azimuthal velocity component. In this work, we numerically model the solar corona during this first encounter, solving the MHD equations and accounting for Alfv��n wave transport and dissipation. We find that the large scale plasma parameters are well reproduced, allowing the computation of the solar wind sources at Probe with confidence. We try to understand the dynamical nature of the solar wind to explain both the amplitude of the observed radial magnetic field and of the azimuthal velocities., Accepted Erratum includeded as an appendix. Updated references. 17 pages, 9 figures total

Published
2019
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78. SWEAP takes a scoop: Overview of the coronal and solar wind plasma instruments on Parker Solar Probe

Author

Whittlesey, P. L., Livi, R., Bale, S. D., Case, Anthony W., Korreck, Kelly E., Stevens, Michael L., Zank, G. P., Goldstein, M. L., Richardson, J. D., Belcher, John W., Skoug, Ruth M., Gallagher, D. L., Berthomier, Matthieu, Chandran, Benjamin D. G., Bookbinder, Jay, Cirtain, Jonathan W., Cranmer, Steven R., Florinski, V. A., Heerikhuisen, J., Ho, G. C., Hu, Q., Li, G., Maksimovic, M., McFadden, J. P., Maruca, B. A., Pogorelov, N. V., Szabo, Adam, Wright, Jr., Kasper, J. C., Larson, D. E., Laboratoire de Physique des Plasmas (LPP), Université Paris-Saclay-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École polytechnique (X)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], Physics::Space Physics, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; The Solar Wind Electrons Alphas and Protons (SWEAP) Investigation on Parker Solar Probe is the four sensor instrument suite responsible for determining the properties of ions and electrons in the coronal and solar wind thermal plasma. The Solar Probe Cup looks directly at the Sun around the Sun to make rapid measurements of ions and electrons flowing directly away from the Sun. The Solar Probe Analyzers look ahead (SPAN-A) and behind (SPAN-B) the spacecraft and make detailed maps of ions and electrons from all other directions in the sky. This talk reviews the SWEAP instrument suite, its commissioning status, and preliminary observations.

Published
2018

79. Solar Wind Electrons Alphas and Protons (SWEAP) Investigation: Design of the Solar Wind and Coronal Plasma Instrument Suite for Solar Probe Plus

Author

Massachusetts Institute of Technology. Department of Physics, MIT Kavli Institute for Astrophysics and Space Research, Belcher, John Winston, Lazarus, Alan J, Richardson, John D, Kasper, Justin C, Abiad, Robert, Austin, Gerry, Balat-Pichelin, Marianne, Bale, Stuart D, Berg, Peter, Bergner, Henry, Berthomier, Matthieu, Bookbinder, Jay, Brodu, Etienne, Caldwell, David, Case, Anthony W, Chandran, Benjamin D G, Cheimets, Peter, Cirtain, Jonathan W, Cranmer, Steven R, Curtis, David W, Daigneau, Peter, Dalton, Greg, Dasgupta, Brahmananda, DeTomaso, David, Diaz-Aguado, Millan, Djordjevic, Blagoje, Donaskowski, Bill, Effinger, Michael, Florinski, Vladimir, Fox, Nichola, Freeman, Mark, Gallagher, Dennis, Gary, S. P, Gauron, Tom, Gates, Richard, Goldstein, Melvin, Golub, Leon, Gordon, Dorothy A, Gurnee, Reid, Guth, Giora, Halekas, Jasper, Hatch, Ken, Heerikuisen, Jacob, Ho, George, Hu, Qiang, Johnson, Greg, Jordan, Steven P, Korreck, Kelly E, Larson, Davin, Li, Gang, Livi, Roberto, Ludlam, Michael, Maksimovic, Milan, McFadden, James P, Marchant, William, Maruca, Bennet A, McComas, David J, Messina, Luciana, Mercer, Tony, Park, Sang, Peddie, Andrew M, Pogorelov, Nikolai, Reinhart, Matthew J, Robinson, Miles, Rosen, Irene, Skoug, Ruth M, Slagle, Amanda, Steinberg, John T, Stevens, Michael L, Taylor, Ellen R, Tiu, Chris, Turin, Paul, Velli, Marco, Webb, Gary, Whittlesey, Phyllis, Wright, Ken, Wu, S. T, Zank, Gary, Szabo, Adam, 1965, Richardson, John D., Massachusetts Institute of Technology. Department of Physics, MIT Kavli Institute for Astrophysics and Space Research, Belcher, John Winston, Lazarus, Alan J, Richardson, John D, Kasper, Justin C, Abiad, Robert, Austin, Gerry, Balat-Pichelin, Marianne, Bale, Stuart D, Berg, Peter, Bergner, Henry, Berthomier, Matthieu, Bookbinder, Jay, Brodu, Etienne, Caldwell, David, Case, Anthony W, Chandran, Benjamin D G, Cheimets, Peter, Cirtain, Jonathan W, Cranmer, Steven R, Curtis, David W, Daigneau, Peter, Dalton, Greg, Dasgupta, Brahmananda, DeTomaso, David, Diaz-Aguado, Millan, Djordjevic, Blagoje, Donaskowski, Bill, Effinger, Michael, Florinski, Vladimir, Fox, Nichola, Freeman, Mark, Gallagher, Dennis, Gary, S. P, Gauron, Tom, Gates, Richard, Goldstein, Melvin, Golub, Leon, Gordon, Dorothy A, Gurnee, Reid, Guth, Giora, Halekas, Jasper, Hatch, Ken, Heerikuisen, Jacob, Ho, George, Hu, Qiang, Johnson, Greg, Jordan, Steven P, Korreck, Kelly E, Larson, Davin, Li, Gang, Livi, Roberto, Ludlam, Michael, Maksimovic, Milan, McFadden, James P, Marchant, William, Maruca, Bennet A, McComas, David J, Messina, Luciana, Mercer, Tony, Park, Sang, Peddie, Andrew M, Pogorelov, Nikolai, Reinhart, Matthew J, Robinson, Miles, Rosen, Irene, Skoug, Ruth M, Slagle, Amanda, Steinberg, John T, Stevens, Michael L, Taylor, Ellen R, Tiu, Chris, Turin, Paul, Velli, Marco, Webb, Gary, Whittlesey, Phyllis, Wright, Ken, Wu, S. T, Zank, Gary, Szabo, Adam, 1965, and Richardson, John D.

Abstract

The Solar Wind Electrons Alphas and Protons (SWEAP) Investigation on Solar Probe Plus is a four sensor instrument suite that provides complete measurements of the electrons and ionized helium and hydrogen that constitute the bulk of solar wind and coronal plasma. SWEAP consists of the Solar Probe Cup (SPC) and the Solar Probe Analyzers (SPAN). SPC is a Faraday Cup that looks directly at the Sun and measures ion and electron fluxes and flow angles as a function of energy. SPAN consists of an ion and electron electrostatic analyzer (ESA) on the ram side of SPP (SPAN-A) and an electron ESA on the anti-ram side (SPAN-B). The SPAN-A ion ESA has a time of flight section that enables it to sort particles by their mass/charge ratio, permitting differentiation of ion species. SPAN-A and -B are rotated relative to one another so their broad fields of view combine like the seams on a baseball to view the entire sky except for the region obscured by the heat shield and covered by SPC. Observations by SPC and SPAN produce the combined field of view and measurement capabilities required to fulfill the science objectives of SWEAP and Solar Probe Plus. SWEAP measurements, in concert with magnetic and electric fields, energetic particles, and white light contextual imaging will enable discovery and understanding of solar wind acceleration and formation, coronal and solar wind heating, and particle acceleration in the inner heliosphere of the solar system. SPC and SPAN are managed by the SWEAP Electronics Module (SWEM), which distributes power, formats onboard data products, and serves as a single electrical interface to the spacecraft. SWEAP data products include ion and electron velocity distribution functions with high energy and angular resolution. Full resolution data are stored within the SWEM, enabling high resolution observations of structures such as shocks, reconnection events, and other transient structures to be selected for download after the fact. This paper describes t, United States. National Aeronautics and Space Administration (contract NNN06AA01C (Task NNN10AA08T))

Published
2017

80. Solar Wind Electrons Alphas and Protons (SWEAP) Investigation: Design of the Solar Wind and Coronal Plasma Instrument Suite for Solar Probe Plus

Author

Kasper, Justin C., primary, Abiad, Robert, additional, Austin, Gerry, additional, Balat-Pichelin, Marianne, additional, Bale, Stuart D., additional, Belcher, John W., additional, Berg, Peter, additional, Bergner, Henry, additional, Berthomier, Matthieu, additional, Bookbinder, Jay, additional, Brodu, Etienne, additional, Caldwell, David, additional, Case, Anthony W., additional, Chandran, Benjamin D. G., additional, Cheimets, Peter, additional, Cirtain, Jonathan W., additional, Cranmer, Steven R., additional, Curtis, David W., additional, Daigneau, Peter, additional, Dalton, Greg, additional, Dasgupta, Brahmananda, additional, DeTomaso, David, additional, Diaz-Aguado, Millan, additional, Djordjevic, Blagoje, additional, Donaskowski, Bill, additional, Effinger, Michael, additional, Florinski, Vladimir, additional, Fox, Nichola, additional, Freeman, Mark, additional, Gallagher, Dennis, additional, Gary, S. Peter, additional, Gauron, Tom, additional, Gates, Richard, additional, Goldstein, Melvin, additional, Golub, Leon, additional, Gordon, Dorothy A., additional, Gurnee, Reid, additional, Guth, Giora, additional, Halekas, Jasper, additional, Hatch, Ken, additional, Heerikuisen, Jacob, additional, Ho, George, additional, Hu, Qiang, additional, Johnson, Greg, additional, Jordan, Steven P., additional, Korreck, Kelly E., additional, Larson, Davin, additional, Lazarus, Alan J., additional, Li, Gang, additional, Livi, Roberto, additional, Ludlam, Michael, additional, Maksimovic, Milan, additional, McFadden, James P., additional, Marchant, William, additional, Maruca, Bennet A., additional, McComas, David J., additional, Messina, Luciana, additional, Mercer, Tony, additional, Park, Sang, additional, Peddie, Andrew M., additional, Pogorelov, Nikolai, additional, Reinhart, Matthew J., additional, Richardson, John D., additional, Robinson, Miles, additional, Rosen, Irene, additional, Skoug, Ruth M., additional, Slagle, Amanda, additional, Steinberg, John T., additional, Stevens, Michael L., additional, Szabo, Adam, additional, Taylor, Ellen R., additional, Tiu, Chris, additional, Turin, Paul, additional, Velli, Marco, additional, Webb, Gary, additional, Whittlesey, Phyllis, additional, Wright, Ken, additional, Wu, S. T., additional, and Zank, Gary, additional

Published
2015
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83. Technology development for the Solar Probe Plus Faraday Cup

Author

Freeman, Mark D., primary, Kasper, Justin, additional, Case, Anthony W., additional, Daigneau, Peter, additional, Gauron, Thomas, additional, Bookbinder, Jay, additional, Brodu, Étienne, additional, Balat-Pichelin, Marianne, additional, and Wright, Kenneth, additional

Published
2013
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84. The first cosmic ray albedo proton map of the Moon

Author

Wilson, Jody K., primary, Spence, Harlan E., additional, Kasper, Justin, additional, Golightly, Michael, additional, Bern Blake, J., additional, Mazur, Joe E., additional, Townsend, Lawrence W., additional, Case, Anthony W., additional, Dixon Looper, Mark, additional, Zeitlin, Cary, additional, and Schwadron, Nathan A., additional

Published
2012
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87. Exploring the Solar Wind from Its Source on the Corona into the Inner Heliosphere during the First Solar Orbiter-Parker Solar Probe Quadrature

Author

Froment, C., Krasnoselskikh, V., Agapitov, O., Fargette, N., Lavraud, B., Larosa, A., Kretzschmar, M., Jagarlamudi, V., Velli, Marco, Malaspina, David, Whittlesey, Phyllis, Bale, Stuart, Case, Anthony, Goetz, Keith, Kasper, Justin, Korreck, Kelly, Larson, Davin, MacDowall, Robert, Mozer, F., Pulupa, Marc, Revillet, C., Stevens, Michael, Telloni, Daniele, Andretta, Vincenzo, Antonucci, Ester, Bemporad, Alessandro, Capuano, Giuseppe, Fineschi, Silvano, Giordano, Silvio, Habbal, Shadia, Perrone, Denise, Pinto, Rui, Sorriso-Valvo, Luca, Spadaro, Daniele, Susino, Roberto, Woodham, Lloyd, Zank, Gary, Romoli, Marco, Auchère, Frédéric, Bruno, Roberto, Capobianco, Gerardo, Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain, Da Deppo, Vania, De Leo, Yara, Dudok De Wit, Thierry, Frassati, Federica, Frassetto, Fabio, Guglielmino, Salvo, Harvey, Peter, Heinzel, Petr, Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Livi, Roberto, Magli, Enrico, Massone, Giuseppe, Messerotti, Mauro, Moses, John, Naletto, Giampiero, Nicolini, Gianalfredo, Nisticò, Giuseppe, Panasenco, Olga, Pancrazzi, Maurizio, Pelizzo, Maria, Reale, Fabio, Romano, Paolo, Sasso, Clementina, Schühle, Udo, Stangalini, Marco, Strachan, Leonard, Straus, Thomas, Teriaca, Luca, Uslenghi, Michela, Verscharen, Daniel, Volpicelli, Cosimo, Zangrilli, Luca, Zimbardo, Gaetano, Zuppella, Paola, Telloni, Daniele, Andretta, Vincenzo, Antonucci, Ester, Bemporad, Alessandro, Capuano, Giuseppe E., Fineschi, Silvano, Giordano, Silvio, Habbal, Shadia, Perrone, Denise, Pinto, Rui F., Sorriso-Valvo, Luca, Spadaro, Daniele, Susino, Roberto, Woodham, Lloyd D., Zank, Gary P., Romoli, Marco, Bale, Stuart D., Kasper, Justin C., Auchère, Frédéric, Bruno, Roberto, Capobianco, Gerardo, Case, Anthony W., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., Da Deppo, Vania, De Leo, Yara, Dudok de Wit, Thierry, Frassati, Federica, Frassetto, Fabio, Goetz, Keith, Guglielmino, Salvo L., Harvey, Peter R., Heinzel, Petr, Jerse, Giovanna, Korreck, Kelly E., Landini, Federico, Larson, Davin, Liberatore, Alessandro, Livi, Roberto, MacDowall, Robert J., Magli, Enrico, Malaspina, David M., Massone, Giuseppe, Messerotti, Mauro, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Nisticò, Giuseppe, Panasenco, Olga, Pancrazzi, Maurizio, Pelizzo, Maria G., Pulupa, Marc, Reale, Fabio, Romano, Paolo, Sasso, Clementina, Schühle, Udo, Stangalini, Marco, Stevens, Michael L., Strachan, Leonard, Straus, Thoma, Teriaca, Luca, Uslenghi, Michela, Velli, Marco, Verscharen, Daniel, Volpicelli, Cosimo A., Whittlesey, Phylli, Zangrilli, Luca, Zimbardo, Gaetano, Zuppella, Paola, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES)

Subjects
[PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astrophysics::High Energy Astrophysical Phenomena, Solar wind, FOS: Physical sciences, Solar radius, Solar corona, Astrophysics, 01 natural sciences, law.invention, Current sheet, Orbiter, Magnetohydrodynamics, Interplanetary turbulence, Heliosphere, Physics - Space Physics, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], law, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, 010303 astronomy & astrophysics, Coronagraph, Solar and Stellar Astrophysics (astro-ph.SR), Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Space plasmas, Astronomy and Astrophysics, Plasma, [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Corona, Space Physics (physics.space-ph), [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph], Physics - Plasma Physics, Plasma Physics (physics.plasm-ph), Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, Physics::Space Physics, Astrophysics::Earth and Planetary Astrophysics, [PHYS.PHYS.PHYS-DATA-AN]Physics [physics]/Physics [physics]/Data Analysis, Statistics and Probability [physics.data-an]
Abstract

This Letter addresses the first Solar Orbiter (SO) -- Parker Solar Probe (PSP) quadrature, occurring on January 18, 2021, to investigate the evolution of solar wind from the extended corona to the inner heliosphere. Assuming ballistic propagation, the same plasma volume observed remotely in corona at altitudes between 3.5 and 6.3 solar radii above the solar limb with the Metis coronagraph on SO can be tracked to PSP, orbiting at 0.1 au, thus allowing the local properties of the solar wind to be linked to the coronal source region from where it originated. Thanks to the close approach of PSP to the Sun and the simultaneous Metis observation of the solar corona, the flow-aligned magnetic field and the bulk kinetic energy flux density can be empirically inferred along the coronal current sheet with an unprecedented accuracy, allowing in particular estimation of the Alfv\'en radius at 8.7 solar radii during the time of this event. This is thus the very first study of the same solar wind plasma as it expands from the sub-Alfv\'enic solar corona to just above the Alfv\'en surface., Comment: 10 pages, 4 figures

Published
2021
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