TOMOGRAPHY OF PLASMA FLOWS IN THE UPPER SOLAR CONVECTION ZONE USING TIME-DISTANCE INVERSION COMBINING RIDGE AND PHASE-SPEED FILTERING
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10174145" target="_blank" >RIV/00216208:11320/13:10174145 - isvavai.cz</a>
Alternative codes found
RIV/67985815:_____/13:00421330
Result on the web
<a href="http://dx.doi.org/10.1088/0004-637X/775/1/7" target="_blank" >http://dx.doi.org/10.1088/0004-637X/775/1/7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0004-637X/775/1/7" target="_blank" >10.1088/0004-637X/775/1/7</a>
Alternative languages
Result language
angličtina
Original language name
TOMOGRAPHY OF PLASMA FLOWS IN THE UPPER SOLAR CONVECTION ZONE USING TIME-DISTANCE INVERSION COMBINING RIDGE AND PHASE-SPEED FILTERING
Original language description
The consistency of time-distance inversions for horizontal components of the plasma flow on supergranular scales in the upper solar convection zone is checked by comparing the results derived using two k-omega filtering procedures-ridge filtering and phase-speed filtering-commonly used in time-distance helioseismology. I show that both approaches result in similar flow estimates when finite-frequency sensitivity kernels are used. I further demonstrate that the performance of the inversion improves (in terms of a simultaneously better averaging kernel and a lower noise level) when the two approaches are combined together in one inversion. Using the combined inversion, I invert for horizontal flows in the upper 10 Mm of the solar convection zone. The flows connected with supergranulation seem to be coherent only for the top similar to 5 Mm; deeper down there is a hint of change of the convection scales toward structures larger than supergranules.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GPP209%2F12%2FP568" target="_blank" >GPP209/12/P568: Convection and plasma motions in the near-surface layers of the solar convection zone</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal
ISSN
0004-637X
e-ISSN
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Volume of the periodical
775
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
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UT code for WoS article
000324615800007
EID of the result in the Scopus database
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