About: Inversions for Average Supergranular Flows Using Finite-frequency Kernels

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	I analyze the maps recording the travel-time shifts caused by averaged plasma anomalies under an %22average supergranule,%22 constructed by means of statistical averaging over 5582 individual supergranules with large divergence signals detected in two months of Helioseismic and Magnetic Imager Dopplergrams. By utilizing a three-dimensional validated time-distance inversion code, I measure a peak vertical velocity of 117 2 m s–1 at depths around 1.2 Mm in the center of the supergranule and a root-mean-square vertical velocity of 21 m s–1 over the area of the supergranule. A discrepancy between this measurement and the measured surface vertical velocity (a few m s–1) can be explained by the existence of the large-amplitude vertical flow under the surface of supergranules with large divergence signals, recently suggested by Duvall & Hanasoge. I analyze the maps recording the travel-time shifts caused by averaged plasma anomalies under an %22average supergranule,%22 constructed by means of statistical averaging over 5582 individual supergranules with large divergence signals detected in two months of Helioseismic and Magnetic Imager Dopplergrams. By utilizing a three-dimensional validated time-distance inversion code, I measure a peak vertical velocity of 117 2 m s–1 at depths around 1.2 Mm in the center of the supergranule and a root-mean-square vertical velocity of 21 m s–1 over the area of the supergranule. A discrepancy between this measurement and the measured surface vertical velocity (a few m s–1) can be explained by the existence of the large-amplitude vertical flow under the surface of supergranules with large divergence signals, recently suggested by Duvall & Hanasoge. (en)
Title	Inversions for Average Supergranular Flows Using Finite-frequency Kernels Inversions for Average Supergranular Flows Using Finite-frequency Kernels (en)
skos:prefLabel	Inversions for Average Supergranular Flows Using Finite-frequency Kernels Inversions for Average Supergranular Flows Using Finite-frequency Kernels (en)
skos:notation	RIV/67985815:_____/12:00388115!RIV13-GA0-67985815
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GPP209/12/P568), P(IAA300030808)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Švanda, Michal
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Astronomický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	142847
http://linked.open...ai/riv/idVysledku	RIV/67985815:_____/12:00388115
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Sun; interior; helioseismology (en)
http://linked.open.../riv/klicoveSlovo	helioseismology Sun interior
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[C5F464371164]
http://linked.open...i/riv/nazevZdroje	Astrophysical Journal Letters
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Interaction of moving plasma with magnetic fields in the solar photosphere Convection and plasma motions in the near-surface layers of the solar convection zone
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	759
http://linked.open...iv/tvurceVysledku	Švanda, Michal
http://linked.open...ain/vavai/riv/wos	000310581600003
issn	2041-8205
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/2041-8205/759/2/L29

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