The Relationship Between the Kinematics of Coronal Mass Ejections and the Brightness of the Corona
We present an investigation into an apparent relationship between white-light coronal brightness and the kinematics of flare-associated coronal mass ejections (CMEs). Using a unique data set, known as the Large Angle and Spectrometric Coronagraph Coronal Brightness Index (CBI), we conduct a study th...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
|
| Series: | The Astrophysical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4357/add3fb |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849708653372768256 |
|---|---|
| author | Kelly Victor-French Karl Battams Brian E. Wood |
| author_facet | Kelly Victor-French Karl Battams Brian E. Wood |
| author_sort | Kelly Victor-French |
| collection | DOAJ |
| description | We present an investigation into an apparent relationship between white-light coronal brightness and the kinematics of flare-associated coronal mass ejections (CMEs). Using a unique data set, known as the Large Angle and Spectrometric Coronagraph Coronal Brightness Index (CBI), we conduct a study that explores the brightness in the lower solar corona and its relationship to the velocity of flare-associated CMEs. We analyze all M- and X-class flares that took place on or near the limbs of the Earth-facing disk of the Sun between 1996 and 2022, determine if these flares are associated with CMEs, and record the projection-corrected velocity of the eruptions if they occurred. Using the CBI data set, we evaluate the brightness in the corona directly overlying the flare source locations between 2.4 and 6.2 solar radii, and we find that above a certain level of coronal brightness, the likelihood of a high-velocity CME significantly decreases. This result implies that coronal brightness could be an important indicator of the kinematics of solar CMEs. We also highlight and discuss the unique nature of active region 12192 in 2014, observing that its unprecedented overlying coronal brightness may be related to the low CME productivity of that region. |
| format | Article |
| id | doaj-art-e6f63acbe9dd4dd5bd52fa046bf51144 |
| institution | DOAJ |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj-art-e6f63acbe9dd4dd5bd52fa046bf511442025-08-20T03:15:35ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-01987213010.3847/1538-4357/add3fbThe Relationship Between the Kinematics of Coronal Mass Ejections and the Brightness of the CoronaKelly Victor-French0https://orcid.org/0000-0003-4070-5518Karl Battams1https://orcid.org/0000-0002-8692-6925Brian E. Wood2https://orcid.org/0000-0002-4998-0893U.S. Naval Research Laboratory , 4555 Overlook Ave SW, Washington, DC 20375, USA ; kelly.d.victor-french.civ@us.navy.milU.S. Naval Research Laboratory , 4555 Overlook Ave SW, Washington, DC 20375, USA ; kelly.d.victor-french.civ@us.navy.milU.S. Naval Research Laboratory , 4555 Overlook Ave SW, Washington, DC 20375, USA ; kelly.d.victor-french.civ@us.navy.milWe present an investigation into an apparent relationship between white-light coronal brightness and the kinematics of flare-associated coronal mass ejections (CMEs). Using a unique data set, known as the Large Angle and Spectrometric Coronagraph Coronal Brightness Index (CBI), we conduct a study that explores the brightness in the lower solar corona and its relationship to the velocity of flare-associated CMEs. We analyze all M- and X-class flares that took place on or near the limbs of the Earth-facing disk of the Sun between 1996 and 2022, determine if these flares are associated with CMEs, and record the projection-corrected velocity of the eruptions if they occurred. Using the CBI data set, we evaluate the brightness in the corona directly overlying the flare source locations between 2.4 and 6.2 solar radii, and we find that above a certain level of coronal brightness, the likelihood of a high-velocity CME significantly decreases. This result implies that coronal brightness could be an important indicator of the kinematics of solar CMEs. We also highlight and discuss the unique nature of active region 12192 in 2014, observing that its unprecedented overlying coronal brightness may be related to the low CME productivity of that region.https://doi.org/10.3847/1538-4357/add3fbSolar flaresSolar coronal mass ejectionsSolar active regionsSolar corona |
| spellingShingle | Kelly Victor-French Karl Battams Brian E. Wood The Relationship Between the Kinematics of Coronal Mass Ejections and the Brightness of the Corona The Astrophysical Journal Solar flares Solar coronal mass ejections Solar active regions Solar corona |
| title | The Relationship Between the Kinematics of Coronal Mass Ejections and the Brightness of the Corona |
| title_full | The Relationship Between the Kinematics of Coronal Mass Ejections and the Brightness of the Corona |
| title_fullStr | The Relationship Between the Kinematics of Coronal Mass Ejections and the Brightness of the Corona |
| title_full_unstemmed | The Relationship Between the Kinematics of Coronal Mass Ejections and the Brightness of the Corona |
| title_short | The Relationship Between the Kinematics of Coronal Mass Ejections and the Brightness of the Corona |
| title_sort | relationship between the kinematics of coronal mass ejections and the brightness of the corona |
| topic | Solar flares Solar coronal mass ejections Solar active regions Solar corona |
| url | https://doi.org/10.3847/1538-4357/add3fb |
| work_keys_str_mv | AT kellyvictorfrench therelationshipbetweenthekinematicsofcoronalmassejectionsandthebrightnessofthecorona AT karlbattams therelationshipbetweenthekinematicsofcoronalmassejectionsandthebrightnessofthecorona AT brianewood therelationshipbetweenthekinematicsofcoronalmassejectionsandthebrightnessofthecorona AT kellyvictorfrench relationshipbetweenthekinematicsofcoronalmassejectionsandthebrightnessofthecorona AT karlbattams relationshipbetweenthekinematicsofcoronalmassejectionsandthebrightnessofthecorona AT brianewood relationshipbetweenthekinematicsofcoronalmassejectionsandthebrightnessofthecorona |