Measuring Solar Differential Rotation with an Iterative Phase Correlation Method
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU138425" target="_blank" >RIV/00216305:26210/20:PU138425 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3847/1538-4365/abc702" target="_blank" >https://doi.org/10.3847/1538-4365/abc702</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/1538-4365/abc702" target="_blank" >10.3847/1538-4365/abc702</a>
Alternative languages
Result language
angličtina
Original language name
Measuring Solar Differential Rotation with an Iterative Phase Correlation Method
Original language description
A reliable inference of the differential rotation rate of the solar photosphere is essential for models of the solar interior. The work presented here is based on a novel iterative phase correlation technique, which relies on the measurement of the local shift, at the central meridian, between two images separated by a given time interval. Consequently, it does not require any specific reference features, such as sunspots or supergranules, nor extended observations spanning several months. The reliability of the method is demonstrated by applying it to high spatial and temporal resolution continuum images of the solar photosphere, at 6173 A, acquired by the Solar Dynamics Observatory Helioseismic and Magnetic Imager over one complete Carrington rotation. The data selected covers the time period of 2020 January 1 to February 2. The method was applied to one day, and to the full time interval. The differential rotation rate derived using this feature-independent technique yields values that fall in the middle of the range of those published to date. Most importantly, the method is suited for the production of detailed rotation maps of the solar photosphere. It also enables the visual and quantitative identification of the north-south asymmetry in the solar differential rotation rate, when present.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
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 SUPPLEMENT SERIES
ISSN
0067-0049
e-ISSN
1538-4365
Volume of the periodical
252
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
1-8
UT code for WoS article
000601434400001
EID of the result in the Scopus database
2-s2.0-85099036923