Magnetic Outbreak Associated with Exploding Granulations
Document Type
Article
Publication Date
1-1-2023
Abstract
Diagnosing the spatiotemporal pattern of magnetic flux on the Sun is vital for understanding the origin of solar magnetism and activity. Here, we report a new form of flux appearance, magnetic outbreak, using observations with an extremely high spatial resolution of 0 16 from the 1.6 m Goode Solar Telescope at the Big Bear Solar Observatory. Magnetic outbreak refers to an early growth of unipolar magnetic flux and its later explosion into fragments, in association with plasma upflow and exploding granulations; each individual fragment has flux of 1016-1017 Mx, moving apart with a velocity of 0.5-2.2 km s-1. The magnetic outbreak takes place in the hecto- Gauss region of pore moats. In this study, we identify six events of magnetic outbreak during 6 hr observations over an approximately 40' × 40' field of view. The newly discovered magnetic outbreak might be the first evidence of the long-anticipated convective blowup.
Identifier
85151083931 (Scopus)
Publication Title
Astrophysical Journal Letters
External Full Text Location
https://doi.org/10.3847/2041-8213/aca97c
e-ISSN
20418213
ISSN
20418205
Issue
1
Volume
942
Grant
AST-2108235
Fund Ref
Seoul National University
Recommended Citation
Jin, Chunlan; Zhou, Guiping; Ruan, Guiping; Baildon, T.; Cao, Wenda; and Wang, Jingxiu, "Magnetic Outbreak Associated with Exploding Granulations" (2023). Faculty Publications. 2346.
https://digitalcommons.njit.edu/fac_pubs/2346
