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Bright Star Clusters in the Antennae Analyzed with Evolutionary Synthesis

Published online by Cambridge University Press:  25 May 2016

Uta Fritze ,
V. Alvensleben  and
Oliver Kurth
Uta Fritze
Affiliation:
Universitäts-Sternwarte, Göttingen, Germany
V. Alvensleben
Affiliation:
Universitäts-Sternwarte, Göttingen, Germany
Oliver Kurth
Affiliation:
Universitäts-Sternwarte, Göttingen, Germany

Extract

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The Antennae galaxies (NGC 4038/39) are a pair of relatively nearby (D ~ 19 Mpc for H0 = 75) gas-rich spirals of comparable mass in the process of merging with extensive dynamical and evolutionary synthesis modeling available. With HST WFPC1 Whitmore & Schweizer (1995) (WS95) detected 738 bright Young Star Clusters (YSCs) around the Antennae. YSCs have been detected in many interacting and starbursting galaxies, but the YSC system in the Antennae is the most populous one, well defining an exponential Luminosity Function (LF) over more than 5 mag above the completeness limit. Problems arising from crowding of the YSCs on a bright and variable galaxy background and from the PSF of WFPC1 may cause blending of YSCs and an overestimation of their effective radii.

Type
Starbursts
Information
Symposium - International Astronomical Union , Volume 186: Galaxy Interactions at High and Low Redshift , 1999 , pp. 261 - 264
Copyright
Copyright © Kluwer 1999 

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