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Infra-red Observations of Globular Cluster Giants

Published online by Cambridge University Press:  25 April 2016

A.L. Brooke
A.L. Brooke*
Affiliation:
Mount Stromlo Observatory, Australian National University, Canberra
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Extract

This paper presents a progress report on a programme of infra-red photoelectric photometry of the red giant sequences in some southern globular clusters. As measured in B and V these sequences are known to differ from cluster to cluster, at least one contributing factor being differential line-blanketing arising from variations in metal abundance. Observations in R and I should be substantially free of blanketing, and so enable us to eliminate this factor, clarifying the situation and making possible a more accurate transformation of the observations to the Mbol, log Tett plane. The difficulty of making this transformation has been a major obstacle in comparing observations and theory for cluster giants.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 1 , Issue 3 , February 1968 , pp. 83 - 84
Copyright
Copyright © Astronomical Society of Australia 1968

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References

1 Johnson, H.L., Mitchell, R.I., Iriarte, B., and Wisneiwski, W.Z., Comm. Lunar & Planet. Lab., 4, 99 (1966).Google Scholar
2 Searle, L., and Rodgers, A.W., Ap. J., 143, 809 (1966).CrossRefGoogle Scholar
3 Woolley, R. v.d. R., Alexander, J.B., Mather, Linda, and Epps, Elizabeth, Roy. Obs. Bull., 43 (1961).Google Scholar
4 Dickens, R.J. and Woolley, R. v.d. R., Roy. Obs. Bull., 128 (1967).Google Scholar
5 Sandage, A.R., Observatory, 84, 245 (1964).Google Scholar
6 Eggen, O.J. and Sandage, A.R., Ap. J., 140, 130 (1964).CrossRefGoogle Scholar
7 Johnson, H.L., Ap. J., 146, 613 (1966).CrossRefGoogle Scholar
8 Eggen, O.J., Ap. J. Suppl., 14, 341 (1967).CrossRefGoogle Scholar
9 Johnson, H.L., Ann. Rev. Astron. Astrophys., 4, 193 (1966).CrossRefGoogle Scholar
10 Johnson, H.L., Bol. Ton. Tac., 3, 305 (1964).Google Scholar
11 Demarque, P., and Geisler, J.E., Ap. J., 137, 1102 (1962).CrossRefGoogle Scholar