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Quiescent prominences in the era of ALMA : simulated observations using 3D whole-prominence fine structure model

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Gunar_et_al_2016_ALMA_v2_2_final_emul.pdf (1.681Mb)
Date
20/12/2016
Author
Gunar, Stanislav
Heinzel, Petr
Mackay, Duncan Hendry
Anzer, Ulrich
Funder
The Royal Society of Edinburgh
Grant ID
N/A
Keywords
Sun: filaments, prominences
Sun: radio radiation
Radiative transfer
Methods: numerical
QB Astronomy
QC Physics
NDAS
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Abstract
We use the detailed 3D whole-prominence fine structure model to produce the first simulated high-resolution ALMA observations of a modeled quiescent solar prominence. The synthetic brightness temperature and optical thickness maps shown in the present paper are produced using a visualization method for the sub-millimeter/millimeter radio continua synthesis. We have obtained the simulated observations of both the prominence at the limb and the filament on the disk at wavelengths covering a broad range which encompasses the full potential of ALMA.We demonstrate here to what extent the small-scale and large-scale prominence and filament structures will be visible in the ALMA observations spanning both the optically thin and thick regimes. We analyze the relationship between the brightness and kinetic temperature of the prominence plasma. We also illustrate the opportunities ALMA will provide for studying the thermal structure of the prominence plasma from the cool prominence fine structure cores to the prominence-corona transition region. In addition, we show that the detailed 3D modeling of entire prominences with their numerous fine structures will be important for the correct interpretation of future ALMA prominence observations.
Citation
Gunar , S , Heinzel , P , Mackay , D H & Anzer , U 2016 , ' Quiescent prominences in the era of ALMA : simulated observations using 3D whole-prominence fine structure model ' , Astrophysical Journal , vol. 833 , no. 2 , 141 . https://doi.org/10.3847/1538-4357/833/2/141
Publication
Astrophysical Journal
Status
Peer reviewed
DOI
https://doi.org/10.3847/1538-4357/833/2/141
ISSN
0004-637X
Type
Journal article
Rights
© 2016, American Astronomical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at iopscience.iop.org / http://dx.doi.org/10.3847/1538-4357/833/2/141
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/9710

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