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J-PLUS: Detecting and studying extragalactic globular clusters -- the case of NGC 1023 by Silva, Danielle de Brito; Coelho, Paula; Cortesi, Arianna; Bruzual, Gustavo; C., Gladis Magris; Chies-Santos, Ana L.; Hernandez-Jimenez, Jose A.; Ederoclite, Alessandro; Roman, Izaskun San; Varela, Jesús; Forbes, Duncan A.; Jiménez-Teja, Yolanda; Cenarro, Javier; Cristóbal-Hornillos, David; Hernández-Monteagudo, Carlos; López-Sanjuan, Carlos; Marín-Franch, Antonio; Moles, Mariano; Ramió, Héctor Vázquez; Dupke, Renato; 2, Laerte Sodré Jr.; Angulo, Raul E. is a scholarly article available to read on EtoBox.

What is J-PLUS: Detecting and studying extragalactic globular clusters -- the case of NGC 1023 about?

Extragalactic globular clusters (GCs) are key objects for studying the history of galaxies. The arrival of wide-field surveys such as the Javalambre Photometric Local Universe Survey (J-PLUS) offers new possibilities for the study of these systems. We perform the first study of GCs in J-PLUS to recover information about the history of NGC 1023 taking advantage of wide-field images and 12 filters. We develop the semiautomatic pipeline GCFinder that detects GC candidates in J-PLUS images and can also be adapted to similar surveys. We study the stellar population properties of a sub-sample of GC candidates using spectral energy distribution (SED) fitting. We find 523 GC candidates in NGC 1023, of which $\sim$300 are new. We identify subpopulations of GC candidates, where age and metallicity distributions have multiple peaks. By comparing our results with simulations, we report a possible broad age-metallicity relation, evidence that NGC 1023 experienced accretion events in the past. The dominating age peak is at $10^{10}$ yr. We report a correlation between masses and ages that suggests that massive GC candidates are more likely to survive the turbulent history of the host galaxy. Mod

Author

Silva, Danielle de Brito; Coelho, Paula; Cortesi, Arianna; Bruzual, Gustavo; C., Gladis Magris; Chies-Santos, Ana L.; Hernandez-Jimenez, Jose A.; Ederoclite, Alessandro; Roman, Izaskun San; Varela, Jesús; Forbes, Duncan A.; Jiménez-Teja, Yolanda; Cenarro, Javier; Cristóbal-Hornillos, David; Hernández-Monteagudo, Carlos; López-Sanjuan, Carlos; Marín-Franch, Antonio; Moles, Mariano; Ramió, Héctor Vázquez; Dupke, Renato; 2, Laerte Sodré Jr.; Angulo, Raul E.

Published

2021

Language

EN