Possible First Detection of Gyroresonance Emission from a Coronal Mass Ejection in the Middle Corona
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866911207586267136 |
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| author | Mondal, Surajit Chen, Bin Chen, Xingyao Yu, Sijie Gary, Dale Zhang, Peijin Anderson, Marin M. Bowman, Judd D. Byrne, Ruby Catha, Morgan Chhabra, Sherry Addario, Larry D Davis, Ivey Dowell, Jayce Elder, Katherine Hallinan, Gregg Harnach, Charlie Hellbourg, Greg Hickish, Jack Hobbs, Rick Hodge, David Hodges, Mark Huang, Yuping Isella, Andrea Jacobs, Daniel C. Kemby, Ghislain Klinefelter, John T Kolopanis, Matthew Kosogorov, Nikita Lamb, James Law, Casey Mahesh, Nivedita Donnell, Brian O Plant, Kathryn Posner, Corey Powell, Travis Prayag, Vinand Rizo, Andres Romero-Wolf, Andrew Shi, Jun Taylor, Greg Trim, Jordan Virgin, Mike Vydula, Akshatha Weinreb, Sandy White, Scott Woody, David Zentmeyer, Thomas |
| author_facet | Mondal, Surajit Chen, Bin Chen, Xingyao Yu, Sijie Gary, Dale Zhang, Peijin Anderson, Marin M. Bowman, Judd D. Byrne, Ruby Catha, Morgan Chhabra, Sherry Addario, Larry D Davis, Ivey Dowell, Jayce Elder, Katherine Hallinan, Gregg Harnach, Charlie Hellbourg, Greg Hickish, Jack Hobbs, Rick Hodge, David Hodges, Mark Huang, Yuping Isella, Andrea Jacobs, Daniel C. Kemby, Ghislain Klinefelter, John T Kolopanis, Matthew Kosogorov, Nikita Lamb, James Law, Casey Mahesh, Nivedita Donnell, Brian O Plant, Kathryn Posner, Corey Powell, Travis Prayag, Vinand Rizo, Andres Romero-Wolf, Andrew Shi, Jun Taylor, Greg Trim, Jordan Virgin, Mike Vydula, Akshatha Weinreb, Sandy White, Scott Woody, David Zentmeyer, Thomas |
| contents | Routine measurements of the magnetic field of coronal mass ejections (CMEs) have been a key challenge in solar physics. Making such measurements is important both from a space weather perspective and for understanding the detailed evolution of the CME. In spite of significant efforts and multiple proposed methods, achieving this goal has not been possible to date. Here we report the first possible detection of gyroresonance emission from a CME. Assuming that the emission is happening at the third harmonic, we estimate that the magnetic field strength ranges from 7.9--5.6 G between 4.9-7.5 $R_\odot$. We also demonstrate that this high magnetic field is not the average magnetic field inside the CME, but most probably is related to small magnetic islands, which are also being observed more frequently with the availability of high-resolution and high-quality white-light images. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_16453 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Possible First Detection of Gyroresonance Emission from a Coronal Mass Ejection in the Middle Corona Mondal, Surajit Chen, Bin Chen, Xingyao Yu, Sijie Gary, Dale Zhang, Peijin Anderson, Marin M. Bowman, Judd D. Byrne, Ruby Catha, Morgan Chhabra, Sherry Addario, Larry D Davis, Ivey Dowell, Jayce Elder, Katherine Hallinan, Gregg Harnach, Charlie Hellbourg, Greg Hickish, Jack Hobbs, Rick Hodge, David Hodges, Mark Huang, Yuping Isella, Andrea Jacobs, Daniel C. Kemby, Ghislain Klinefelter, John T Kolopanis, Matthew Kosogorov, Nikita Lamb, James Law, Casey Mahesh, Nivedita Donnell, Brian O Plant, Kathryn Posner, Corey Powell, Travis Prayag, Vinand Rizo, Andres Romero-Wolf, Andrew Shi, Jun Taylor, Greg Trim, Jordan Virgin, Mike Vydula, Akshatha Weinreb, Sandy White, Scott Woody, David Zentmeyer, Thomas Solar and Stellar Astrophysics Routine measurements of the magnetic field of coronal mass ejections (CMEs) have been a key challenge in solar physics. Making such measurements is important both from a space weather perspective and for understanding the detailed evolution of the CME. In spite of significant efforts and multiple proposed methods, achieving this goal has not been possible to date. Here we report the first possible detection of gyroresonance emission from a CME. Assuming that the emission is happening at the third harmonic, we estimate that the magnetic field strength ranges from 7.9--5.6 G between 4.9-7.5 $R_\odot$. We also demonstrate that this high magnetic field is not the average magnetic field inside the CME, but most probably is related to small magnetic islands, which are also being observed more frequently with the availability of high-resolution and high-quality white-light images. |
| title | Possible First Detection of Gyroresonance Emission from a Coronal Mass Ejection in the Middle Corona |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2509.16453 |