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ON THE MAGNETIC AND ENERGY CHARACTERISTICS OF RECURRENT HOMOLOGOUS JETS FROM AN EMERGING FLUX
- Source :
- The Astrophysical Journal. 833:150
- Publication Year :
- 2016
- Publisher :
- American Astronomical Society, 2016.
-
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 multi-thermal 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 {\AA} 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 amount 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.<br />Comment: 9 pages, 7 figures, 1 table
- Subjects :
- Physics
Jet (fluid)
010504 meteorology & atmospheric sciences
Magnetic energy
Astrophysics::High Energy Astrophysical Phenomena
FOS: Physical sciences
Flux
Astronomy and Astrophysics
Magnetic reconnection
Plasma
Astrophysics
Kinetic energy
01 natural sciences
Magnetic flux
Astrophysics - Solar and Stellar Astrophysics
Space and Planetary Science
Physics::Space Physics
0103 physical sciences
010303 astronomy & astrophysics
Solar and Stellar Astrophysics (astro-ph.SR)
Characteristic energy
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 15384357 and 0004637X
- Volume :
- 833
- Database :
- OpenAIRE
- Journal :
- The Astrophysical Journal
- Accession number :
- edsair.doi.dedup.....ef86ec7e03b34e89c6ec409417e1ffcf