Identification of a new relatively old star cluster in the small magellanic cloud

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We present results on the age and metallicity estimates of the astonishingly unstudied Small Magellanic Cloud (SMC) cluster (ESO51-SC09), from CCD BVI photometry obtained at the ESO NTT with the EMMI attached. ESO51-SC09 turns out to be a relatively small cluster (FWHM = 10± 1pc) located ∼4° northwa...

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Autor principal: Piatti, A.E (Autor, autor)
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: The American Astronomical Society 2012
Acceso en línea:Registro en Scopus
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Biblioteca Central Dr. Luis F. Leloir (FCEN) de Universidad de Buenos Aires
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100 1 |a Piatti, A.E.  |4 aut  |e autor 
245 1 0 |a Identification of a new relatively old star cluster in the small magellanic cloud 
260 |c 2012  |b The American Astronomical Society 
270 1 0 |m Piatti, A.E.; Instituto de Astronomía y Física Del Espacio, CC 67, Suc. 28, 1428 Ciudad de Buenos Aires, Argentina; email: andres@iafe.uba.ar 
506 |2 openaire  |e Política editorial  |f info:eu-repo/semantics/openAccess 
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504 |a Lauberts, A., (1982) ESO/Uppsala Survey of the ESO (B) Atlas 
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504 |a Piatti, A.E., Bica, E., (2012) MNRAS, , 0035-8711 
504 |a Piatti, A.E., Clariá, J.J., Bica, E., (2011) MNRAS, 417, p. 1559. , 10.1111/j.1365-2966.2011.18627.x 0035-8711 
504 |a Piatti, A.E., Santos Jr., J.F.C., Claria, J.J., Bica, E., Sarajedini, A., Geisler, D., Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud (2001) Monthly Notices of the Royal Astronomical Society, 325 (2), pp. 792-802. , DOI 10.1046/j.1365-8711.2001.04503.x 
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520 3 |a We present results on the age and metallicity estimates of the astonishingly unstudied Small Magellanic Cloud (SMC) cluster (ESO51-SC09), from CCD BVI photometry obtained at the ESO NTT with the EMMI attached. ESO51-SC09 turns out to be a relatively small cluster (FWHM = 10± 1pc) located ∼4° northward from the galaxy center. We report for the first time a mean cluster age of 7.0± 1.3Gyr and a mean cluster metallicity of [Fe/H]= -1.00± 0.15dex, concluding that ESO51-SC09 belongs to the group of the oldest SMC clusters. We found that the cluster is projected onto an older (age ∼10-13Gyr) and more metal-poor ([Fe/H]= -1.3± 0.2dex) dominant field stellar population, so that the cluster could have reached its current location because of its orbital motion. © 2012 The American Astronomical Society. All rights reserved.  |l eng 
593 |a Instituto de Astronomía y Física Del Espacio, CC 67, Suc. 28, 1428 Ciudad de Buenos Aires, Argentina 
690 1 0 |a GALAXIES: INDIVIDUAL (SMC) 
690 1 0 |a GALAXIES: STAR CLUSTERS: INDIVIDUAL (ESO 51-SC09) 
690 1 0 |a TECHNIQUES: PHOTOMETRIC 
773 0 |d 2012  |g v. 756  |k n. 2  |p Astrophys. J. Lett.  |x 20418205  |t Astrophysical Journal Letters 
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