A Study of Extinction and Star Formation in the Chamaeleon I Cloud with DENIS

  • L. Cambresy
Part of the Astrophysics and Space Science Library book series (ASSL, volume 230)


I present the first massive star count in the J band (1.25 μm) provided by DENIS in the Chamaeleon I dark cloud. These data are used to derive a high resolution map (2’) of an area of 1.5° x 3° around the centre of the cloud using an original processing which involves an adaptive grid for counting and a wavelet decomposition for noise filtering of the extinction map. The maximum extinction in this cloud is found to be 10 Av, using a normal law. Preliminary results on the study of the star formation improve our knowledge about the stellar population of the cloud. In particular, the K s luminosity function allows the estimation of the age of the stellar population of the cloud.


Star Formation Wavelet Decomposition Stellar Population Adaptive Grid Dark Cloud 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media Dordrecht 1998

Authors and Affiliations

  • L. Cambresy
    • 1
  1. 1.Observatoire de ParisDESPAMeudon CedexFrance

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