Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-23T19:58:28.141Z Has data issue: false hasContentIssue false
  • English
  • Français

Inhomogeneities in Globular Clusters

Published online by Cambridge University Press:  25 April 2016

Mun-Suk Chun
Mun-Suk Chun*
Affiliation:
Department of Astronomy and Atmospheric Science, Yonsei University, Seoul, Korea
Get access Rights & Permissions [Opens in a new window]

Abstract

Inhomogeneities in globular clusters are reviewed with the observational evidence for chemical abundance variations from star to star in individual clusters and the large-scale structural variation of clusters. The reality of the radial colour gradient is tested in 47 Tuc (NGC 104). The result shows that the observed radial colour gradient comes from the integration of the calculated colours of individual stars. The cause of this radial colour variation is the result of the concentration of evolved stars and the reddening of the main sequence in the central region. We propose that the CNO abundance gradient in the early stage of a cluster’s formation is the interpretation of the observed radial colour gradient.

Type
Invited
Information
Publications of the Astronomical Society of Australia , Volume 9 , Issue 1 , 1991 , pp. 37 - 40
Copyright
Copyright © Astronomical Society of Australia 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Angeletti, L., Capuzzo-Dolcetta, R. and Giannone, P., 1981a, Astron. Astrophys., 96, 254.Google Scholar
Angeletti, L. 1981b, Astron. Astrophys., 98, 344.Google Scholar
Auriere, M. and Ortolani, S., 1988, Astron. Astrophys., 204, 106.Google Scholar
Bailyn, C. D., Grindlay, I. E., Conn, H., Lugger, P. H., Stetson, P.B. and Hesser, J. E., 1989, Astron. J., 98, 8.CrossRefGoogle Scholar
Bell, R. A., Hesser, J. E. and Cannon, R. D., 1983, Astrophys. J., 269, 580.CrossRefGoogle Scholar
Bendinelli, O., Cacciari, C., Panneggiarli, G. and Zavatti, F., 1983, Astrophys. Space Sci., 95, 393.CrossRefGoogle Scholar
Bhatt, H.C., 1988, Mon. Not. R. Astr. Soc., 233, 867.CrossRefGoogle Scholar
Briley, M. M., Beli, R. A., Smith, G. H. and Hesser, J. E., 1988, DAO preprint.Google Scholar
Buonanno, R., Castellani, V., Corsi, C. E. and Fusi Pecci, F., 1981, Astrophys. Space Sci., 101, 1.Google Scholar
Chun, M. S. and Freeman, K. C., 1979, Astrophys. J., 227, 93.CrossRefGoogle Scholar
Cohen, J. G. and Bell, R. A., 1986, Astrophys. J., 305, 698.CrossRefGoogle Scholar
Cottrell, P. L. and Da Costa, G. S., 1981, Astrophys. J. Lett., 245, L79.CrossRefGoogle Scholar
Da Costa, G. S., 1979, Carnegie Yearbook, 78, 734 (Peterson 1986).Google Scholar
Da Costa, G. S. and Demarque, P., 1982, Astrophys. J., 259, 193.CrossRefGoogle Scholar
Gascoigne, S. C. B. and Burr, E. J., 1956, Mon. Not. R. Astr. Soc., 116, 570.CrossRefGoogle Scholar
Hanes, D. A. and Brodie, J. P., 1985, Mon. Not. R. Astr. Soc., 214, 491.CrossRefGoogle Scholar
Hartwick, F. D. A. and McClure, R. D., 1980, Astrophys. J., 235, 470.CrossRefGoogle Scholar
Hesser, J. E., Harris, W. E., van den Berg, D. A., Allwright, J. W. B., Shott, P. and Stetson, P. E., 1987, Publ. Astron. Soc. Pac., 99, 739.CrossRefGoogle Scholar
Hesser, J. E., Haitwick, F. D. A. and McClure, R. D., 1976, Astrophys. J., 207, L113.CrossRefGoogle Scholar
Iben, I., 1980, Globular Clusters, ed. Hanes, D. and Madore, B. (CUP), p. 125.Google Scholar
Icke, V. and Alcaino, G., 1988, Astron. Astrophys., 204, 115.Google Scholar
King, I. R., 1966, Astron. J., 71, 276.CrossRefGoogle Scholar
Lloyd Evans, T., 1974, Mon. Not. R. Astr. Soc., 167, 393.CrossRefGoogle Scholar
Mallia, E. A., 1978, Astron. Astrophys., 70, 115.Google Scholar
Mallia, E. A. and Pagel, B. E. J., 1981, Mon. Not. R. Astr. Soc., 194, 421.CrossRefGoogle Scholar
McClure, R. D. and Noms, J., 1977, Astrophys. J. Lett., 217, L101.CrossRefGoogle Scholar
Norris, J., 1981, Astrophys. J., 248, 177.CrossRefGoogle Scholar
Norris, J. and Freeman, K. C., 1979, Astrophys. J. Lett., 230, L179.CrossRefGoogle Scholar
Norris, J. and Freeman, K. C., 1983, Astrophys. J., 266, 130.CrossRefGoogle Scholar
Norris, J. and Zinn, R., 1977, Astrophys. J., 215, 74.CrossRefGoogle Scholar
Norris, J., Cottrell, P. L., Freeman, K. C. and Da Costa, G. S., 1981, Astrophys. J., 244, 205.CrossRefGoogle Scholar
Oort, J. H. and van Herk, G., 1959, Bull. Astron. Inst. Netherlands, No.491, 299.Google Scholar
Pastoriza, M. G., Bica, E. L. D., Copetti, M. V. P. and Dottori, H.A., 1986, Astrophys. Space Sci., 119, 279.CrossRefGoogle Scholar
Peterson, C. J., 1986, Publ. Astron. Soc. Pac., 98, 192.CrossRefGoogle Scholar
Piotto, G., King, I. R. and Djorgovski, S., 1988, Astron. J., 96, 1918.CrossRefGoogle Scholar
Renzini, A., 1977, in ‘Advanced Stages in Stellar Evolution’ 7th course of the Swiss Society of Astronomy and Astrophysics, Saas-Fee, ed. Bouvier, P. and Maeder, A. (Geneva Observatory Publ.).Google Scholar
Scaria, K. K., 1982, Bull. Astron. Soc. India, 10, 340.Google Scholar
Smith, G. H., 1986, Astrophys. J., 306, 565.CrossRefGoogle Scholar
Smith, G. H., 1989, Publ. Astron. Soc. Pac., 101, 1083.CrossRefGoogle Scholar
Smith, G. H. and Bell, R. A., 1986, Astron. J., 91, 1121.CrossRefGoogle Scholar
Smith, G. H. and Norris, J., 1982a, Astrophys. J., 254, 149.CrossRefGoogle Scholar
Smith, G. H. and Norris, J., 1982b, Astrophys. J., 254, 594.CrossRefGoogle Scholar
Smith, G. H. and Norris, J., 1983, Astrophys. J., 264, 215.CrossRefGoogle Scholar
Smith, G. H. and Penny, A. J., 1989, Astron. J., 97, 1397.CrossRefGoogle Scholar
Smith, H. A., 1979, Astrophys. J., 84, 176.Google Scholar
Smith, J. A. and Demarque, P., 1980, Astron. Astrophys., 92, 163.Google Scholar
Smith, V. V. and Suntzeff, N.B., 1989, Astron. J., 97, 1699.CrossRefGoogle Scholar
Stebbins, J., 1950, Mon. Not. R. Astr. Soc., 110, 416.Google Scholar
Sweigart, A. V. and Mengel, J. G., 1979, Astrophys. J., 229, 624.CrossRefGoogle Scholar
Trefzger, C. F., Carbon, D. F., Langer, G. E. Suntzeff, N.B., 1983, Astrophys. J., 266, 144.CrossRefGoogle Scholar
Wolf, N. J., 1964, Astrophys. J., 139, 1081.CrossRefGoogle Scholar
Woolley, R.v.d.R. and Dickens, R. J., 1967, Roy. Obs. Bull., No. 128.Google Scholar
Zinn, R., 1973, Astrophys. J., 182, 183.CrossRefGoogle Scholar
Zinn, R., 1981, Astrophys. J., 251, 52.CrossRefGoogle Scholar