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A High Spatial Resolution Investigation of the Core of Some Dynamically Evolved Globular Clusters

Published online by Cambridge University Press:  04 August 2017

M. Aurière ,
J. P. Cordoni ,
O. Le Fèvre  and
A. Terzan
M. Aurière
Affiliation:
Observatoires du Pic-du-Midi et de Toulouse, 65200 Bagnères de Bigorre, France
J. P. Cordoni
Affiliation:
Laboratoire d'Astronomie, Université de Montpellier, France
O. Le Fèvre
Affiliation:
Observatoires du Pic-du-Midi et de Toulouse, 65200 Bagnères de Bigorre, France
A. Terzan
Affiliation:
Observatoire de Lyon, France

Extract

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We present a high spatial resolution photographic study of the core of some concentrated globular clusters (F.W.H.M. of averaged star intensity profiles reaches 0″.5 on the best plates). Good plates of M 79, M 53, M 3, M 5, M 13, M 92, NGC 6397, M 15, M 2 and M 30 were obtained (Aurière and Cordoni, 1983, Astron. Astrophys. Suppl. Ser. 52, 383 and references therein). The observations are mainly obtained at the 2 m and 1 m Cassegrain telescopes of Pic-du-Midi Observatory. The high spatial resolution of our plates enables us to achieve stellar photometry, at least for the bright stars, in these overcrowded regions. Surface photometry is also obtained.

Type
May 29: Observations of Globular Clusters
Information
Symposium - International Astronomical Union , Volume 113: Dynamic of Stars Clusters , 1985 , pp. 63 - 64
Copyright
Copyright © Reidel 1985