Earth's Alfvén wings driven by the April 2023 Coronal Mass Ejection
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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2024
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| author | Chen, Li-Jen Gershman, Daniel Burkholder, Brandon Chen, Yuxi Sarantos, Menelaos Jian, Lan Drake, James Dong, Chuanfei Gurram, Harsha Shuster, Jason Graham, Daniel Contel, Olivier Le Schwartz, Steven Fuselier, Stephen Madanian, Hadi Pollock, Craig Liang, Haoming Argall, Matthew Denton, Richard Rice, Rachel Beedle, Jason Genestreti, Kevin Ardakani, Akhtar Stanier, Adam Le, Ari Ng, Jonathan Bessho, Naoki Pandya, Megha Wilder, Frederick Gabrieles, Christine Cohen, Ian Wei, Hanying Russell, Christopher T. Ergun, Robert Torbert, Roy Burch, James |
| author_facet | Chen, Li-Jen Gershman, Daniel Burkholder, Brandon Chen, Yuxi Sarantos, Menelaos Jian, Lan Drake, James Dong, Chuanfei Gurram, Harsha Shuster, Jason Graham, Daniel Contel, Olivier Le Schwartz, Steven Fuselier, Stephen Madanian, Hadi Pollock, Craig Liang, Haoming Argall, Matthew Denton, Richard Rice, Rachel Beedle, Jason Genestreti, Kevin Ardakani, Akhtar Stanier, Adam Le, Ari Ng, Jonathan Bessho, Naoki Pandya, Megha Wilder, Frederick Gabrieles, Christine Cohen, Ian Wei, Hanying Russell, Christopher T. Ergun, Robert Torbert, Roy Burch, James |
| contents | We report a rare regime of Earth's magnetosphere interaction with sub-Alfvénic solar wind in which the windsock-like magnetosphere transforms into one with Alfvén wings. In the magnetic cloud of a Coronal Mass Ejection (CME) on April 24, 2023, NASA's Magnetospheric Multiscale mission distinguishes the following features: (1) unshocked and accelerated cold CME plasma coming directly against Earth's dayside magnetosphere; (2) dynamical wing filaments representing new channels of magnetic connection between the magnetosphere and foot points of the Sun's erupted flux rope; (3) cold CME ions observed with energized counter-streaming electrons, evidence of CME plasma captured due to reconnection between magnetic-cloud and Alfvén-wing field lines. The reported measurements advance our knowledge of CME interaction with planetary magnetospheres, and open new opportunities to understand how sub-Alfvénic plasma flows impact astrophysical bodies such as Mercury, moons of Jupiter, and exoplanets close to their host stars. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_08091 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Earth's Alfvén wings driven by the April 2023 Coronal Mass Ejection Chen, Li-Jen Gershman, Daniel Burkholder, Brandon Chen, Yuxi Sarantos, Menelaos Jian, Lan Drake, James Dong, Chuanfei Gurram, Harsha Shuster, Jason Graham, Daniel Contel, Olivier Le Schwartz, Steven Fuselier, Stephen Madanian, Hadi Pollock, Craig Liang, Haoming Argall, Matthew Denton, Richard Rice, Rachel Beedle, Jason Genestreti, Kevin Ardakani, Akhtar Stanier, Adam Le, Ari Ng, Jonathan Bessho, Naoki Pandya, Megha Wilder, Frederick Gabrieles, Christine Cohen, Ian Wei, Hanying Russell, Christopher T. Ergun, Robert Torbert, Roy Burch, James Space Physics Earth and Planetary Astrophysics Solar and Stellar Astrophysics We report a rare regime of Earth's magnetosphere interaction with sub-Alfvénic solar wind in which the windsock-like magnetosphere transforms into one with Alfvén wings. In the magnetic cloud of a Coronal Mass Ejection (CME) on April 24, 2023, NASA's Magnetospheric Multiscale mission distinguishes the following features: (1) unshocked and accelerated cold CME plasma coming directly against Earth's dayside magnetosphere; (2) dynamical wing filaments representing new channels of magnetic connection between the magnetosphere and foot points of the Sun's erupted flux rope; (3) cold CME ions observed with energized counter-streaming electrons, evidence of CME plasma captured due to reconnection between magnetic-cloud and Alfvén-wing field lines. The reported measurements advance our knowledge of CME interaction with planetary magnetospheres, and open new opportunities to understand how sub-Alfvénic plasma flows impact astrophysical bodies such as Mercury, moons of Jupiter, and exoplanets close to their host stars. |
| title | Earth's Alfvén wings driven by the April 2023 Coronal Mass Ejection |
| topic | Space Physics Earth and Planetary Astrophysics Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2402.08091 |