An Extended and Fragmented Alfv\'en Zone in the Young Solar Wind

Autor: Rohit Chhiber, William H Matthaeus, Arcadi V Usmanov, Riddhi Bandyopadhyay, Melvyn L Goldstein

Motivated by theoretical, numerical, and observational evidence, we explore the possibility that the critical transition between sub-Alfvénic flow and super-Alfvénic flow in the solar atmosphere takes place in fragmented and disconnected subvolumes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69bc0b3c9ff759972d8f172c46ddd5b7
http://arxiv.org/abs/2201.08422

Magnetic field line random walk and solar energetic particle path lengths. Stochastic theory and PSP/IS⊙IS observations

Autor: W. Sonsrettee, D. J. McComas, Mark E. Wiedenbeck, Matthew E. Hill, William H. Matthaeus, Edmond C. Roelof, A. W. Labrador, P. Tooprakai, Colin J. Joyce, J. R. Szalay, Rohit Chhiber, A. C. Cummings, A. Seripienlert, Ralph L. McNutt, Arcadi V. Usmanov, M. I. Desai, P. Chuychai, Christina Cohen, Melvyn L. Goldstein, Nathan A. Schwadron, E. R. Christian, David Ruffolo, R. A. Leske, R. A. Mewaldt, Donald G. Mitchell, Joe Giacalone

Context. In 2020 May-June, six solar energetic ion events were observed by the Parker Solar Probe/IS⊙IS instrument suite at ≈0.35 AU from the Sun. From standard velocity-dispersion analysis, the apparent ion path length is ≈0.625 AU at the onse

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d38abda4dd607dcf31b10b67f9b176af
https://resolver.caltech.edu/CaltechAUTHORS:20210608-140607023

Large-scale Structure and Turbulence Transport in the Young Solar Wind – Comparison of Parker Solar Probe Observations with a Global 3D Reynolds-averaged MHD Model

Autor: William H. Matthaeus, Rohit Chhiber, Riddhi Bandyopadhyay, Melvyn L. Goldstein, Arcadi V. Usmanov

Simulation results from a global magnetohydrodynamic model of the solar corona and the solar wind are compared with Parker Solar Probe's (PSP) observations during its first several orbits. The fully three-dimensional model (Usmanov et al., 2018, ApJ,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3f51d46bd188b8002baf29431af3a869
https://doi.org/10.5194/egusphere-egu21-12726

The Solar Orbiter magnetometer

Autor: Milan Maksimovic, T. Oddy, Mike Lockwood, G. Erdös, Roger Walsh, Chris Carr, Timothy S. Horbury, Susanne Vennerstrøm, R. Hudson, Robert F. Wimmer-Schweingruber, Emanuele Cupido, V. R. Myklebust, T. Hoeksema, Peter J. Cargill, Ingo Richter, Daniel Müller, Christopher J. Owen, I. Zouganelis, J.-A. Dominguez, Vincenzo Carbone, Joe Giacalone, William H. Matthaeus, Wolfgang Baumjohann, Melvyn L. Goldstein, Werner Magnes, David Burgess, Christopher T. Russell, Patrick Brown, Valery M. Nakariakov, Stuart D. Bale, S. Bhattacharya, Rami Vainio, I. Carrasco Blazquez, M. Bendyk, Karl-Heinz Glassmeier, Steven J. Schwartz, Marco Velli, Gary P. Zank, T. Beek, Eckart Marsch, Neil Murphy, Mathew J. Owens, Vincent Evans, Pete Riley, Jonathan Eastwood, Barry J. Whiteside, L. Matthews, R. J. Forsyth, Lyndsay Fletcher, Helen O'Brien, Javier Rodriguez-Pacheco, Andrew Walsh

Publikováno v: A9
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 642, pp.A9. ⟨10.1051/0004-6361/201937257⟩
Horbury, T S, OBrien, H, Carrasco Blazquez, I, Bendyk, M, Brown, P, Hudson, R, Evans, V, Oddy, T M, Carr, C M, Beek, T J, Cupido, E, Bhattacharya, S, Dominguez, J-A, Matthews, L, Myklebust, V R, Whiteside, B, Bale, S D, Baumjohann, W, Burgess, D, Carbone, V, Cargill, P, Eastwood, J, Erdös, G, Fletcher, L, Forsyth, R, Giacalone, J, Glassmeier, K-H, Goldstein, M L, Hoeksema, T, Lockwood, M, Magnes, W, Maksimovic, M, Marsch, E, Matthaeus, W H, Murphy, N, Nakariakov, V M, Owen, C J, Owens, M, Rodriguez-Pacheco, J, Richter, I, Riley, P, Russell, C T, Schwartz, S, Vainio, R, Velli, M, Vennerstrom, S, Walsh, R, Wimmer-Schweingruber, R F, Zank, G, Müller, D, Zouganelis, I & Walsh, A P 2020, ' The Solar Orbiter magnetometer ', Astronomy and Astrophysics, vol. 642, A9 . https://doi.org/10.1051/0004-6361/201937257

International audience; The magnetometer instrument on the Solar Orbiter mission is designed to measure the magnetic field local to the spacecraft continuously for the entire mission duration. The need to characterise not only the background magnetic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1483d635d5243bc889069f03e8c3e7c3
http://hdl.handle.net/10044/1/83735

Clustering of Intermittent Magnetic and Flow Structures near Parker Solar Probe ’s First Perihelion—A Partial-variance-of-increments Analysis

Autor: Davin Larson, Anthony W. Case, Roberto Livi, David M. Malaspina, Bennett A. Maruca, Phyllis Whittlesey, David Ruffolo, Peter Harvey, Keith Goetz, Rohit Chhiber, N. Raouafi, Riddhi Bandyopadhyay, Marc Pulupa, Michael L. Stevens, Stuart D. Bale, R. A. Qudsi, Kelly E. Korreck, Justin C. Kasper, Melvyn L. Goldstein, John W. Bonnell, William H. Matthaeus, Tulasi N. Parashar, Alexandros Chasapis, Marco Velli, T. Dudok de Wit, Robert J. MacDowall

Publikováno v: Astrophysical Journal Supplement
Astrophysical Journal Supplement, American Astronomical Society, 2020, Early Results from Parker Solar Probe: Ushering a New Frontier in Space Exploration, 246 (2), pp.31. ⟨10.3847/1538-4365/ab53d2⟩

International audience; During the Parker Solar Probe's (PSP) first perihelion pass, the spacecraft reached within a heliocentric distance of similar to 37 R-circle dot and observed numerous magnetic and flow structures characterized by sharp gradien

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3cfc4537889bab2eda8ee13bd591562
https://hal-insu.archives-ouvertes.fr/insu-02937822