Observations of Active Nuclei at Calar Alto Observatory

  • K. Birkle
  • P. Rafanelli
  • U. Thiele
Part of the Astrophysics and Space Science Library book series (ASSL, volume 121)


CCD images and photographic spectra of Seyfert galaxies have been recently obtained by the authors at the Cassegrain focus of the 2.2m, F/8 telescope of the Calar Alto Observatory (D.S.A.Z.). The main purposes of the observing programme were essentially three:
  1. 1)

    To obtain medium resolution spectra and high quality images of interacting active nuclei in order to study in detail their physical and morphological features and to verify whether nuclear activity can be related to some external disturbances.

  2. 2)

    To monitor some previously observed Seyfert-1 galaxies in order to detect changes in their emission line spectra.

  3. 3)

    To verify the spectral features of some objects remarkable within the Seyfert class for their peculiar line profiles and/or intensity line ratios.



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Copyright information

© Springer Science+Business Media Dordrecht 1986

Authors and Affiliations

  • K. Birkle
    • 1
  • P. Rafanelli
    • 2
  • U. Thiele
    • 1
  1. 1.Max-Planck-Institut für AstronomieHeidelberg (DSAZ)Germany
  2. 2.Asiago Astrophysical ObservatoryUniversity of PadovaItaly

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