ORCID Profile
0000-0001-9149-6547
Current Organisation
Korea Astronomy and Space Science Institute
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Publisher: American Astronomical Society
Date: 16-08-2019
Publisher: American Physical Society (APS)
Date: 03-12-2020
Publisher: Springer Science and Business Media LLC
Date: 13-02-2014
Publisher: American Astronomical Society
Date: 19-02-2020
Publisher: American Astronomical Society
Date: 05-2023
Abstract: One key aspect of understanding the solar dynamo mechanism and the evolution of solar magnetism is to properly describe the emergence of solar active regions. In this Letter, we describe the Lagrangian photospheric flows dynamics during a simulated flux emergence that produces an active region formed by pores. We analyze the lower photospheric flow organization prior, during and following the rise of an active region, uncovering the repelling and attracting photospheric structures that act as sources and sinks for magnetic element transport. Our results show that around 10 hr before the simulated emergence, considerable global changes are taking place on mesogranular scales indicated by an increase of the number of regions acting as a source to the multiple and scattered emergences of small-scale magnetic flux. At the location of active region’s appearance, the converging flows become weaker and there is an arising of a erging region 8 hr before the emergence time. Our study also indicates that the strong concentration of magnetic field affects the flow dynamics beyond the area of the actual simulated pores, leading to complex and strongly erging flows in the neighboring regions. Our findings suggest that the Lagrangian analysis is a powerful tool to describe the changes in the photospheric flows due to magnetic flux emergence.
Publisher: American Astronomical Society
Date: 16-08-2019
Location: United States of America
Location: Japan
Location: Korea, Republic of
No related grants have been discovered for Sung-Hong Park.