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AGB stars of the Magellanic Clouds as seen within the "a photometric system

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PAUNZEN Ernst JANÍK Jan KURFÜRST Petr LIŠKA Jiří NETOPIL Martin SKARKA Marek ZEJDA Miloslav

Rok publikování 2020
Druh Článek ve sborníku
Konference Symposium S343 (Why Galaxies Care About AGB Stars: A Continuing Challenge through Cosmic Time)
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://ui.adsabs.harvard.edu/abs/2019IAUS..343..487P/abstract
Doi http://dx.doi.org/10.1017/S1743921318004957
Klíčová slova Magellanic Clouds; stars: AGB and post-AGB; techniques: photometric
Popis The a-index samples the flux of the 5200 angstrom region by comparing the flux at the center with the adjacent regions. The final intrinsic peculiarity index delta-a was defined as the difference between the individual a-values and the a-values of normal stars of the same colour (spectral type). Here we present, for the first time, a case study to detect and analyse Asymptotic Giant Branch (AGB) stars in the Magellanic Clouds. For this, we use our photometric survey of the Magellanic Clouds within the a-index. We find that AGB stars can be easily detected on the basis of their delta-a index in an efficient way.
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