Published October 8, 2021
| Version v1
Poster
Open
A grid of synthetic spectra for the study of multiple populations on globular clusters
Authors/Creators
- 1. Instituto de Astronomia, Geofísica e Ciências Atmosféricas
- 2. Observatoire astronomique de Strasbourg
Description
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.
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StarCluster_2021_poster_Vinicius_Branco.pdf
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Additional details
Funding
- Agence Nationale de la Recherche
- POPSYCLE - POPulation SYnthesis for CLusters and galaxies - matching the accuracy of modern spectrophotometric surveys via a fresh look at stellar physics ANR-19-CE31-0022
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.