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Nucleosynthesis in the Stellar Systems ω Centauri and M22

Published online by Cambridge University Press:  02 January 2013

G. S. Da Costa  and
A. F. Marino
G. S. Da Costa*
Affiliation:
Research School of Astronomy & Astrophysics, Australian National University, Mt Stromlo Observatory, via Cotter Rd, Weston, ACT 2611, Australia
A. F. Marino
Affiliation:
Dipartimento di Astronomia, Università di Padova, vicolo dell'Osservatorio 2, I-35122 Padova, Italy
*
CCorresponding author. Email: gdc@mso.anu.edu.au
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Abstract

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The stellar system ω Centauri (ω Cen) is well known for the large range in elemental abundances among its member stars. Recent work has indicated that the globular cluster M22 (NGC 6656) also possesses an internal abundance range, albeit substantially smallerthan that in ω Cen. Here we compare, as a function of [Fe/H], element-to-iron ratios in the two systems for a number of different elements using data from abundance analyses of red giant branch stars. It appears that the nucleosynthetic enrichment processes were very similar in these two systems despite the substantial difference in total mass.

Keywords

globular clusters: generalglobular clusters: individual (M22, ω Cen)stars: abundances
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 28 , Issue 1 , 2011 , pp. 28 - 37
Copyright
Copyright © Astronomical Society of Australia 2011

References

Anderson, J., Piotto, G., King, I. R., Bedin, L. R. & Guhathakurta, P., 2009, ApJ, 697, L58CrossRefGoogle Scholar
Bedin, L. R., Piotto, G., Anderson, J., Cassisi, S., King, I. R., Momany, Y. & Carraro, G., 2004, ApJ, 605, L125CrossRefGoogle Scholar
Bekki, K. & Freeman, K. C., 2003, MNRAS, 346, L11CrossRefGoogle Scholar
Bekki, K. & Norris, J. E., 2006, ApJ, 637, 109CrossRefGoogle Scholar
Bellazzini, M., Ibata, R. A., Chapman, S. C., Mackey, A. D., Monaco, L., Irwin, M. J., Martin, N. F., Lewis, G. F. & Dalessandro, E., 2008, AJ, 136, 1147CrossRefGoogle Scholar
Bellini, A., Bedin, L. R., Piotto, G., Milone, A. P., Marino, A. F. & Villanova, S., 2010, AJ, 140, 631CrossRefGoogle Scholar
Busso, M., Gallino, R. & Wasserburg, G. J., 1999, ARA&A, 37, 239Google Scholar
Cannon, R. D. & Stobie, R. S., 1973, MNRAS, 162, 207CrossRefGoogle Scholar
Carollo, D., Beers, T. C., Lee, Y. S., Chiba, M., Norris, J. E., Wilhelm, R., Sivarani, T., Marstellar, B., Munn, J. A., Bailer-Jones, C. A. L., Fiorentin, P. R. & York, D. G., 2007, Nature,450, 1020CrossRefGoogle Scholar
Carretta, E., Bragaglia, A., Gratton, R. G., Lucatello, S., Catanzaro, G., Leone, F., Bellazzini, M., Claudi, R., D'Orazi, V., Momany, Y., Ortolani, S., Pancino, E., Piotto, G., Recio-Blanco, A. & Sabbi, E., 2009a, A&A, 505, 117Google Scholar
Carretta, E., Bragaglia, A., Gratton, R., D'Orazi, V. & Lucatello, S., 2009b, A&A, 508, 695Google Scholar
Carretta, E., Bragaglia, A., Gratton, R. G., Recio-Blanco, A., Lucatello, S., D'Orazi, V. & Cassisi, S., 2010a, A&A, 516, 55Google Scholar
Carretta, E., Bragaglia, E., Gratton, R. G., Lucatello, S., Bellazzini, M., Catanzaro, G., Leone, F., Momany, Y., Piotto, G. & D'Orazi, V., 2010b, ApJ, 714, L7CrossRefGoogle Scholar
Carretta, E., Bragaglia, E., Gratton, R. G., Lucatello, S., Bellazzini, M., Catanzaro, G., Leone, F., Momany, Y., Piotto, G. & D'Orazi, V., 2010c, A&A, inpress (arXiv:1006.5866v1)Google Scholar
Carretta, E., Gratton, R. G., Lucatello, S., Bragaglia, A., Catanzaro, G., Leone, F., Momany, Y., D'Orazi, V., Cassisi, S., D'Antona, F. & Ortolani, S., 2010d, ApJ, in press (arXiv:1007.5301v1)Google Scholar
Da Costa, G. S., Held, E. V., Saviane, I. & Gullieuszik, M., 2009, ApJ, 705, 1481CrossRefGoogle Scholar
D'Antona, F. & Ventura, P., 2007, MNRAS, 379, 1431CrossRefGoogle Scholar
D'Antona, F., Bellazzini, M., Caloi, V., Fusi-Pecci, F., Galleti, S. & Rood, R. T., 2005, ApJ, 631, 868CrossRefGoogle Scholar
Decressin, T., Meynert, G., Charbonnel, C., Prantzos, N. & Ekström, S., 2007, A&A, 464, 1029Google Scholar
Denisenkov, P. A. & Denisenkova, S. N., 1990, Sov. Astron. Lett., 16, 275Google Scholar
Dinescu, D. I., Girard, T. M. & van Altena, W. F., 1999, AJ, 117, 1792CrossRefGoogle Scholar
Ferraro, F. R., Dalessandro, E., Mucciarelli, A., Beccari, G., Rich, R. M., Origlia, L., Lanzoni, B., Rood, R. T., Valenti, E., Bellazzini, M., Ransom, S. M. & Cocozza, G., 2009, Nature, 462, 483CrossRefGoogle Scholar
Freeman, K. C., 1993, The Globular Cluster—Galaxy Connection(ASP Conf. Ser. 48), Eds. Smith, G. H. & Brodie, J. P. (San Francisco, CA: ASP), 608Google Scholar
Freeman, K. C. & Rodgers, A. W., 1975, ApJ, 201, L71CrossRefGoogle Scholar
Geyer, E. H., 1967, Z. fr Ap., 66, 16Google Scholar
Gnedin, O. Y. & Ostriker, J. P., 1997, ApJ, 474, 223CrossRefGoogle Scholar
Gratton, R., Sneden, C. & Carretta, E., 2004, ARAA, 42, 385CrossRefGoogle Scholar
Harris, W. E., 1996, AJ, 112, 1487CrossRefGoogle Scholar
Ivans, I., Sneden, C., Kraft, R. P., Suntzeff, N. B., Smith, V. V., Langer, G. E. & Fulbright, J. P., 1999, AJ, 118, 1273CrossRefGoogle Scholar
Johnson, C. I., Pilachowski, C. A., Rich, M. R. & Fulbright, J. P., 2009, ApJ, 698, 2048CrossRefGoogle Scholar
Johnson, C. I. & Pilachowski, C. A., 2010, ApJ, in press (arXiv:1008.2231v1)Google Scholar
Kraft, R. P. & Ivans, I. I., 2003, PASP, 115, 143CrossRefGoogle Scholar
Langer, G. E., Hoffman, R. & Sneden, C., 1993, PASP, 105, 301CrossRefGoogle Scholar
Lanzoni, B., Ferraro, F. R., Dalessandro, E., Mucciarelli, A., Beccari, G., Miocchi, P., Bellazzini, M., Rich, R. M., Origlia, L., Valenti, E., Rood, R. T. & Ransom, S. M., 2010, ApJ, 717, 653CrossRefGoogle Scholar
Lloyd-Evans, T., 1986, South Afr. Astron. Obs. Circ., 10, 1Google Scholar
Marino, A. F., Villanova, S., Piotto, G., Milone, A. P., Momany, Y., Bedin, L. R. & Medling, A. M., 2008, A&A, 490, 625Google Scholar
Marino, A. F., Milone, A. P., Piotto, G., Villanova, S., Bedin, L. R., Bellini, A. & Renzini, A., 2009, A&A, 505, 1099Google Scholar
Mayor, M., Duquennoy, A., Udry, S., Andersen, J. & Nordstrom, B., 1996, The Origins, Evolutions, and Densities of Binary Stars in Clusters (ASP Conf. Ser. 90), Eds. Milone, E. F. & Mermilliod, J.-C. (San Francisco, CA: ASP), 190Google Scholar
Mayor, M., Meylan, G., Udry, S., Duquennoy, A., Andersen, J., Nordstrom, B., Imbert, M., Maurice, E., Prevot, L., Ardeberg, A. & Lindgren, H., 1997, AJ, 114, 1087CrossRefGoogle Scholar
McWilliam, A., 1997, ARA&A, 35, 503Google Scholar
Meylan, G., Mayor, M., Duquennoy, A. & Dubath, P., 1995, A&A, 303, 761Google Scholar
Milone, A. P., Piotto, G., King, I. R., Bedin, L. R., Anderson, J., Marino, A. F., Momany, Y., Malavolta, L. & Villanova, S., 2010,ApJ, 709, 1183CrossRefGoogle Scholar
Norris, J. E., 2004, ApJ, 612, L25CrossRefGoogle Scholar
Norris, J. E. & Da Costa, G. S., 1995a, ApJ, 441, L81CrossRefGoogle Scholar
Norris, J. E. & Da Costa, G. S., 1995b, ApJ, 447, 680CrossRefGoogle Scholar
Norris, J. E., Da Costa, G. S. & Tingay, S. J., 1996a, ApJS, 99, 637CrossRefGoogle Scholar
Norris, J. & Freeman, K. C., 1983, ApJ, 266, 130CrossRefGoogle Scholar
Norris, J. E., Freeman, K. C. & Mighell, K. J., 1996b, ApJ, 462, 241CrossRefGoogle Scholar
Otsuki, K., Honda, S., Aoki, W., Kajino, T. & Matthews, G. J., 2006, ApJ, 641, L117CrossRefGoogle Scholar
Pancino, E., Pasquini, L., Hill, V., Ferraro, F. R. & Bellazzini, M., 2002, ApJ, 568, L101CrossRefGoogle Scholar
Piotto, G., 2009, The Ages of Stars, IAU Symposium 258, Eds. Mamajek, E. E. Soderblom, D. R. & Wyse, R. F. G. (Cambridge: CUP), 233Google Scholar
Piotto, G., Bedin, L. R., Anderson, J., King, I. R., Cassisi, S., Milone, A. P., Villanova, S., Pietrinferni, A. & Renzini, A., 2007, ApJ, 661, L53CrossRefGoogle Scholar
Piotto, G., Villanova, S., Bedin, L. R., Gratton, R., Cassisi, S., Momany, Y., Recio-Blanco, A., Lucatello, S., Anderson, J., King, I. R., Pietrinferni, A. & Carraro, G., 2005, ApJ, 621, 777CrossRefGoogle Scholar
Renzini, A., 2008, MNRAS, 391, 354CrossRefGoogle Scholar
Romano, D., Matteucci, F., Tosi, M., Pancino, E., Bellazzini, M., Ferraro, F. R., Limongi, M. & Sollima, A., 2007, MNRAS, 376, 405CrossRefGoogle Scholar
Romano, D., Tosi, M., Cignoni, M., Matteucci, F., Pancino, E. & Bellazzini, M., 2010, MNRAS, 401, 2490CrossRefGoogle Scholar
Sarajedini, A. & Layden, A. C., 1995, AJ, 109, 1086CrossRefGoogle Scholar
Smith, G. H., 2008, PASP, 120, 952CrossRefGoogle Scholar
Smith, V. V., Suntzeff, N. B., Cunha, K., Gallino, R., Busso, M., Lambert, D. L. & Straniero, O., 2000, AJ, 119, 1239CrossRefGoogle Scholar
Sneden, C., Kraft, R. P., Shetrone, M. D., Smith, G. H., Langer, G. E. & Prosser, C. F., 1997, AJ, 114, 1964CrossRefGoogle Scholar
Ventura, P. & D'Antona, F., 2008, MNRAS, 385, 2034CrossRefGoogle Scholar
Woolley, R., 1966, Royal Obs. Ann., 2, 1Google Scholar
van de Ven, G., van den Bosch, R. C. E. Verolme, E. K. & de Zeeuw, P. T., 2006, A&A, 445, 513Google Scholar
Yong, D., Grundahl, F., Nissen, P. E., Jensen, H. R. & Lambert, D. L., 2005, A&A, 438, 875Google Scholar
Yong, D. & Grundahl, F., 2008, ApJ, 672, L29CrossRefGoogle Scholar