A grid of synthetic spectra for the study of multiple populations on globular clusters

descriptionPublicationkeyboard_double_arrow_right Conference object , Other literature type 08 Oct 2021 English Publisher:ZenodoFunded by:ANR | POPSYCLE

Authors: Vinicius Branco; Paula Coelho; Ariane Lançon;

doi: 10.5281/zenodo.5555481 , 10.5281/zenodo.5555482

A grid of synthetic spectra for the study of multiple populations on globular clusters

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Abstract

{"references": ["POPSYCLE, \"Population Synthesis for Clusters and Galaxies (supported by ANR-19-CE31-0022, France)\"", "V. Branco and P. Coelho, BAAA, vol. 61C, pp. 85, 2020.", "V. Branco, M.S. thesis, IAG/USP, doi:10.11606/D.14.2020.tde-15122020-164651, 2020.", "P. Coelho, S. M. Percival, and M. Salaris, ApJ, vol. 734, no. 1, p. 72, 2011.", "R. Kurucz, \\ATLAS12, SYNTHE, ATLAS9, WIDTH9, et cetera,\" MSAIt, 2005.", "A. Gonneau et al., A&A, vol. 634, A133, 2020."]}

This poster explores an application of the chemical abundance variations characteristic of multiple population phenomena in Galactic globular clusters in the integrated spectra. In particular, we have confirmed the results by previous work and expanded the metallicity and wavelength coverage of that study. Now, we will calibrate the atomic opacities to an extensive empirical low-metallicity star sample, aiming at building a reliable synthetic stellar spectra grid.

Related Organizations

Observatory of Strasbourg
France

Keywords

Milky Way, Galactic Astrophysics, Stellar Populations, Stellar Astrophysics, Multiple Populations, Chemical Abundances, Extragalactic Astrophysics, Star Clusters, Stars, Globular Clusters

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