Prominence eruption observed in He II 304 Å up to >6 R⊙ by EUI/FSI aboard Solar Orbiter

Mierla, M.; Zhukov, A. N.; Berghmans, D.; Parenti, S.; Auchère, F.; Heinzel, P.; Seaton, D. B.; Palmerio, E.; Jejčič, S.; Janssens, J.; Kraaikamp, E.; Nicula, B.; Long, D. M.; Hayes, L. A.; Jebaraj, I. C.; Talpeanu, D.-C.; D’Huys, E.; Dolla, L.; Gissot, S.; Magdalenić, J.; Rodriguez, L.; Shestov, S.; Stegen, K.; Verbeeck, C.; Sasso, C.; Romoli, M.; Andretta, V.

doi:10.1051/0004-6361/202244020

i

Prominence eruption observed in He II 304 Å up to >6 R⊙ by EUI/FSI aboard Solar Orbiter

2022
By Mierla, M. ; Zhukov, A. N. ; Berghmans, D. ; ...

Details

Journal Title:

Astronomy & Astrophysics
Personal Author:

Mierla, M. ; Zhukov, A. N. ; Berghmans, D. ; Parenti, S. ; Auchère, F. ; Heinzel, P. ; Seaton, D. B. ; Palmerio, E. ; Jejčič, S. ; Janssens, J. ; Kraaikamp, E. ; Nicula, B. ; Long, D. M. ; Hayes, L. A. ; Jebaraj, I. C. ; Talpeanu, D.-C. ; D’Huys, E. ; Dolla, L. ; Gissot, S. ; Magdalenić, J. ; Rodriguez, L. ; Shestov, S. ; Stegen, K. ; Verbeeck, C. ; Sasso, C. ; Romoli, M. ; Andretta, V.
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information)
Description:

Aims. We report observations of a unique, large prominence eruption that was observed in the He II 304 Å passband of the Extreme Ultraviolet Imager/Full Sun Imager telescope aboard Solar Orbiter on 15–16 February 2022. Methods. Observations from several vantage points – Solar Orbiter, the Solar-Terrestrial Relations Observatory, the Solar and Heliospheric Observatory, and Earth-orbiting satellites – were used to measure the kinematics of the erupting prominence and the associated coronal mass ejection. Three-dimensional reconstruction was used to calculate the deprojected positions and speeds of different parts of the prominence. Observations in several passbands allowed us to analyse the radiative properties of the erupting prominence. Results. The leading parts of the erupting prominence and the leading edge of the corresponding coronal mass ejection propagate at speeds of around 1700 km s−1 and 2200 km s−1, respectively, while the trailing parts of the prominence are significantly slower (around 500 km s−1). Parts of the prominence are tracked up to heights of over 6 R⊙. The He II emission is probably produced via collisional excitation rather than scattering. Surprisingly, the brightness of a trailing feature increases with height. Conclusions. The reported prominence is the first observed in He II 304 Å emission at such a great height (above 6 R⊙).
Keywords:

Sun—Filaments Sun—Prominences Ultraviolet Radiation Ultraviolet Radiation Astronomy And Astrophysics Prominences Space And Planetary Science Sun: Filaments Sun: UV Radiation
Source:

Astronomy & Astrophysics, 662, L5
DOI:

https://doi.org/10.1051/0004-6361/202244020
Format:

PDF
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by/4.0/
Rights Information:

CC BY
Compliance:

Submitted
Main Document Checksum:

urn:sha256:741701929e116b7056144e258b5bcd704acf0c2794283daac13ff42810d999a1
Download URL:

https://repository.library.noaa.gov/view/noaa/48756/noaa_48756_DS1.pdf
File Type:

[PDF - 7.72 MB ]

ON THIS PAGE

Details

The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.