| 2020 |
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Spectral signatures of recursive magnetic field reconnection
Tenerani, A.; Velli, M.;
Published by: \mnras Published on: 01/2020
YEAR: 2020 DOI: 10.1093/mnras/stz3310
Parker Data Used; magnetic reconnection; MHD; plasmas; turbulence; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics
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| 2019 |
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Alfv\ enic velocity spikes and rotational flows in the near-Sun solar wind
Kasper, J.~C.; Bale, S.~D.; Belcher, J.~W.; Berthomier, M.; Case, A.~W.; Chandran, B.~D.~G.; Curtis, D.~W.; Gallagher, D.; Gary, S.~P.; Golub, L.; Halekas, J.~S.; Ho, G.~C.; Horbury, T.~S.; Hu, Q.; Huang, J.; Klein, K.~G.; Korreck, K.~E.; Larson, D.~E.; Livi, R.; Maruca, B.; Lavraud, B.; Louarn, P.; Maksimovic, M.; Martinovic, M.; McGinnis, D.; Pogorelov, N.~V.; Richardson, J.~D.; Skoug, R.~M.; Steinberg, J.~T.; Stevens, M.~L.; Szabo, A.; Velli, M.; Whittlesey, P.~L.; Wright, K.~H.; Zank, G.~P.; MacDowall, R.~J.; McComas, D.~J.; McNutt, R.~L.; Pulupa, M.; Raouafi, N.~E.; Schwadron, N.~A.;
Published by: \nat Published on: 12/2019
YEAR: 2019 DOI: 10.1038/s41586-019-1813-z
Parker Data Used
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Highly structured slow solar wind emerging from an equatorial coronal hole
During the solar minimum, when the Sun is at its least active, the solar wind is observed at high latitudes as a predominantly fast (more than 500 kilometres per second), highly Alfv\ enic rarefied stream of plasma originating from deep within coronal holes. Closer to the ecliptic plane, the solar wind is interspersed with a more variable slow wind of less than 500 kilometres per second. The precise origins of the slow wind streams are less certain; theories and observations suggest that they may originate at the tips of ...
Bale, S.; Badman, S.; Bonnell, J.; Bowen, T.; Burgess, D.; Case, A.; Cattell, C.; Chandran, B.; Chaston, C.; Chen, C.; Drake, J.; de Wit, Dudok; Eastwood, J.; Ergun, R.; Farrell, W.; Fong, C.; Goetz, K.; Goldstein, M.; Goodrich, K.; Harvey, P.; Horbury, T.; Howes, G.; Kasper, J.; Kellogg, P.; Klimchuk, J.; Korreck, K.; Krasnoselskikh, V.; Krucker, S.; Laker, R.; Larson, D.; MacDowall, R.; Maksimovic, M.; Malaspina, D.; Martinez-Oliveros, J.; McComas, D.; Meyer-Vernet, N.; Moncuquet, M.; Mozer, F.; Phan, T.; Pulupa, M.; Raouafi, N.; Salem, C.; Stansby, D.; Stevens, M.; Szabo, A.; Velli, M.; Woolley, T.; Wygant, J.;
Published by: Nature Published on: 12/2019
YEAR: 2019 DOI: 10.1038/s41586-019-1818-7
Parker Data Used; parker solar probe; Solar Probe Plus
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Magnetic Field Line Twisting by Photospheric Vortices: Energy Storage and Release
Rappazzo, A.~F.; Velli, M.; Dahlburg, R.~B.; Einaudi, G.;
Published by: \apj Published on: 10/2019
YEAR: 2019 DOI: 10.3847/1538-4357/ab3c69
Parker Data Used; magnetohydrodynamics: MHD; Sun: corona; Sun: coronal mass ejections: CMEs; Astrophysics - Solar and Stellar Astrophysics
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Dynamic Evolution of Current Sheets, Ideal Tearing, Plasmoid Formation and Generalized Fractal Reconnection Scaling Relations
Singh, K.~A.~P.; Pucci, Fulvia; Tenerani, Anna; Shibata, Kazunari; Hillier, Andrew; Velli, Marco;
Published by: \apj Published on: 08/2019
YEAR: 2019 DOI: 10.3847/1538-4357/ab2b99
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; plasmas; Physics - Plasma Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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Large-scale Magnetic Funnels in the Solar Corona
Panasenco, Olga; Velli, Marco; Panasenco, Aram;
Published by: \apj Published on: 03/2019
YEAR: 2019 DOI: 10.3847/1538-4357/ab017c
Parker Data Used; Solar wind; Sun: activity; Sun: corona; Sun: coronal mass ejections: CMEs; Sun: filaments; prominences; Sun: magnetic fields
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| 2018 |
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Dependence of Coronal Loop Temperature on Loop Length and Magnetic Field Strength
Dahlburg, R.~B.; Einaudi, G.; Ugarte-Urra, I.; Rappazzo, A.~F.; Velli, M.;
Published by: \apj Published on: 12/2018
YEAR: 2018 DOI: 10.3847/1538-4357/aae535
Parker Data Used; magnetohydrodynamics: MHD; Sun: activity; Sun: corona; turbulence
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Nonlinear Firehose Relaxation and Constant-B Field Fluctuations
Tenerani, Anna; Velli, Marco;
Published by: \apjl Published on: 11/2018
YEAR: 2018 DOI: 10.3847/2041-8213/aaec01
Parker Data Used; instabilities; plasmas; Solar wind; waves; Physics - Plasma Physics
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Parametric Decay and the Origin of the Low-frequency Alfv\ enic Spectrum of the Solar Wind
The fast solar wind shows a wide spectrum of transverse magnetic and velocity field perturbations. These perturbations are strongly correlated in the sense of Alfv\ en waves propagating mostly outward, from the Sun to the interplanetary medium. They are likely to be fundamental to the acceleration and the heating of the solar wind. However, the precise origin of the broadband spectrum is unknown to date. Typical periods of chromospheric Alfv\ en waves are limited to a few minutes, and any longer period perturbations shoul ...
Réville, Victor; Tenerani, Anna; Velli, Marco;
Published by: The Astrophysical Journal Published on: 10/2018
YEAR: 2018 DOI: 10.3847/1538-4357/aadb8f
instabilities; magnetohydrodynamics: MHD; methods: numerical; parker solar probe; Solar Probe Plus; Solar wind; waves
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Subresolution activity in solar and stellar coronae from magnetic field line tangling
Rappazzo, A.~F.; Dahlburg, R.~B.; Einaudi, G.; Velli, M.;
Published by: \mnras Published on: 08/2018
YEAR: 2018 DOI: 10.1093/mnras/sty1132
Parker Data Used; MHD; turbulence; stars: activity; stars: coronae; stars: magnetic field; stars: solar-type; Astrophysics - Solar and Stellar Astrophysics
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Marginal Stability of Sweet-Parker Type Current Sheets at Low Lundquist Numbers
Shi, Chen; Velli, Marco; Tenerani, Anna;
Published by: \apj Published on: 06/2018
YEAR: 2018 DOI: 10.3847/1538-4357/aabd83
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; Physics - Plasma Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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Onset of fast ideal tearing in thin current sheets: Dependence on the equilibrium current profile
Pucci, F.; Velli, M.; Tenerani, A.; Del Sarto, D.;
Published by: Physics of Plasmas Published on: 03/2018
YEAR: 2018 DOI: 10.1063/1.5022988
Parker Data Used; Physics - Plasma Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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| 2017 |
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The Parametric Instability of Alfv\ en Waves: Effects of Temperature Anisotropy
Tenerani, Anna; Velli, Marco; Hellinger, Petr;
Published by: \apj Published on: 12/2017
YEAR: 2017 DOI: 10.3847/1538-4357/aa9bef
Parker Data Used; instabilities; plasmas; Sun: heliosphere; waves; Physics - Space Physics
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Fast Magnetic Reconnection: \textquotedblleftIdeal\textquotedblright Tearing and the Hall Effect
Pucci, Fulvia; Velli, Marco; Tenerani, Anna;
Published by: \apj Published on: 08/2017
YEAR: 2017 DOI: 10.3847/1538-4357/aa7b82
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; plasmas; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics
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Coronal Heating Topology: The Interplay of Current Sheets and Magnetic Field Lines
Rappazzo, A.~F.; Matthaeus, W.~H.; Ruffolo, D.; Velli, M.; Servidio, S.;
Published by: \apj Published on: 07/2017
YEAR: 2017 DOI: 10.3847/1538-4357/aa79f2
Parker Data Used; magnetohydrodynamics: MHD; Solar wind; Sun: activity; Sun: corona; Sun: magnetic fields; turbulence; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics
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Evolving Waves and Turbulence in the Outer Corona and Inner Heliosphere: The Accelerating Expanding Box
Tenerani, Anna; Velli, Marco;
Published by: \apj Published on: 07/2017
YEAR: 2017 DOI: 10.3847/1538-4357/aa71b9
Parker Data Used; magnetohydrodynamics: MHD; methods: numerical; Solar wind; Sun: heliosphere; turbulence; waves; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics
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| 2016 |
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Closed-field Coronal Heating Driven by Wave Turbulence
Downs, Cooper; Lionello, Roberto; c, Zoran; Linker, Jon; Velli, Marco;
Published by: \apj Published on: 12/2016
YEAR: 2016 DOI: 10.3847/0004-637X/832/2/180
Parker Data Used; magnetohydrodynamics: MHD; Sun: corona; Sun: magnetic fields; turbulence; Astrophysics - Solar and Stellar Astrophysics
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The FIELDS Instrument Suite for Solar Probe Plus
NASA\textquoterights Solar Probe Plus (SPP) mission will make the first in situ measurements of the solar corona and the birthplace of the solar wind. The FIELDS instrument suite on SPP will make direct measurements of electric and magnetic fields, the properties of in situ plasma waves, electron density and temperature profiles, and interplanetary radio emissions, amongst other things. Here, we describe the scientific objectives targeted by the SPP/FIELDS instrument, the instrument design itself, and the instrument conce ...
Bale, S.; Goetz, K.; Harvey, P.; Turin, P.; Bonnell, J.; de Wit, T.; Ergun, R.; MacDowall, R.; Pulupa, M.; Andre, M.; Bolton, M.; Bougeret, J.-L.; Bowen, T.; Burgess, D.; Cattell, C.; Chandran, B.; Chaston, C.; Chen, C.; Choi, M.; Connerney, J.; Cranmer, S.; Diaz-Aguado, M.; Donakowski, W.; Drake, J.; Farrell, W.; Fergeau, P.; Fermin, J.; Fischer, J.; Fox, N.; Glaser, D.; Goldstein, M.; Gordon, D.; Hanson, E.; Harris, S.; Hayes, L.; Hinze, J.; Hollweg, J.; Horbury, T.; Howard, R.; Hoxie, V.; Jannet, G.; Karlsson, M.; Kasper, J.; Kellogg, P.; Kien, M.; Klimchuk, J.; Krasnoselskikh, V.; Krucker, S.; Lynch, J.; Maksimovic, M.; Malaspina, D.; Marker, S.; Martin, P.; Martinez-Oliveros, J.; McCauley, J.; McComas, D.; McDonald, T.; Meyer-Vernet, N.; Moncuquet, M.; Monson, S.; Mozer, F.; Murphy, S.; Odom, J.; Oliverson, R.; Olson, J.; Parker, E.; Pankow, D.; Phan, T.; Quataert, E.; Quinn, T.; Ruplin, S.; Salem, C.; Seitz, D.; Sheppard, D.; Siy, A.; Stevens, K.; Summers, D.; Szabo, A.; Timofeeva, M.; Vaivads, A.; Velli, M.; Yehle, A.; Werthimer, D.; Wygant, J.;
Published by: Space Science Reviews Published on: 12/2016
YEAR: 2016 DOI: 10.1007/s11214-016-0244-5
Coronal heating; Parker Data Used; parker solar probe; Solar Probe Plus
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The Solar Probe Plus Mission: Humanity\textquoterights First Visit to Our Star
Solar Probe Plus (SPP) will be the first spacecraft to fly into the low solar corona. SPP\textquoterights main science goal is to determine the structure and dynamics of the Sun\textquoterights coronal magnetic field, understand how the solar corona and wind are heated and accelerated, and determine what processes accelerate energetic particles. Understanding these fundamental phenomena has been a top-priority science goal for over five decades, dating back to the 1958 Simpson Committee Report. The scale and concept of su ...
Fox, N.; Velli, M.; Bale, S.; Decker, R.; Driesman, A.; Howard, R.; Kasper, J.; Kinnison, J.; Kusterer, M.; Lario, D.; Lockwood, M.; McComas, D.; Raouafi, N.; Szabo, A.;
Published by: Space Science Reviews Published on: 12/2016
YEAR: 2016 DOI: 10.1007/s11214-015-0211-6
Corona; Heliophysics; NASA mission; Parker Data Used; parker solar probe; Solar Probe Plus; Solar wind; SPP
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Inward Motions in the Outer Solar Corona between 7 and 12 R $_☉$: Evidence for Waves or Magnetic Reconnection Jets?
Tenerani, Anna; Velli, Marco; DeForest, Craig;
Published by: \apjl Published on: 07/2016
YEAR: 2016 DOI: 10.3847/2041-8205/825/1/L3
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; Solar wind; Sun: corona; waves
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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
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The Solar Probe Plus Ground Based Network
Executive Summary. The role of the Solar Probe Plus (SPP) Ground-Based Network\ (SPP-GBN) is to optimize and enhance the science return of the SPP mission by\ providing unique data from the ground. The role of the GBN extends to planning and\ coordination, supported by appropriate infrastructure, to ensure that the right kinds of\ observations are acquired by the various facilities (see below), at the right times, and that\ the data are readily accessible to the community for a variety of uses. Th ...
Schwadron, N.; Bastian, T.; Leibacher, J.; Gary, D.; Pevtsov, A.; Velli, M.; Burkpile, J.; Raouafi, N.; Deforest, C.;
Published by: Published on:
YEAR: 2016 DOI:
Parker Data Used; SPP White Papers
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| 2015 |
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Magnetic Reconnection: Recursive Current Sheet Collapse Triggered by \textquotedblleftIdeal\textquotedblright Tearing
Tenerani, Anna; Velli, Marco; Rappazzo, Antonio; Pucci, Fulvia;
Published by: \apjl Published on: 11/2015
YEAR: 2015 DOI: 10.1088/2041-8205/813/2/L32
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; Sun: corona; Physics - Plasma Physics
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Solar Wind Electrons Alphas and Protons (SWEAP) Investigation: Design of the Solar Wind and Coronal Plasma Instrument Suite for Solar Probe Plus
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 ...
Kasper, Justin; Abiad, Robert; Austin, Gerry; Balat-Pichelin, Marianne; Bale, Stuart; Belcher, John; Berg, Peter; Bergner, Henry; Berthomier, Matthieu; Bookbinder, Jay; Brodu, Etienne; Caldwell, David; Case, Anthony; Chandran, Benjamin; Cheimets, Peter; Cirtain, Jonathan; Cranmer, Steven; Curtis, David; 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, Peter; Gauron, Tom; Gates, Richard; Goldstein, Melvin; Golub, Leon; Gordon, Dorothy; Gurnee, Reid; Guth, Giora; Halekas, Jasper; Hatch, Ken; Heerikuisen, Jacob; Ho, George; Hu, Qiang; Johnson, Greg; Jordan, Steven; Korreck, Kelly; Larson, Davin; Lazarus, Alan; Li, Gang; Livi, Roberto; Ludlam, Michael; Maksimovic, Milan; McFadden, James; Marchant, William; Maruca, Bennet; McComas, David; Messina, Luciana; Mercer, Tony; Park, Sang; Peddie, Andrew; Pogorelov, Nikolai; Reinhart, Matthew; Richardson, John; Robinson, Miles; Rosen, Irene; Skoug, Ruth; Slagle, Amanda; Steinberg, John; Stevens, Michael; Szabo, Adam; Taylor, Ellen; Tiu, Chris; Turin, Paul; Velli, Marco; Webb, Gary; Whittlesey, Phyllis; Wright, Ken; Wu, S.; Zank, Gary;
Published by: Space Science Reviews Published on: 10/2015
YEAR: 2015 DOI: 10.1007/s11214-015-0206-3
Acceleration; Corona; Heating; Parker Data Used; Solar Probe Plus; Solar wind plasma; SWEAP
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Resistive Magnetohydrodynamics Simulations of the Ideal Tearing Mode
Landi, S.; Del Zanna, L.; Papini, E.; Pucci, F.; Velli, M.;
Published by: \apj Published on: 06/2015
YEAR: 2015 DOI: 10.1088/0004-637X/806/1/131
Parker Data Used; magnetohydrodynamics: MHD; magnetic reconnection; methods: numerical; plasmas; Sun: magnetic fields; Astrophysics - Solar and Stellar Astrophysics
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| 2014 |
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Application of a Solar Wind Model Driven by Turbulence Dissipation to a 2D Magnetic Field Configuration
Lionello, Roberto; Velli, Marco; Downs, Cooper; Linker, Jon; c, Zoran;
Published by: \apj Published on: 12/2014
YEAR: 2014 DOI: 10.1088/0004-637X/796/2/111
Parker Data Used; magnetohydrodynamics: MHD; Solar wind; turbulence; waves; Astrophysics - Solar and Stellar Astrophysics
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Integrated Science Investigation of the Sun (ISIS): Design of the Energetic Particle Investigation
The Integrated Science Investigation of the Sun (ISIS) is a complete science investigation on the Solar Probe Plus (SPP) mission, which flies to within nine solar radii of the Sun\textquoterights surface. ISIS comprises a two-instrument suite to measure energetic particles over a very broad energy range, as well as coordinated management, science operations, data processing, and scientific analysis. Together, ISIS observations allow us to explore the mechanisms of energetic particles dynamics, including their: (1)\ O ...
McComas, D.; Alexander, N.; Angold, N.; Bale, S.; Beebe, C.; Birdwell, B.; Boyle, M.; Burgum, J.; Burnham, J.; Christian, E.; Cook, W.; Cooper, S.; Cummings, A.; Davis, A.; Desai, M.; Dickinson, J.; Dirks, G.; Do, D.; Fox, N.; Giacalone, J.; Gold, R.; Gurnee, R.; Hayes, J.; Hill, M.; Kasper, J.; Kecman, B.; Klemic, J.; Krimigis, S.; Labrador, A.; Layman, R.; Leske, R.; Livi, S.; Matthaeus, W.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Nelson, K.; Parker, C.; Rankin, J.; Roelof, E.; Schwadron, N.; Seifert, H.; Shuman, S.; Stokes, M.; Stone, E.; Vandegriff, J.; Velli, M.; von Rosenvinge, T.; Weidner, S.; Wiedenbeck, M.; Wilson, P.;
Published by: Space Science Reviews Published on: 07/2014
YEAR: 2014 DOI: 10.1007/s11214-014-0059-1
CMEs; Corona; ISIS; Parker Data Used; Particle acceleration; SEPs; Solar energetic particles; Solar Probe Plus
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Validating a Time-dependent Turbulence-driven Model of the Solar Wind
Lionello, Roberto; Velli, Marco; Downs, Cooper; Linker, Jon; c, Zoran; Verdini, Andrea;
Published by: \apj Published on: 04/2014
YEAR: 2014 DOI: 10.1088/0004-637X/784/2/120
Parker Data Used; magnetohydrodynamics: MHD; Solar wind; turbulence; waves; Astrophysics - Solar and Stellar Astrophysics
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| 2013 |
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Field Lines Twisting in a Noisy Corona: Implications for Energy Storage and Release, and Initiation of Solar Eruptions
Rappazzo, A.~F.; Velli, M.; Einaudi, G.;
Published by: \apj Published on: 07/2013
YEAR: 2013 DOI: 10.1088/0004-637X/771/2/76
Parker Data Used; magnetohydrodynamics: MHD; Sun: corona; Sun: coronal mass ejections: CMEs; Sun: magnetic topology; turbulence; Astrophysics - Solar and Stellar Astrophysics
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| 2012 |
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Interchange Reconnection in a Turbulent Corona
Rappazzo, A.~F.; Matthaeus, W.~H.; Ruffolo, D.; Servidio, S.; Velli, M.;
Published by: \apjl Published on: 10/2012
YEAR: 2012 DOI: 10.1088/2041-8205/758/1/L14
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; Solar wind; Sun: corona; Sun: magnetic topology; turbulence; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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| 2011 |
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CORONAL PLUMES IN THE FAST SOLAR WIND
The expansion of a coronal hole filled with a discrete number of higher density coronal plumes is simulated using a time-dependent two-dimensional code. A solar wind model including an exponential coronal heating function and a flux of Alfv\ en waves propagating both inside and outside the structures is taken as a basic state. Different plasma plume profiles are obtained by using different scale heights for the heating rates. Remote sensing and solar wind in situ observations are used to constrain the parameter range of t ...
Velli, Marco; Lionello, Roberto; Linker, Jon; c, Zoran;
Published by: The Astrophysical Journal Published on: 07/2011
YEAR: 2011 DOI: 10.1088/0004-637X/736/1/32
parker solar probe; Solar Probe Plus; Solar wind; Sun: corona; Sun: heliosphere
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