Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Benjamin D. G. Chandran"'
Autor:
Trevor A. Bowen, Ivan Y. Vasko, Stuart D. Bale, Benjamin D. G. Chandran, Alexandros Chasapis, Thierry Dudok de Wit, Alfred Mallet, Michael McManus, Romain Meyrand, Marc Pulupa, Jonathan Squire
Publikováno v:
The Astrophysical Journal Letters, Vol 972, Iss 1, p L8 (2024)
Circularly polarized, nearly parallel propagating waves are prevalent in the solar wind at ion-kinetic scales. At these scales, the spectrum of turbulent fluctuations in the solar wind steepens, often called the transition range, before flattening at
Externí odkaz:
https://doaj.org/article/99d42b9db0dd4027a7461f97588a941d
Autor:
Sofiane Bourouaine, Jean C. Perez, Benjamin D. G. Chandran, Vamsee K. Jagarlamudi, Nour E. Raouafi, Jasper S. Halekas
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L19 (2024)
In this work we analyze plasma and magnetic field data provided by the Parker Solar Probe and Solar Orbiter missions to investigate the radial evolution of the heating of Alfvénic slow wind by imbalanced Alfvén-wave (AW) turbulent fluctuations from
Externí odkaz:
https://doaj.org/article/11938667d30743f8ad12b6e82266d9b9
The Effects of Nonequilibrium Velocity Distributions on Alfvén Ion-cyclotron Waves in the Solar Wind
Autor:
Jada Walters, Kristopher G. Klein, Emily Lichko, Michael L. Stevens, Daniel Verscharen, Benjamin D. G. Chandran
Publikováno v:
The Astrophysical Journal, Vol 955, Iss 2, p 97 (2023)
In this work, we investigate how the complex structure found in solar wind proton velocity distribution functions (VDFs), rather than the commonly assumed two-component bi-Maxwellian structure, affects the onset and evolution of parallel-propagating
Externí odkaz:
https://doaj.org/article/cf1af76b0db5448ba66393b2f78e0b74
Autor:
Sofiane Bourouaine, Jean C. Perez, Nour E. Raouafi, Benjamin D. G. Chandran, Stuart D. Bale, Marco Velli
In this letter we report observations of magnetic switchback (SB) features near 1 au using data from the \emph{Wind} spacecraft. These features appear to be strikingly similar to the ones observed by the Parker Solar Probe mission (PSP) closer to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32354a05fb3c971544fac852cbc3e8d3
Autor:
Vladimir Krasnoselskikh, Säm Krucker, C. Fong, D. J. McComas, James A. Klimchuk, Tai Phan, Michel Moncuquet, N.-E. Raouafi, Marco Velli, Anthony W. Case, C. C. Chaston, Justin C. Kasper, John W. Bonnell, Melvyn L. Goldstein, David Burgess, John R. Wygant, Gregory G. Howes, Christopher H. K. Chen, Trevor A. Bowen, David Stansby, Robert E. Ergun, R. Laker, Samuel T. Badman, Stuart D. Bale, T. Dudok de Wit, F. S. Mozer, Robert J. MacDowall, Keith Goetz, David M. Malaspina, Nicole Meyer-Vernet, Jonathan Eastwood, Davin Larson, Katherine Goodrich, Michael L. Stevens, Adam Szabo, William M. Farrell, Marc Pulupa, Benjamin D. G. Chandran, Kelly E. Korreck, Paul J. Kellogg, Milan Maksimovic, James Drake, J. C. Martínez-Oliveros, Timothy S. Horbury, Cynthia A Cattell, T. Woolley, Chadi Salem, Peter Harvey
Publikováno v:
Nature
Nature, Nature Publishing Group, 2019, 576 (7786), pp.237-242. ⟨10.1038/s41586-019-1818-7⟩
Nature, Nature Publishing Group, 2019, 576 (7786), pp.237-242. ⟨10.1038/s41586-019-1818-7⟩
During the solar minimum, when the Sun is at its least active, the solar wind1,2 is observed at high latitudes as a predominantly fast (more than 500 kilometres per second), highly Alfvenic rarefied stream of plasma originating from deep within coron
Autor:
Trevor A. Bowen, Benjamin D. G. Chandran, Jonathan Squire, Stuart D. Bale, Die Duan, Kristopher G. Klein, Davin Larson, Alfred Mallet, Michael D. McManus, Romain Meyrand, Jaye L. Verniero, Lloyd D. Woodham
Publikováno v:
Physical review letters. 129(16)
The dissipation of magnetized turbulence is an important paradigm for describing heating and energy transfer in astrophysical environments such as the solar corona and wind; however, the specific collisionless processes behind dissipation and heating
Motivated by recent Parker Solar Probe (PSP) observations of "switchbacks" (abrupt, large-amplitude reversals in the radial magnetic field, which exhibit Alfv\'enic correlations) we examine the dynamics of large-amplitude Alfv\'en waves in the expand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b23f6ee5846ba3a78e3fc763631887d
http://arxiv.org/abs/2104.08321
http://arxiv.org/abs/2104.08321
Publikováno v:
J Plasma Phys
A growing body of evidence suggests that the solar wind is powered to a large extent by an Alfv\'en-wave (AW) energy flux. AWs energize the solar wind via two mechanisms: heating and work. We use high-resolution direct numerical simulations of reflec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c9a97322d4355dbefe61c983f4c0402
http://arxiv.org/abs/2103.09365
http://arxiv.org/abs/2103.09365
Autor:
Justin C. Kasper, L. D. Woodham, Michel Moncuquet, Jean C. Perez, Kris Klein, Sofiane Bourouaine, Benjamin D. G. Chandran, Stuart D. Bale, Shaela I. Jones, Trevor A. Bowen, Christopher H. K. Chen
The fourth orbit of Parker Solar Probe (PSP) reached heliocentric distances down to 27.9 Rs, allowing solar wind turbulence and acceleration mechanisms to be studied in situ closer to the Sun than previously possible. The turbulence properties were f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9dd04ebccefd350c04c43ce76607121
https://doi.org/10.5194/egusphere-egu21-3426
https://doi.org/10.5194/egusphere-egu21-3426
Autor:
Mihailo M. Martinović, Trevor A. Bowen, Anthony W. Case, Emily Lichko, Benjamin D. G. Chandran, Justin C. Kasper, Michael L. Stevens, Stuart D. Bale, Katja Klein, Jia Huang, Lorenzo Matteini, Christopher H. K. Chen
Publikováno v:
The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2021, 912 (1), pp.28. ⟨10.3847/1538-4357/abebe5⟩
The Astrophysical Journal, American Astronomical Society, 2021, 912 (1), pp.28. ⟨10.3847/1538-4357/abebe5⟩
The Parker Solar Probe (PSP) routinely observes magnetic field deflections in the solar wind at distances less than 0.3 au from the Sun. These deflections are related to structures commonly called “switchbacks” (SBs), whose origins and characteri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5ca28cdeca1464390b8c07be1f819a1
https://hal.sorbonne-universite.fr/hal-03223557
https://hal.sorbonne-universite.fr/hal-03223557