High-altitude Spider-type Prominence above the Magnetic Null Point
Rather unique observations of a high-altitude spider-type prominence in 2023 February are presented. The prominence or corresponding filament on the disk was not visible all the time but could appear and disappear in the course of a particular day. However, it persisted during the whole half of a so...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ad02f9 |
| _version_ | 1827632355670491136 |
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| author | Boris Filippov |
| author_facet | Boris Filippov |
| author_sort | Boris Filippov |
| collection | DOAJ |
| description | Rather unique observations of a high-altitude spider-type prominence in 2023 February are presented. The prominence or corresponding filament on the disk was not visible all the time but could appear and disappear in the course of a particular day. However, it persisted during the whole half of a solar rotation, being observable from day to day starting from the east limb of the Sun to the west limb. We show that the prominence was located in sagged coronal field lines just above a coronal magnetic null point. The presence of the null point and magnetic dips above it is confirmed by calculations of the potential magnetic field. The mass of the prominence apparently was appearing due to the condensation of hot coronal plasma after several eruptions that occurred in an active-region complex where the prominence was located. The prominence material flowed down along widely spread large coronal loops as coronal rain and was sometimes swept away by subsequent eruptions. |
| first_indexed | 2024-03-09T14:43:49Z |
| format | Article |
| id | doaj.art-bb29716a50584391b687afb548d213ce |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-09T14:43:49Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-bb29716a50584391b687afb548d213ce2023-11-27T12:03:43ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-01958218410.3847/1538-4357/ad02f9High-altitude Spider-type Prominence above the Magnetic Null PointBoris Filippov0https://orcid.org/0000-0002-5322-3430Pushkov Institute of Terrestrial Magnetism , Ionosphere and Radio Wave Propagation of the Russian Academy of Sciences (IZMIRAN), Troitsk, Moscow 108840, RussiaRather unique observations of a high-altitude spider-type prominence in 2023 February are presented. The prominence or corresponding filament on the disk was not visible all the time but could appear and disappear in the course of a particular day. However, it persisted during the whole half of a solar rotation, being observable from day to day starting from the east limb of the Sun to the west limb. We show that the prominence was located in sagged coronal field lines just above a coronal magnetic null point. The presence of the null point and magnetic dips above it is confirmed by calculations of the potential magnetic field. The mass of the prominence apparently was appearing due to the condensation of hot coronal plasma after several eruptions that occurred in an active-region complex where the prominence was located. The prominence material flowed down along widely spread large coronal loops as coronal rain and was sometimes swept away by subsequent eruptions.https://doi.org/10.3847/1538-4357/ad02f9Solar activitySolar filamentsSolar prominencesSolar coronal loops |
| spellingShingle | Boris Filippov High-altitude Spider-type Prominence above the Magnetic Null Point The Astrophysical Journal Solar activity Solar filaments Solar prominences Solar coronal loops |
| title | High-altitude Spider-type Prominence above the Magnetic Null Point |
| title_full | High-altitude Spider-type Prominence above the Magnetic Null Point |
| title_fullStr | High-altitude Spider-type Prominence above the Magnetic Null Point |
| title_full_unstemmed | High-altitude Spider-type Prominence above the Magnetic Null Point |
| title_short | High-altitude Spider-type Prominence above the Magnetic Null Point |
| title_sort | high altitude spider type prominence above the magnetic null point |
| topic | Solar activity Solar filaments Solar prominences Solar coronal loops |
| url | https://doi.org/10.3847/1538-4357/ad02f9 |
| work_keys_str_mv | AT borisfilippov highaltitudespidertypeprominenceabovethemagneticnullpoint |