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Chemical abundances in tidally disrupted globular clusters

  • D. Yong (a1), J. Meléndez (a2), K. Cunha (a3), A. I. Karakas (a1), J. E. Norris (a1) and V. V. Smith (a3)...

Abstract

We present abundance measurements in the tidally disrupted globular cluster NGC 6712. In this cluster, there are large star-to-star variations of the light elements C, N, O, F and Na. While such abundance variations are seen in every well-studied globular cluster, they are not found in field stars and indicate that clusters like NGC 6712 cannot provide many field stars and/or field stars do not form in environments with chemical-enrichment histories like those of NGC 6712. Preliminary analysis of NGC 5466, another tidally disrupted cluster, suggests little (if any) abundance variation for O and Na and the abundance ratios [X/Fe] are comparable to field stars at the same metallicity. Therefore, globular clusters like NGC 5466 may have been Galactic building blocks.

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Belokurov, V., Evans, N. W., Irwin, M. J., Hewett, P. C., & Wilkinson, M. I. 2006, ApJ (Letters), 637, L29
Carretta, E. 2006, AJ, 131, 1766
Cunha, K. & Smith, V. V. 2005, ApJ, 626, 425
Cunha, K., Smith, V. V., & Gibson, B. K. 2008, ApJ (Letters), 679, L17
Cunha, K., Smith, V. V., Lambert, D. L., & Hinkle, K. H. 2003, AJ, 126, 1305
de Marchi, G., Leibundgut, B., Paresce, F., & Pulone, L. 1999, A&A (Letters), 343, L9
Dinescu, D. I., Girard, T. M., & van Altena, W. F. 1999, AJ, 117, 1792
Gratton, R. G., Bragaglia, A., Carretta, E., Clementini, G., Desidera, S., Grundahl, F., & Lucatello, S. 2003, A&A, 408, 529
Gratton, R., Sneden, C., & Carretta, E. 2004, ARA&A, 42, 385
Karakas, A. I., Lee, H. Y., Lugaro, M., Görres, J., & Wiescher, M. 2008, ApJ, 676, 1254
Lada, C. J. & Lada, E. A. 2003, ARA&A, 41, 57
Meléndez, J. & Cohen, J. G. 2009, ApJ, 699, 2017
Odenkirchen, M., et al. , 2001, ApJ (Letters), 548, L165
Peebles, P. J. E. & Dicke, R. H. 1968, ApJ, 154, 891
Smith, G. H., Sneden, C., & Kraft, R. P. 2002, AJ, 123, 1502
Smith, V. V., Cunha, K., Ivans, I. I., Lattanzio, J. C., Campbell, S., & Hinkle, K. H. 2005, ApJ, 633, 392
Takahashi, K. & Portegies Zwart, S. F. 2000, ApJ, 535, 759
Yong, D., Grundahl, F., Johnson, J. A., & Asplund, M. 2008, ApJ, 684, 1159
Yong, D., Meléndez, J., Cunha, K., Karakas, A. I., Norris, J. E., & Smith, V. V. 2008, ApJ, 689, 1020
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Chemical abundances in tidally disrupted globular clusters

  • D. Yong (a1), J. Meléndez (a2), K. Cunha (a3), A. I. Karakas (a1), J. E. Norris (a1) and V. V. Smith (a3)...

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