Solar Coronal Jets Extending to High Altitudes Observed during the 2017 August 21 Total Eclipse
Yoichiro Hanaoka,Ryuichi Hasuo,Tsukasa Hirose,Akiko C. Ikeda,Tsutomu Ishibashi,Norihiro Manago,Yukio Masuda,Sakuhiro Morita,Jun Nakazawa,Osamu Ohgoe,Yoshiaki Sakai,Kazuhiro Sasaki,Koichi Takahashi,Toshiyuki Toi +13 more
TLDR
In a time series of white-light images of the corona spanning 70 minutes taken with multi-site observations of this eclipse, six jets were found as narrow structures upwardly ejected with an apparent speed of about 450 km s−1 in polar plumes as discussed by the authors.Abstract:
Coronal jets, which extend from the solar surface to beyond 2 R ⊙, were observed in the polar coronal hole regions during the total solar eclipse on 2017 August 21. In a time-series of white-light images of the corona spanning 70 minutes taken with our multi-site observations of this eclipse, six jets were found as narrow structures upwardly ejected with an apparent speed of about 450 km s−1 in polar plumes. On the other hand, extreme-ultraviolet (EUV) images taken with the Atmospheric Image Assembly of the Solar Dynamics Observatory show that all of the eclipse jets were preceded by EUV jets. Conversely, all the EUV jets whose brightnesses are comparable to ordinary soft X-ray jets and that occurred in the polar regions near the eclipse period, were observed as eclipse jets. These results suggest that ordinary polar jets generally reach high altitudes and escape from the Sun as part of the solar wind.read more
Citations
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Eruptions from quiet Sun coronal bright points - I. Observations
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Images and Spectra of the 2017 Total Solar Eclipse Corona from our Oregon Site
Jay M. Pasachoff,Christian A. Lockwood,Erin N. Meadors,Ross Yu,Cielo Perez,Marcos A. Peñaloza-Murillo,Daniel B. Seaton,Aris Voulgaris,Ron Dantowitz,Vojtech Rušin,Thanasis E. Economou +10 more
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Eruptions from quiet Sun coronal bright points. I. Observations
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