Artículo
A new method to detect globular clusters with the S-PLUS survey
Buzzo, Maria Luisa; Cortesi, Arianna; Forbes, Duncan A.; Brodie, Jean P.; Couch, Warrick J.; Eduardo Barbosa, Carlos; De Brito Silva, Danielle; Coelho, Paula; Chies-Santos, Ana L.; Escudero, Carlos Gabriel
; Sesto, Leandro Alberto
; Menendez Delmestre, Karín; Gonçalves, Thiago S.; Bom, Clecio R.; Alvarez Candal, Alvaro; Smith Castelli, Analia Viviana
; Schoenell, William; Kanaan, Antonio; Ribeiro, Tiago; Mendes de Oliveira, Claudia Lucia
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Fecha de publicación:
02/2022
Editorial:
Wiley Blackwell Publishing, Inc
Revista:
Monthly Notices of the Royal Astronomical Society
ISSN:
0035-8711
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In this paper, we describe a new method to select globular cluster (GC) candidates, including galaxy subtraction with unsharp masking, template fitting techniques, and the inclusion of Gaia's proper motions. We report the use of the 12-band photometric system used by S-PLUS to determine radial velocities and stellar populations of GCs around nearby galaxies. Specifically, we assess the effectiveness of identifying GCs around nearby and massive galaxies (D < 20 Mpc and σ > 200 km s-1) in a multiband survey such as S-PLUS by using spectroscopically confirmed GCs and literature GC candidate lists around the bright central galaxy in the Fornax cluster, NGC 1399 (D = 19 Mpc), and the isolated lenticular galaxy NGC 3115 (D = 9.4 Mpc). Despite the shallow survey depth, which limits this work to r < 21.3 mag, we measure reliable photometry and perform robust SED fitting for a sample of 115 GCs around NGC 1399 and 42 GCs around NGC 3115, recovering radial velocities, ages, and metallicities for the GC populations.
Palabras clave:
GALAXIES: EVOLUTION
,
GALAXIES: STAR CLUSTERS: GENERAL
,
SURVEYS
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Articulos(IALP)
Articulos de INST.DE ASTROFISICA LA PLATA
Articulos de INST.DE ASTROFISICA LA PLATA
Citación
Buzzo, Maria Luisa; Cortesi, Arianna; Forbes, Duncan A.; Brodie, Jean P.; Couch, Warrick J.; et al.; A new method to detect globular clusters with the S-PLUS survey; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 510; 1; 2-2022; 1383-1392
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