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The Globular Cluster Systems in the Coma Ellipticals. IV: WFPC2 Photometry for Five Giant Ellipticals

Autor: Harris, W. E., Kavelaars, J. J., Hanes, D. A., Pritchet, C. J., Baum, W. A.

We analyze photometric data in V and I for the globular cluster (GC) systems in five of the giant ellipticals in the Coma Cluster: NGC 4874, 4881, 4889, 4926, and IC 4051. We find that the GC luminosity functions are quite similar to one another, wit

Externí odkaz: http://arxiv.org/abs/0811.1437

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Globular Cluster Systems in Brightest Cluster Galaxies: Bimodal Metallicity Distributions and the Nature of the High-Luminosity Clusters

Autor: Harris, W. E., Whitmore, B. C., Karakla, D., Okon, W., Baum, W. A., Hanes, D. A., Kavelaars, J. J.

Publikováno v: Astrophys.J.636:90-94,2005

We present new (B,I) photometry for the globular cluster systems in eight Brightest Cluster Galaxies (BCGs), obtained with the ACS/WFC camera on the Hubble Space Telescope. In the very rich cluster systems that reside within these giant galaxies, we

Externí odkaz: http://arxiv.org/abs/astro-ph/0508195

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Hubble Space Telescope Observations of Globular Clusters in M31 II: Structural Parameters

Autor: Grillmair, C. J., Ajhar, E. A., Faber, S. M., Baum, W. A., Holtzman, J. A., Lauer, T. R., Lynds, C. R., O'Neil Jr., E. J.

We analyze post-refurbishment Hubble Space Telescope images of four globular clusters in M31. The ability to resolve stars to below the horizontal branch permits us to use star counts to extend the surface brightness profiles determined using apertur

Externí odkaz: http://arxiv.org/abs/astro-ph/9602047

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