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On the Magnetic and Energy Characteristics of Recurrent Homologous Jets from An Emerging Flux

Liu, Jiajia and Wang, Yuming and Erdélyi, Róbert and Liu, Rui and McIntosh, Scott W and Gou, Tingyu and Chen, Jun and Liu, Kai and Liu, Lijuan and Pan, Zonghao (2016) On the Magnetic and Energy Characteristics of Recurrent Homologous Jets from An Emerging Flux. ASTROPHYSICAL JOURNAL, 833. ISSN 1538-4357

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Abstract

In this paper, we present the detailed analysis of recurrent homologous jets originating from an emerging negative magnetic flux at the edge of an active region. The observed jets show multithermal features. Their evolution shows high consistence with the characteristic parameters of the emerging flux, suggesting that with more free magnetic energy, the eruptions tend to be more violent, frequent, and blowout-like. The average temperature, average electron number density, and axial speed are found to be similar for different jets, indicating that they should have been formed by plasmas from similar origins. Statistical analysis of the jets and their footpoint region conditions reveals a strong positive relationship between the footpoint region total 131 Å intensity enhancement and jets’ length/width. Stronger linearly positive relationships also exist between the total intensity enhancement/thermal energy of the footpoint regions and jets’ mass/kinetic/thermal energy, with higher cross-correlation coefficients. All the above results together confirm the direct relationship between the magnetic reconnection and the jets and validate the important role of magnetic reconnection in transporting large amounts of free magnetic energy into jets. It is also suggested that there should be more free energy released during the magnetic reconnection of blowout than of standard jet events.

Item Type: Article
Uncontrolled Keywords: Sun: Magnetic fields; Sun: atmosphere;
Subjects: Q Science / természettudomány > QB Astronomy, Astrophysics / csillagászat, asztrofizika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 22 Jan 2024 13:13
Last Modified: 22 Jan 2024 13:13
URI: http://real.mtak.hu/id/eprint/185542

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