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2005MNRAS.362.1208M - Mon. Not. R. Astron. Soc., 362, 1208-1218 (2005/October-1)
New near-infrared surface brightness fluctuation models.
MOUHCINE M., GONZALEZ R.A. and LIU M.C.
Abstract (from CDS):
The new models are compared with observed near-IR fluctuation absolute magnitudes and colours for a sample of Magellanic Cloud (MC) star clusters and Fornax cluster galaxies. For star clusters younger than ∼3Gyr, the predicted near-IR fluctuation properties are in satisfactory agreement with observed ones over a wide range of stellar population metallicities. However, for older star clusters, the agreement between the observed and predicted near-IR brightness fluctuations depends on how the surface brightness absolute magnitudes are estimated. The computed set of models are not able to match the observed near-IR fluctuation absolute magnitudes and colours simultaneously. We argue that the observed discrepancies between the predicted and observed properties of old MC superclusters are more likely due to observational reasons.
Abstract Copyright: 2005 RAS
Journal keyword(s): stars: AGB and post-AGB - galaxies: star clusters - galaxies: stellar content - infrared: galaxies
Simbad objects: 4
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