The Temperature - Magnetic Field Relation in Observed and Simulated Sunspots

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F17%3A00485628" target="_blank" >RIV/67985815:_____/17:00485628 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s11207-017-1220-2" target="_blank" >http://dx.doi.org/10.1007/s11207-017-1220-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11207-017-1220-2" target="_blank" >10.1007/s11207-017-1220-2</a>

Result language

angličtina

Original language name

The Temperature - Magnetic Field Relation in Observed and Simulated Sunspots

Original language description

This work presents full-Stokes measurements of the full-split (g = 3) line Fe I 1564.85 nm with a spatial resolution of 0.5 '' obtained with the GREGOR Infrared Spectrograph in three large sunspots. The continuum intensity is corrected for instrumental scattered light, and the brightness temperature is calculated. Magnetic field strength and inclination are derived directly from the line split and the ratio of Stokes components. The continuum intensity (temperature) relations to the field strength are studied separately in the umbra, light bridges, and penumbra. The results are consistent with previous studies, and it was found that the scatter of values in the relations increases with increasing spatial resolution thanks to resolved fine structures. The observed relations show trends common for the umbra, light bridges, and the inner penumbra, while the outer penumbra has a weaker magnetic field than the inner penumbra at equal continuum intensities. This fact can be interpreted in terms of the interlocking comb magnetic structure of the penumbra. A comparison with data obtained from numerical simulations was made. The simulated data generally have a stronger magnetic field and a weaker continuum intensity than the observations, which may be explained by stray light and limited spatial resolution of the observations, and also by photometric inaccuracies of the simulations.

Czech name

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Czech description

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Type

J_imp - 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)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Solar Physics

ISSN

0038-0938

e-ISSN

—

Volume of the periodical

292

Issue of the periodical within the volume

12

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

12

Pages from-to

"188/1"-"188/12"

UT code for WoS article

000418761700019

EID of the result in the Scopus database

2-s2.0-85037359211