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Spectrophotometry in the Integrated Light of Multiple Populations in Globular Clusters by Branco, Vinicius; Lançon, Ariane; Coelho, Paula; Costa, Guglielmo; Dumont, Thibaut; Martins, Lumara; Prugniel, Philippe; Martins, Fabrice; Charbonnel, Corinne; Palacios, Ana is a scholarly article available to read on EtoBox.

What is Spectrophotometry in the Integrated Light of Multiple Populations in Globular Clusters about?

There is vast evidence from observations of multiple stellar populations (MPs) in globular clusters (GCs). To explore the issue theoretically, this work considers two subsolar metallicities, two ages, and two initial abundance patterns: a first population of standard $\alpha$-enhanced metal mixture stars and a second stellar population displaying C-N and Na-O anticorrelations chemical abundance patterns, along with an enhanced helium fraction. Analysing the predictions for these extreme compositions, we provide insights into the observability of not-resolved MPs into individual stars of GCs. We use colours and spectrophotometric indices measurable with modern facilities (e.g. Euclid, LSST, DES, JWST).

Author

Branco, Vinicius; Lançon, Ariane; Coelho, Paula; Costa, Guglielmo; Dumont, Thibaut; Martins, Lumara; Prugniel, Philippe; Martins, Fabrice; Charbonnel, Corinne; Palacios, Ana

Published

2025

Language

EN