The Effect of Flow and Magnetic Twist on Resonant Absorption of Slow MHD Waves in Magnetic Flux Tubes
Observations show that there are twisted magnetic flux tubes and plasma flow throughout the solar atmosphere. The main purpose of this work is to obtain the damping rate of sausage modes in the presence of magnetic twist and plasma flow. We obtain the dispersion relation for sausage modes in slow co...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4357/acb536 |
| _version_ | 1797702026283450368 |
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| author | Mohammad Sadeghi Karam Bahari Kayoomars Karami |
| author_facet | Mohammad Sadeghi Karam Bahari Kayoomars Karami |
| author_sort | Mohammad Sadeghi |
| collection | DOAJ |
| description | Observations show that there are twisted magnetic flux tubes and plasma flow throughout the solar atmosphere. The main purpose of this work is to obtain the damping rate of sausage modes in the presence of magnetic twist and plasma flow. We obtain the dispersion relation for sausage modes in slow continuity in an inhomogeneous layer under the conditions of magnetic pores, then we solve it numerically. For the selected density profile, the magnetic field, and the plasma flow as a function of radius across the inhomogeneous layer, we show that the effect of the twisted magnetic field on the resonance absorption at low speed of the plasma flow is greater than one at high speed. |
| first_indexed | 2024-03-12T04:45:16Z |
| format | Article |
| id | doaj.art-aa251ae29b83464cb2b14e0133aa8812 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T04:45:16Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-aa251ae29b83464cb2b14e0133aa88122023-09-03T09:29:32ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-01944219410.3847/1538-4357/acb536The Effect of Flow and Magnetic Twist on Resonant Absorption of Slow MHD Waves in Magnetic Flux TubesMohammad Sadeghi0https://orcid.org/0000-0002-6409-7679Karam Bahari1https://orcid.org/0000-0002-4838-5646Kayoomars Karami2https://orcid.org/0000-0003-0008-0090Department of Physics, University of Kurdistan , Pasdaran Street, P.O. Box 66177-15175, Sanandaj, Iran; Centre for Mathematical Plasma Astrophysics (CmPA), KU Leuven, Celestijnenlaan 200B bus 2400, B-3001 Leuven, BelgiumPhysics Department, Faculty of Science, Razi University , Kermanshah, IranDepartment of Physics, University of Kurdistan , Pasdaran Street, P.O. Box 66177-15175, Sanandaj, IranObservations show that there are twisted magnetic flux tubes and plasma flow throughout the solar atmosphere. The main purpose of this work is to obtain the damping rate of sausage modes in the presence of magnetic twist and plasma flow. We obtain the dispersion relation for sausage modes in slow continuity in an inhomogeneous layer under the conditions of magnetic pores, then we solve it numerically. For the selected density profile, the magnetic field, and the plasma flow as a function of radius across the inhomogeneous layer, we show that the effect of the twisted magnetic field on the resonance absorption at low speed of the plasma flow is greater than one at high speed.https://doi.org/10.3847/1538-4357/acb536Solar physicsSolar photosphereSolar atmosphere |
| spellingShingle | Mohammad Sadeghi Karam Bahari Kayoomars Karami The Effect of Flow and Magnetic Twist on Resonant Absorption of Slow MHD Waves in Magnetic Flux Tubes The Astrophysical Journal Solar physics Solar photosphere Solar atmosphere |
| title | The Effect of Flow and Magnetic Twist on Resonant Absorption of Slow MHD Waves in Magnetic Flux Tubes |
| title_full | The Effect of Flow and Magnetic Twist on Resonant Absorption of Slow MHD Waves in Magnetic Flux Tubes |
| title_fullStr | The Effect of Flow and Magnetic Twist on Resonant Absorption of Slow MHD Waves in Magnetic Flux Tubes |
| title_full_unstemmed | The Effect of Flow and Magnetic Twist on Resonant Absorption of Slow MHD Waves in Magnetic Flux Tubes |
| title_short | The Effect of Flow and Magnetic Twist on Resonant Absorption of Slow MHD Waves in Magnetic Flux Tubes |
| title_sort | effect of flow and magnetic twist on resonant absorption of slow mhd waves in magnetic flux tubes |
| topic | Solar physics Solar photosphere Solar atmosphere |
| url | https://doi.org/10.3847/1538-4357/acb536 |
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