Detection and Characterization of a Coronal Mass Ejection Using Interplanetary Scintillation Measurements From the Murchison Widefield Array
Abstract We have shown previously that the Murchison Widefield Array (MWA), can detect 100s of Interplanetary Scintillation (IPS) sources simultaneously across a field of view (FoV) ∼30° in extent. To test if we can use this capability to track heliospheric structures, we undertook a search of 88 hr...
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| Format: | Article |
| Language: | English |
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Wiley
2023-05-01
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| Series: | Space Weather |
| Online Access: | https://doi.org/10.1029/2022SW003396 |
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| author | J. Morgan P. I. McCauley A. Waszewski R. Ekers R. Chhetri |
| author_facet | J. Morgan P. I. McCauley A. Waszewski R. Ekers R. Chhetri |
| author_sort | J. Morgan |
| collection | DOAJ |
| description | Abstract We have shown previously that the Murchison Widefield Array (MWA), can detect 100s of Interplanetary Scintillation (IPS) sources simultaneously across a field of view (FoV) ∼30° in extent. To test if we can use this capability to track heliospheric structures, we undertook a search of 88 hr of MWA IPS data, and identified an observation likely to have a significant Coronal Mass Ejection (CME) in the FoV. We demonstrate that in a single 5‐min MWA observation we are able to localize and image a CME ∼33 hr after launch at an elongation of ∼37° from the Sun. We use IPS observables to constrain the kinematics of the CME, and describe how MWA IPS observations can be used in the future to make a unique contribution to heliospheric modeling efforts. |
| format | Article |
| id | doaj-art-ae0550397d0b450888fa09c2ecfa7b70 |
| institution | Kabale University |
| issn | 1542-7390 |
| language | English |
| publishDate | 2023-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Space Weather |
| spelling | doaj-art-ae0550397d0b450888fa09c2ecfa7b702025-01-14T16:26:43ZengWileySpace Weather1542-73902023-05-01215n/an/a10.1029/2022SW003396Detection and Characterization of a Coronal Mass Ejection Using Interplanetary Scintillation Measurements From the Murchison Widefield ArrayJ. Morgan0P. I. McCauley1A. Waszewski2R. Ekers3R. Chhetri4International Centre for Radio Astronomy Research Curtin University Bentley WA AustraliaSchool of Physics University of Sydney Sydney NSW AustraliaInternational Centre for Radio Astronomy Research Curtin University Bentley WA AustraliaInternational Centre for Radio Astronomy Research Curtin University Bentley WA AustraliaInternational Centre for Radio Astronomy Research Curtin University Bentley WA AustraliaAbstract We have shown previously that the Murchison Widefield Array (MWA), can detect 100s of Interplanetary Scintillation (IPS) sources simultaneously across a field of view (FoV) ∼30° in extent. To test if we can use this capability to track heliospheric structures, we undertook a search of 88 hr of MWA IPS data, and identified an observation likely to have a significant Coronal Mass Ejection (CME) in the FoV. We demonstrate that in a single 5‐min MWA observation we are able to localize and image a CME ∼33 hr after launch at an elongation of ∼37° from the Sun. We use IPS observables to constrain the kinematics of the CME, and describe how MWA IPS observations can be used in the future to make a unique contribution to heliospheric modeling efforts.https://doi.org/10.1029/2022SW003396 |
| spellingShingle | J. Morgan P. I. McCauley A. Waszewski R. Ekers R. Chhetri Detection and Characterization of a Coronal Mass Ejection Using Interplanetary Scintillation Measurements From the Murchison Widefield Array Space Weather |
| title | Detection and Characterization of a Coronal Mass Ejection Using Interplanetary Scintillation Measurements From the Murchison Widefield Array |
| title_full | Detection and Characterization of a Coronal Mass Ejection Using Interplanetary Scintillation Measurements From the Murchison Widefield Array |
| title_fullStr | Detection and Characterization of a Coronal Mass Ejection Using Interplanetary Scintillation Measurements From the Murchison Widefield Array |
| title_full_unstemmed | Detection and Characterization of a Coronal Mass Ejection Using Interplanetary Scintillation Measurements From the Murchison Widefield Array |
| title_short | Detection and Characterization of a Coronal Mass Ejection Using Interplanetary Scintillation Measurements From the Murchison Widefield Array |
| title_sort | detection and characterization of a coronal mass ejection using interplanetary scintillation measurements from the murchison widefield array |
| url | https://doi.org/10.1029/2022SW003396 |
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