Searching for signatures of Hα spicule-like features in the solar transition region | Nived Vilangot Nhalil
Affiliation
Inter-University Centre for Astronomy and Astrophysics (IUCAA), India
Main category
Natural Sciences (Astrophysics and Astrononmy)
Caption
New instrumental and telescopes covering the optical and UV spectral regions have revealed a range of small-scale dynamic features, many of which may be related. Direct observational evidence in terms of tracking spicules across multiple wavelengths is needed to understand their role in heating the solar atmosphere. This study uses the Hα filtergrams obtained by the CRISP on SST and co-aligned IRIS data to study the signature of the Rapid Blue-shifted Excursions (RBEs) in the transition region. By studying the spatio-temporal evolution of RBEs in Hα and SJI 1400 Å channels, we found that ∼53 % of the RBEs have a transition region counterpart. From the RBE-like events that have a Si iv 1394 Å line profile, 78% of them show a Si iv line flux increase. The events that show line flux enhanceme
Further reading
Link to the European Solar Physics Online Seminars (ESPOS) webpage:
https://espos.stream/2023/09/21/Nived/
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