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Abstract:

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.

Registro:

Documento: Artículo
Título:Identification of a new relatively old star cluster in the small magellanic cloud
Autor:Piatti, A.E.
Filiación:Instituto de Astronomía y Física Del Espacio, CC 67, Suc. 28, 1428 Ciudad de Buenos Aires, Argentina
Palabras clave:galaxies: individual (SMC); galaxies: star clusters: individual (ESO 51-SC09); techniques: photometric
Año:2012
Volumen:756
Número:2
DOI: http://dx.doi.org/10.1088/2041-8205/756/2/L32
Título revista:Astrophysical Journal Letters
Título revista abreviado:Astrophys. J. Lett.
ISSN:20418205
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20418205_v756_n2_p_Piatti

Referencias:

  • Bica, E., Bonatto, C., Dutra, C.M., Santos, Jr.J.F.C., (2008) MNRAS, 389, p. 678. , 10.1111/j.1365-2966.2008.13612.x 0035-8711
  • Bica, E., Geisler, D., Dottori, H., Claria, J.J., Piatti, A.E., Santos, J.F.C., Ages and Metallicities of Star Clusters and Surrounding Fields in the Outer Disk of the Large Magellanic Cloud (1998) Astronomical Journal, 116 (2), pp. 723-737. , DOI 10.1086/300448
  • Bonatto, C., Bica, E., (2010) MNRAS, 403, p. 996. , 10.1111/j.1365-2966.2009.16177.x 0035-8711
  • Burstein, D., Heiles, C., (1982) AJ, 87, p. 1165. , 10.1086/113199 1548-9558
  • Crowl, H.H., Sarajedini, A., Piatti, A.E., (2001) AJ, 122 (1), p. 220. , 10.1086/321128 1538-3881 220
  • Dias, B., Coelho, P., Barbuy, B., Kerber, L., Idiart, T., (2010) A&A, 520, p. 85. , 10.1051/0004-6361/200912894 0004-6361
  • Dolphin, A.E., Walker, A.R., Hodge, P.W., (2001) ApJ, 562 (1), p. 303. , 10.1086/323873 0004-637X 303
  • Geisler, D., Bica, E., Dottori, H., Claria, J.J., Piatti, A.E., Santos, J.F.C., A Search for Old Star Clusters in the Large Magellanic Cloud (1997) Astronomical Journal, 114 (5), pp. 1920-1932. , DOI 10.1086/118614
  • Glatt, K., Grebel, E.K., Koch, A., (2010) A&A, 517, p. 50. , 10.1051/0004-6361/201014187 0004-6361
  • Glatt, K., Grebel, E.K., Sabbi, E., (2008) AJ, 136 (4), p. 1703. , 10.1088/0004-6256/136/4/1703 1538-3881 1703
  • Janes, K.A., Phelps, R.L., (1994) AJ, 108, p. 1773. , 10.1086/117192
  • Jannuzi, B.T., Claver, J., Valdes, F., (2003); Landolt, A., (1992) AJ, 104, p. 340. , 10.1086/116242
  • Lauberts, A., (1982) ESO/Uppsala Survey of the ESO (B) Atlas
  • Marigo, P., Girardi, L., Bressan, A., Groenewegen, M.A.T., Silva, L., Granato, G.L., Evolution of asymptotic giant branch stars: II. Optical to far-infrared isochrones with improved TP-AGB models (2008) Astronomy and Astrophysics, 482 (3), pp. 883-905. , DOI 10.1051/0004-6361:20078467
  • Mighell, K.J., Sarajedini, A., French, R.S., WFPC2 Observations of Star Clusters in the Magellanic Clouds. II. The Oldest Star Clusters in the Small Magellanic Cloud (1998) Astronomical Journal, 116 (5), pp. 2395-2414. , DOI 10.1086/300591
  • Piatti, A.E., (2011) MNRAS, 416, p. 89. , 10.1111/j.1745-3933.2011.01105.x 0035-8711
  • Piatti, A.E., (2011) MNRAS, 418, p. 69. , 10.1111/j.1745-3933.2011.01145.x 0035-8711
  • Piatti, A.E., Bica, E., (2012) MNRAS, , 0035-8711
  • Piatti, A.E., Clariá, J.J., Bica, E., (2011) MNRAS, 417, p. 1559. , 10.1111/j.1365-2966.2011.18627.x 0035-8711
  • 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
  • Schlegel, D.J., Finkbeiner, D.P., Davis, M., (1998) ApJ, 500 (2), p. 525. , 10.1086/305772 0004-637X 525
  • Stetson, P.B., Davis, L.E., Crabtree, D.R., (1990) CCDs in Astronomy, p. 289

Citas:

---------- APA ----------
(2012) . Identification of a new relatively old star cluster in the small magellanic cloud. Astrophysical Journal Letters, 756(2).
http://dx.doi.org/10.1088/2041-8205/756/2/L32
---------- CHICAGO ----------
Piatti, A.E. "Identification of a new relatively old star cluster in the small magellanic cloud" . Astrophysical Journal Letters 756, no. 2 (2012).
http://dx.doi.org/10.1088/2041-8205/756/2/L32
---------- MLA ----------
Piatti, A.E. "Identification of a new relatively old star cluster in the small magellanic cloud" . Astrophysical Journal Letters, vol. 756, no. 2, 2012.
http://dx.doi.org/10.1088/2041-8205/756/2/L32
---------- VANCOUVER ----------
Piatti, A.E. Identification of a new relatively old star cluster in the small magellanic cloud. Astrophys. J. Lett. 2012;756(2).
http://dx.doi.org/10.1088/2041-8205/756/2/L32