NON-TYPICAL SPECTRAL LINE SHAPES FROM LABORATORY PLASMA OF INTEREST FOR ASTROPHYSICS
Nikola Cvetanović, Bratislav M. Obradović.
Publication
BOOK OF ABSTRACTS AND CONTRIBUTED PAPERS - International scientific conference: Meeting on new trends in Astronomy & Earth Observation, Page 47, https://doi.org/10.69646/aob241215
BOOK OF ABSTRACTS AND CONTRIBUTED PAPERS - International scientific conference: Meeting on new trends in Astronomy & Earth Observation, November 25-29, 2024, Belgrade, Serbia, Edited by Vladimir A. Srećković, Aleksandra Kolarski, Milica Langović, Filip Arnaut and Nikola Veselinović
Published by: Scientific Society Isaac Newton Belgrade
Published: 15. 12. 2024.
Abstract
Abstract:  Spectral  line  shapes  are  a  powerful  diagnostic  tool for investigating  both  laboratory  and  astrophysical  plasma. Typical applications include determination of plasma parameters and  the strength of the electric or magnetic field. However, in certain cases atypical line shapes occur that cannot be explained using standard models for the line-profile analysis e.g. Doppler or  pressure  line broadening.  To  perform  the  line  analysis  in such  cases,  new  and advanced  fitting  procedures  must  be developed, often paired with imaging and backed up by wider theoretical framework to take in to account the specific processes at play. The physical mechanisms that cause such line-shape effects in laboratory plasma are often similar or analogous  to  those  in astrophysical plasma. Therefore, the methods can be seen as a link  between  the  laboratory  plasma  formed  in  controlled experiments and the investigation of astrophysical objects. - FULL TEXT available in PDF.
 
                        
                             
                        
                            
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