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The Globular Cluster System of M87

Cohen, Judith G. (1988) The Globular Cluster System of M87. In: The Harlow-Shapley Symposium on Globular Cluster Systems in Galaxies. International Astronomical Union Symposium (IAUS). No.126. Springer , Dordrecht, pp. 605-606. ISBN 9789027726650.

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Long exposures with the 4-Shooter at the Cassegrain focus of the 200-inch telescope at Palomar Observatory have been obtained for M87 (and two other giant ellipticals in Virgo). Ellipse fitting with a code specially developed to reject point sources has been carried out to determine the surface brightness in various bandpasses of the underlying galaxy. The color gradients in the galaxy are quite small over the entire regime between 2 and 350 arc-sec from the nucleus of M87. Also I find that there is no difference between the ellipse parameters (position angle and eccentricity) derived in the various colors, i.e. the isochromes and the isophotes coincide. Details of the study of the halo of M87 are described in a paper submitted to the Astronomical Journal.

Item Type:Book Section
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Cohen, Judith G.0000-0002-8039-4673
Additional Information:© IAU 1988.
Series Name:International Astronomical Union Symposium (IAUS)
Issue or Number:126
Record Number:CaltechAUTHORS:20190529-161904378
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95922
Deposited By: George Porter
Deposited On:31 May 2019 15:41
Last Modified:16 Nov 2021 17:16

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