MgH lines in the spectrum of Arcturus
Iryna Kushniruk, Yakiv Pavlenko, Bogdan Kaminskiy

TL;DR
This study computed synthetic MgH spectra for Arcturus to determine its atmospheric parameters by matching observed and modeled spectra, providing insights into stellar atmosphere modeling.
Contribution
The paper presents a method to derive stellar atmospheric parameters by synthetic spectrum fitting specifically for MgH lines in Arcturus.
Findings
Atmospheric parameters of Arcturus were determined as log g=1.5 and Teff=4300 K.
The derived parameters agree with previous studies.
The method improves the accuracy of stellar atmosphere characterization.
Abstract
The synthetic spectra of MgH lines was computed for the grid of the model atmospheres and compared with observed spectrum of Arcturus. The parameters of the atmosphere of Arcturus log g=1.5 for Teff=4300 K were found by using the minimization procedure of differences between observed and computed spectra and compared our results of other studies.
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Taxonomy
TopicsSolar and Space Plasma Dynamics · Geophysics and Gravity Measurements · Stellar, planetary, and galactic studies
