Spatial Relationship between CMEs and Prominence Eruptions during SC 24 and SC 25
During their propagation, coronal mass ejections (CMEs) and prominences sometimes display a nonradial motion. During the years after the solar minimum, the CME central position angle tended to be offset closer to the equator compared to that of the associated prominence eruptions (PE). No such effec...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ad2df3 |
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| author | Kostadinka Koleva Nat Gopalswamy Pooja Devi Seiji Yashiro Grzegorz Michalek |
| author_facet | Kostadinka Koleva Nat Gopalswamy Pooja Devi Seiji Yashiro Grzegorz Michalek |
| author_sort | Kostadinka Koleva |
| collection | DOAJ |
| description | During their propagation, coronal mass ejections (CMEs) and prominences sometimes display a nonradial motion. During the years after the solar minimum, the CME central position angle tended to be offset closer to the equator compared to that of the associated prominence eruptions (PE). No such effect was observed during solar maximum. The purpose of this paper is to investigate the latitudinal offsets of CMEs with respect to their source regions. We study 256 events from SC 24 and SC 25, listed in the Coordinate Data Analysis Workshop Data Center. We analyzed the CMES radial offset from the associated PEs by comparing their latitudes in the plane of the sky. This work is an extension of the previous work by Gopalswamy et al., but with an independent data set. We have confirmed the systematic equatorward offset of CME from the solar source region for the rising phase of Solar Cycle 25. Our analysis of the relation between CME linear speed and PE-CME latitudinal offset indicated that the velocities of the deflected CMEs are mainly in the range of 200 and 800 km s ^−1 . In this study, we compared the nonradial offsets for the rising and decay phases of SC 24 and our analysis has shown that during the decay phase more events deflected toward the pole can be observed. The observed variation is attributed to the presence of a substantial number of low-latitude coronal holes during the decay phase and to the influence from nearby active regions. |
| first_indexed | 2024-04-24T05:46:00Z |
| format | Article |
| id | doaj.art-8d7f544e48ba4558a1fddd7550b4b1bc |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-04-24T05:46:00Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-8d7f544e48ba4558a1fddd7550b4b1bc2024-04-23T14:47:56ZengIOP PublishingThe Astrophysical Journal1538-43572024-01-0196612210.3847/1538-4357/ad2df3Spatial Relationship between CMEs and Prominence Eruptions during SC 24 and SC 25Kostadinka Koleva0https://orcid.org/0000-0003-3683-0535Nat Gopalswamy1https://orcid.org/0000-0001-5894-9954Pooja Devi2https://orcid.org/0000-0003-0713-0329Seiji Yashiro3https://orcid.org/0000-0002-6965-3785Grzegorz Michalek4https://orcid.org/0000-0001-6848-971XNASA Goddard Space Flight Center , Greenbelt, MD 20771, USA ; kostadinkakoleva@gmail.com; The Catholic University of America , Washington, DC 20064, USA ; koleva@astro.bas.bg; Space Research and Technology Institute , Bulgarian Academy of Sciences, Sofia, BulgariaNASA Goddard Space Flight Center , Greenbelt, MD 20771, USA ; kostadinkakoleva@gmail.comDepartment of Physics, DSB Campus, Kumaun University , Nainital, IndiaNASA Goddard Space Flight Center , Greenbelt, MD 20771, USA ; kostadinkakoleva@gmail.com; The Catholic University of America , Washington, DC 20064, USA ; koleva@astro.bas.bgAstronomical Observatory of Jagiellonian University , Krakow, PolandDuring their propagation, coronal mass ejections (CMEs) and prominences sometimes display a nonradial motion. During the years after the solar minimum, the CME central position angle tended to be offset closer to the equator compared to that of the associated prominence eruptions (PE). No such effect was observed during solar maximum. The purpose of this paper is to investigate the latitudinal offsets of CMEs with respect to their source regions. We study 256 events from SC 24 and SC 25, listed in the Coordinate Data Analysis Workshop Data Center. We analyzed the CMES radial offset from the associated PEs by comparing their latitudes in the plane of the sky. This work is an extension of the previous work by Gopalswamy et al., but with an independent data set. We have confirmed the systematic equatorward offset of CME from the solar source region for the rising phase of Solar Cycle 25. Our analysis of the relation between CME linear speed and PE-CME latitudinal offset indicated that the velocities of the deflected CMEs are mainly in the range of 200 and 800 km s ^−1 . In this study, we compared the nonradial offsets for the rising and decay phases of SC 24 and our analysis has shown that during the decay phase more events deflected toward the pole can be observed. The observed variation is attributed to the presence of a substantial number of low-latitude coronal holes during the decay phase and to the influence from nearby active regions.https://doi.org/10.3847/1538-4357/ad2df3Solar coronal mass ejectionsSolar prominences |
| spellingShingle | Kostadinka Koleva Nat Gopalswamy Pooja Devi Seiji Yashiro Grzegorz Michalek Spatial Relationship between CMEs and Prominence Eruptions during SC 24 and SC 25 The Astrophysical Journal Solar coronal mass ejections Solar prominences |
| title | Spatial Relationship between CMEs and Prominence Eruptions during SC 24 and SC 25 |
| title_full | Spatial Relationship between CMEs and Prominence Eruptions during SC 24 and SC 25 |
| title_fullStr | Spatial Relationship between CMEs and Prominence Eruptions during SC 24 and SC 25 |
| title_full_unstemmed | Spatial Relationship between CMEs and Prominence Eruptions during SC 24 and SC 25 |
| title_short | Spatial Relationship between CMEs and Prominence Eruptions during SC 24 and SC 25 |
| title_sort | spatial relationship between cmes and prominence eruptions during sc 24 and sc 25 |
| topic | Solar coronal mass ejections Solar prominences |
| url | https://doi.org/10.3847/1538-4357/ad2df3 |
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