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Analysis of DENIS Data in ISOGAL Fields

  • C. Alard
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 230)

Abstract

We present here DENIS color magnitude diagrams for 3 different fields in the Milky Way. One field is situated in a window at only 2 degrees from the Galactic Center, the two others are in the Galactic plane at longitudes 1=15 and 1=25. We first show that it is possible to probe the extinction law along the line of sight using K vs. (J-K) color magnitude diagrams, and we also demonstrate that the shape of the giant branch is changing with Galactic latitude. For these fields ISO data from the ISOGAL project are also available. These ISOCAM data have been reprocessed using the CIA package (see acknowledgements), allowing reconstruction of a high quality mosaic image from the raw ISOCAM data. Magnitude and positions of stars are extracted from the ISOCAM mosaic image and associated to DENIS K band point sources. These DENIS K magnitudes are an important asset to our ISO 7 and 15 micron fluxes, especially in the case of AGB stars.

Keywords

Memory Effect Galactic Plane Mosaic Image Galactic Latitude Ghost Image 
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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References

  1. Alard, C. 1997, in preparationGoogle Scholar
  2. Frogel, J. and Withford, A.E., 1987, ApJ, 320,199ADSCrossRefGoogle Scholar
  3. Tiede, G., et al., 1995, AJ, 110, 2788ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1998

Authors and Affiliations

  • C. Alard
    • 1
  1. 1.Observatoire de Paris. and Institut d’Astrophysique de ParisDASGALFrance

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