Eruption and Interplanetary Evolution of a Stealthy Streamer-Blowout CME Observed by PSP at ∼0.5 AU
Streamer-blowout coronal mass ejections (SBO-CMEs) are the dominant CME population during solar minimum. Although they are typically slow and lack clear low-coronal signatures, they can cause geomagnetic storms. With the aid of extrapolated coronal fields and remote observations of the off-limb low...
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Frontiers Media S.A.
2022-05-01
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| Series: | Frontiers in Astronomy and Space Sciences |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fspas.2022.903676/full |
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| author | Sanchita Pal Benjamin J. Lynch Simon W. Good Erika Palmerio Eleanna Asvestari Jens Pomoell Michael L. Stevens Emilia K. J. Kilpua |
| author_facet | Sanchita Pal Benjamin J. Lynch Simon W. Good Erika Palmerio Eleanna Asvestari Jens Pomoell Michael L. Stevens Emilia K. J. Kilpua |
| author_sort | Sanchita Pal |
| collection | DOAJ |
| description | Streamer-blowout coronal mass ejections (SBO-CMEs) are the dominant CME population during solar minimum. Although they are typically slow and lack clear low-coronal signatures, they can cause geomagnetic storms. With the aid of extrapolated coronal fields and remote observations of the off-limb low corona, we study the initiation of an SBO-CME preceded by consecutive CME eruptions consistent with a multi-stage sympathetic breakout scenario. From inner-heliospheric Parker Solar Probe (PSP) observations, it is evident that the SBO-CME is interacting with the heliospheric magnetic field and plasma sheet structures draped about the CME flux rope. We estimate that 18 ± 11% of the CME’s azimuthal magnetic flux has been eroded through magnetic reconnection and that this erosion began after a heliospheric distance of ∼0.35 AU from the Sun was reached. This observational study has important implications for understanding the initiation of SBO-CMEs and their interaction with the heliospheric surroundings. |
| first_indexed | 2024-04-12T17:12:24Z |
| format | Article |
| id | doaj.art-c703344f5258489fada38c05c543e89f |
| institution | Directory Open Access Journal |
| issn | 2296-987X |
| language | English |
| last_indexed | 2024-04-12T17:12:24Z |
| publishDate | 2022-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Astronomy and Space Sciences |
| spelling | doaj.art-c703344f5258489fada38c05c543e89f2022-12-22T03:23:45ZengFrontiers Media S.A.Frontiers in Astronomy and Space Sciences2296-987X2022-05-01910.3389/fspas.2022.903676903676Eruption and Interplanetary Evolution of a Stealthy Streamer-Blowout CME Observed by PSP at ∼0.5 AUSanchita Pal0Benjamin J. Lynch1Simon W. Good2Erika Palmerio3Eleanna Asvestari4Jens Pomoell5Michael L. Stevens6Emilia K. J. Kilpua7Department of Physics, University of Helsinki, Helsinki, FinlandSpace Sciences Laboratory, University of CA–Berkeley, Berkeley, CA, United StatesDepartment of Physics, University of Helsinki, Helsinki, FinlandPredictive Science Inc., San Diego, CA, United StatesDepartment of Physics, University of Helsinki, Helsinki, FinlandDepartment of Physics, University of Helsinki, Helsinki, FinlandSmithsonian Astrophysical Observatory, Cambridge, MA, United StatesDepartment of Physics, University of Helsinki, Helsinki, FinlandStreamer-blowout coronal mass ejections (SBO-CMEs) are the dominant CME population during solar minimum. Although they are typically slow and lack clear low-coronal signatures, they can cause geomagnetic storms. With the aid of extrapolated coronal fields and remote observations of the off-limb low corona, we study the initiation of an SBO-CME preceded by consecutive CME eruptions consistent with a multi-stage sympathetic breakout scenario. From inner-heliospheric Parker Solar Probe (PSP) observations, it is evident that the SBO-CME is interacting with the heliospheric magnetic field and plasma sheet structures draped about the CME flux rope. We estimate that 18 ± 11% of the CME’s azimuthal magnetic flux has been eroded through magnetic reconnection and that this erosion began after a heliospheric distance of ∼0.35 AU from the Sun was reached. This observational study has important implications for understanding the initiation of SBO-CMEs and their interaction with the heliospheric surroundings.https://www.frontiersin.org/articles/10.3389/fspas.2022.903676/fullcoronal mass ejection (CME)heliospherereconnectioninterplanetary magnetic fieldinterplanetary magnetic cloud |
| spellingShingle | Sanchita Pal Benjamin J. Lynch Simon W. Good Erika Palmerio Eleanna Asvestari Jens Pomoell Michael L. Stevens Emilia K. J. Kilpua Eruption and Interplanetary Evolution of a Stealthy Streamer-Blowout CME Observed by PSP at ∼0.5 AU Frontiers in Astronomy and Space Sciences coronal mass ejection (CME) heliosphere reconnection interplanetary magnetic field interplanetary magnetic cloud |
| title | Eruption and Interplanetary Evolution of a Stealthy Streamer-Blowout CME Observed by PSP at ∼0.5 AU |
| title_full | Eruption and Interplanetary Evolution of a Stealthy Streamer-Blowout CME Observed by PSP at ∼0.5 AU |
| title_fullStr | Eruption and Interplanetary Evolution of a Stealthy Streamer-Blowout CME Observed by PSP at ∼0.5 AU |
| title_full_unstemmed | Eruption and Interplanetary Evolution of a Stealthy Streamer-Blowout CME Observed by PSP at ∼0.5 AU |
| title_short | Eruption and Interplanetary Evolution of a Stealthy Streamer-Blowout CME Observed by PSP at ∼0.5 AU |
| title_sort | eruption and interplanetary evolution of a stealthy streamer blowout cme observed by psp at ∼0 5 au |
| topic | coronal mass ejection (CME) heliosphere reconnection interplanetary magnetic field interplanetary magnetic cloud |
| url | https://www.frontiersin.org/articles/10.3389/fspas.2022.903676/full |
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