Solar differential rotation in the period 1964-2016 determined by the Kanzelhohe data set
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F17%3A00482493" target="_blank" >RIV/67985815:_____/17:00482493 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1051/0004-6361/201731047" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201731047</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201731047" target="_blank" >10.1051/0004-6361/201731047</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Solar differential rotation in the period 1964-2016 determined by the Kanzelhohe data set
Popis výsledku v původním jazyce
Kanzelhohe Observatory for Solar and Environmental Research (KSO) provides daily multispectral synoptic observations of the Sun using several telescopes. In this work we made use of sunspot drawings and full disk white light CCD images. The main aim of this work is to determine the solar differential rotation by tracing sunspot groups during the period 1964-2016, using the KSO sunspot drawings and white light images. We also compare the differential rotation parameters derived in this paper from the KSO with those collected fromf other data sets and present an investigation of the north - south rotational asymmetry. The interactive procedure of position determination is fairly accurate but time consuming. In the case of the much faster automatic procedure for position determination, we found the rLSQ method for calculating rotational velocities to be more reliable than the DS method. For the test data from 2014, the rLSQ method gives a relative standard error for the differential rotation parameter B that is three times smaller than the corresponding relative standard error derived for the DS method. The best fit solar differential rotation profile for the whole time period is omega(b) = (14.47 +/- 0.01) (2.66 +/- 0.10) sin(2) b (deg/day) for the DS method and omega(b) = (14.50 +/- 0.01) (2.87 +/- 0.12) sin(2) b (deg/day) for the rLSQ method. A barely noticeable north - south asymmetry is observed for the whole time period 1964-2016 in the present paper. Rotation profiles, using different data sets, presented by other authors for the same time periods and the same tracer types, are in good agreement with our results.nn
Název v anglickém jazyce
Solar differential rotation in the period 1964-2016 determined by the Kanzelhohe data set
Popis výsledku anglicky
Kanzelhohe Observatory for Solar and Environmental Research (KSO) provides daily multispectral synoptic observations of the Sun using several telescopes. In this work we made use of sunspot drawings and full disk white light CCD images. The main aim of this work is to determine the solar differential rotation by tracing sunspot groups during the period 1964-2016, using the KSO sunspot drawings and white light images. We also compare the differential rotation parameters derived in this paper from the KSO with those collected fromf other data sets and present an investigation of the north - south rotational asymmetry. The interactive procedure of position determination is fairly accurate but time consuming. In the case of the much faster automatic procedure for position determination, we found the rLSQ method for calculating rotational velocities to be more reliable than the DS method. For the test data from 2014, the rLSQ method gives a relative standard error for the differential rotation parameter B that is three times smaller than the corresponding relative standard error derived for the DS method. The best fit solar differential rotation profile for the whole time period is omega(b) = (14.47 +/- 0.01) (2.66 +/- 0.10) sin(2) b (deg/day) for the DS method and omega(b) = (14.50 +/- 0.01) (2.87 +/- 0.12) sin(2) b (deg/day) for the rLSQ method. A barely noticeable north - south asymmetry is observed for the whole time period 1964-2016 in the present paper. Rotation profiles, using different data sets, presented by other authors for the same time periods and the same tracer types, are in good agreement with our results.nn
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10308 - Astronomy (including astrophysics,space science)
Návaznosti výsledku
Projekt
<a href="/cs/project/7E13003" target="_blank" >7E13003: High-Resolution Solar Physics Network</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Astronomy & Astrophysics
ISSN
1432-0746
e-ISSN
—
Svazek periodika
606
Číslo periodika v rámci svazku
October
Stát vydavatele periodika
FR - Francouzská republika
Počet stran výsledku
10
Strana od-do
"A72/1"-"A72/10"
Kód UT WoS článku
000412878200001
EID výsledku v databázi Scopus
2-s2.0-85031327251