Multi-Wavelength Eclipse Observations of a Quiescent Prominence Multi-Wavelength Eclipse Observations of a Quiescent Prominence Multi-Wavelength Eclipse Observations of a Quiescent Prominence

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F14%3APU109115" target="_blank" >RIV/00216305:26210/14:PU109115 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s11207-014-0482-1" target="_blank" >http://dx.doi.org/10.1007/s11207-014-0482-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11207-014-0482-1" target="_blank" >10.1007/s11207-014-0482-1</a>

Result language

angličtina

Original language name

Multi-Wavelength Eclipse Observations of a Quiescent Prominence Multi-Wavelength Eclipse Observations of a Quiescent Prominence Multi-Wavelength Eclipse Observations of a Quiescent Prominence

Original language description

We construct the maps of temperatures, geometrical thicknesses, electron densities and gas pressures in a quiescent prominence. For this we use the RGB signal of the prominence visible-light emission detected during the total solar eclipse of 1 August 2008 in Mongolia and quasi-simultaneous H alpha spectra taken at OndA (TM) ejov Observatory. The method of disentangling the electron density and geometrical (effective) thickness was described by Jeji and Heinzel (Solar Phys. 254, 89 -aEuro parts per thousand 100, 2009) and is used here for the first time to analyse the spatial variations of prominence parameters. For the studied prominence we obtained the following range of parameters: temperature 6000 -aEuro parts per thousand 15 000 K, effective thickness 200 -aEuro parts per thousand 15000 km, electron density 5x10(9) -aEuro parts per thousand 10(11) cm(-3) and gas pressure 0.02 -aEuro parts per thousand 0.2 dyn cm(-2) (assuming a fixed ionisation degree n (p)/n (H)=0.5). The electron density increases towards the bottom of the prominence, which we explain by an enhanced photoionisation due to the incident solar radiation. To confirm this, we construct a two-dimensional radiative-transfer model with realistic prominence illumination.

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

—

OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

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

1573-093X

Volume of the periodical

2014 (289)

Issue of the periodical within the volume

7

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

14

Pages from-to

2487-2501

UT code for WoS article

000334201400006

EID of the result in the Scopus database

2-s2.0-84897570219