DETERMINATION OF TRANSVERSE DENSITY STRUCTURING FROM PROPAGATING MAGNETOHYDRODYNAMIC WAVES IN THE SOLAR ATMOSPHERE
We present a Bayesian seismology inversion technique for propagating magnetohydrodynamic transverse waves observed in coronal waveguides. The technique uses theoretical predictions for the spatial damping of propagating kink waves in transversely inhomogeneous coronal waveguides. It combines wave am...
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| Veröffentlicht in: | Astrophysical journal. Letters 2013-06, Vol.769 (2), p.1-6 |
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| container_title | Astrophysical journal. Letters |
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| creator | Arregui, I RAMOS, A ASENSIO Pascoe, D J |
| description | We present a Bayesian seismology inversion technique for propagating magnetohydrodynamic transverse waves observed in coronal waveguides. The technique uses theoretical predictions for the spatial damping of propagating kink waves in transversely inhomogeneous coronal waveguides. It combines wave amplitude damping length scales along the waveguide with theoretical results for resonantly damped propagating kink waves to infer the plasma density variation across the oscillating structures. Provided that the spatial dependence of the velocity amplitude along the propagation direction is measured and the existence of two different damping regimes is identified, the technique would enable us to fully constrain the transverse density structuring, providing estimates for the density contrast and its transverse inhomogeneity length scale. |
| doi_str_mv | 10.1088/2041-8205/769/2/L34 |
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The technique uses theoretical predictions for the spatial damping of propagating kink waves in transversely inhomogeneous coronal waveguides. It combines wave amplitude damping length scales along the waveguide with theoretical results for resonantly damped propagating kink waves to infer the plasma density variation across the oscillating structures. Provided that the spatial dependence of the velocity amplitude along the propagation direction is measured and the existence of two different damping regimes is identified, the technique would enable us to fully constrain the transverse density structuring, providing estimates for the density contrast and its transverse inhomogeneity length scale.</description><identifier>ISSN: 2041-8205</identifier><identifier>EISSN: 2041-8213</identifier><identifier>DOI: 10.1088/2041-8205/769/2/L34</identifier><language>eng</language><publisher>United States</publisher><subject>AMPLITUDES ; ASTRONOMY ; ASTROPHYSICS ; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; Coronas ; DAMPING ; DENSITY ; HYDROMAGNETIC WAVES ; Inhomogeneity ; MAGNETOHYDRODYNAMICS ; OSCILLATIONS ; PLASMA DENSITY ; SEISMOLOGY ; SOLAR CORONA ; SPACE DEPENDENCE ; SUN ; VARIATIONS ; WAVE PROPAGATION ; Waveguides</subject><ispartof>Astrophysical journal. 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Letters</title><description>We present a Bayesian seismology inversion technique for propagating magnetohydrodynamic transverse waves observed in coronal waveguides. The technique uses theoretical predictions for the spatial damping of propagating kink waves in transversely inhomogeneous coronal waveguides. It combines wave amplitude damping length scales along the waveguide with theoretical results for resonantly damped propagating kink waves to infer the plasma density variation across the oscillating structures. Provided that the spatial dependence of the velocity amplitude along the propagation direction is measured and the existence of two different damping regimes is identified, the technique would enable us to fully constrain the transverse density structuring, providing estimates for the density contrast and its transverse inhomogeneity length scale.</description><subject>AMPLITUDES</subject><subject>ASTRONOMY</subject><subject>ASTROPHYSICS</subject><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</subject><subject>Coronas</subject><subject>DAMPING</subject><subject>DENSITY</subject><subject>HYDROMAGNETIC WAVES</subject><subject>Inhomogeneity</subject><subject>MAGNETOHYDRODYNAMICS</subject><subject>OSCILLATIONS</subject><subject>PLASMA DENSITY</subject><subject>SEISMOLOGY</subject><subject>SOLAR CORONA</subject><subject>SPACE DEPENDENCE</subject><subject>SUN</subject><subject>VARIATIONS</subject><subject>WAVE PROPAGATION</subject><subject>Waveguides</subject><issn>2041-8205</issn><issn>2041-8213</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqNkT1PwzAQQCMEEp-_gMUSC0vp2c6HM1qt20Zq4spxQZ2s1tiiqDQQpwP_nlRFzEx3enp3y4uiewxPGBgbEojxgBFIhlmaD8lwTuOz6OqXYnr-t0NyGV2H8A5AIMXsKmrHQgtVFhXXhayQnCCteFU_C1ULNBZVXegVqrVajvRSFdUUTZQs0ULJBZ_2Jz0o-bQSWs5WYyXHq4qXxQi98GdRo6JCeiZQLedcIa5LWS9mQonb6MKvd8Hd_c6baDkRejQbzOW0GPH5wNKcdgNisXewYRl2GHyWUWfXlDGP43zDSJy-QgwJtQnBsHHeJ0Ad9sBeaeaznsT0Jno4_W1CtzXBbjtn32yz3zvbGUIwZgxIbz2erM-2-Tq40JmPbbBut1vvXXMIBqdpzrI8jel_1JhgAlnSq_Sk2rYJoXXefLbbj3X7bTCYYzJzDGKOQUyfzBDTJ6M_kxB-6g</recordid><startdate>20130601</startdate><enddate>20130601</enddate><creator>Arregui, I</creator><creator>RAMOS, A ASENSIO</creator><creator>Pascoe, D J</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20130601</creationdate><title>DETERMINATION OF TRANSVERSE DENSITY STRUCTURING FROM PROPAGATING MAGNETOHYDRODYNAMIC WAVES IN THE SOLAR ATMOSPHERE</title><author>Arregui, I ; RAMOS, A ASENSIO ; Pascoe, D J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c393t-2c1fe0b871e10f773eca388f149b8246d04053c5210beff503e1f08d37f70be43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>AMPLITUDES</topic><topic>ASTRONOMY</topic><topic>ASTROPHYSICS</topic><topic>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</topic><topic>Coronas</topic><topic>DAMPING</topic><topic>DENSITY</topic><topic>HYDROMAGNETIC WAVES</topic><topic>Inhomogeneity</topic><topic>MAGNETOHYDRODYNAMICS</topic><topic>OSCILLATIONS</topic><topic>PLASMA DENSITY</topic><topic>SEISMOLOGY</topic><topic>SOLAR CORONA</topic><topic>SPACE DEPENDENCE</topic><topic>SUN</topic><topic>VARIATIONS</topic><topic>WAVE PROPAGATION</topic><topic>Waveguides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Arregui, I</creatorcontrib><creatorcontrib>RAMOS, A ASENSIO</creatorcontrib><creatorcontrib>Pascoe, D J</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Astrophysical journal. Letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Arregui, I</au><au>RAMOS, A ASENSIO</au><au>Pascoe, D J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>DETERMINATION OF TRANSVERSE DENSITY STRUCTURING FROM PROPAGATING MAGNETOHYDRODYNAMIC WAVES IN THE SOLAR ATMOSPHERE</atitle><jtitle>Astrophysical journal. Letters</jtitle><date>2013-06-01</date><risdate>2013</risdate><volume>769</volume><issue>2</issue><spage>1</spage><epage>6</epage><pages>1-6</pages><issn>2041-8205</issn><eissn>2041-8213</eissn><abstract>We present a Bayesian seismology inversion technique for propagating magnetohydrodynamic transverse waves observed in coronal waveguides. The technique uses theoretical predictions for the spatial damping of propagating kink waves in transversely inhomogeneous coronal waveguides. It combines wave amplitude damping length scales along the waveguide with theoretical results for resonantly damped propagating kink waves to infer the plasma density variation across the oscillating structures. Provided that the spatial dependence of the velocity amplitude along the propagation direction is measured and the existence of two different damping regimes is identified, the technique would enable us to fully constrain the transverse density structuring, providing estimates for the density contrast and its transverse inhomogeneity length scale.</abstract><cop>United States</cop><doi>10.1088/2041-8205/769/2/L34</doi><tpages>6</tpages></addata></record> |
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| source | IOP Publishing Free Content; EZB-FREE-00999 freely available EZB journals; IOPscience extra; Alma/SFX Local Collection |
| subjects | AMPLITUDES ASTRONOMY ASTROPHYSICS ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Coronas DAMPING DENSITY HYDROMAGNETIC WAVES Inhomogeneity MAGNETOHYDRODYNAMICS OSCILLATIONS PLASMA DENSITY SEISMOLOGY SOLAR CORONA SPACE DEPENDENCE SUN VARIATIONS WAVE PROPAGATION Waveguides |
| title | DETERMINATION OF TRANSVERSE DENSITY STRUCTURING FROM PROPAGATING MAGNETOHYDRODYNAMIC WAVES IN THE SOLAR ATMOSPHERE |
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