Spectral Classification and Multicolour Photometry

1. Front Matter

   Pages i-xiv

   PDF

2. Classification of Slit Spectra

   1. Front Matter

      Pages 1-1

      PDF

   2. The Role of Classification of Slit Spectrograms

      • PH. C. Keenan

      Pages 3-12

   3. Spectroscopic Criteria for the Classification of Peculiar B-Type Stars with Colour-Spectrum Discrepancies

      • R. F. Garrison

      Pages 13-16

   4. Classification des Étoiles B À Partir des Raies de L’Hydrogéne—Comparaison AVEC D’Autres Classifications

      • R. Herman

      Pages 17-20

   5. Étude des Étoiles Supergéantes du Grand Nuage de Magellan, Leurs Magnitudes Absolues et Couleurs

      • CH. Fehrenbach

      Pages 21-26

   6. Quantitative Spectral Classification in the BCD System for LMC Supergiants

      • L. Divan

      Pages 27-28

   7. Photometric Investigation of IC 2944

      • A. Ardeberg, E. Maurice, J. Rickard

      Pages 29-29

   8. Spectral Classification Studies of Cepheids using a Small Telescope with an Image Tube Spectrograph

      • M. F. McCarthy

      Pages 30-32

   9. Spectral Classification of Some Long-Period and Semiregular Variables Near Times of Maximum

      • L. W. Simon, W. Buscombe

      Pages 33-35

   10. Some Notes on Stars Near K0

       • N. G. Roman

       Pages 36-41

   11. Spectroscopic Observations of the Sanduleak-Seggewiss Stars in NGC 6231

       • L. A. Milone

       Pages 42-42

   12. On the Precision of the MK Spectral Classification System

       • C. Jaschek, M. Jaschek

       Pages 43-51

   13. On the Accuracy of Spectral Classifications of Main-Sequence Stars

       • W. Gliese

       Pages 52-59

   14. Advantages and Limitations of Quantitative Spectral Classification

       • F. Spite

       Pages 60-61

3. Classification of Objective-Prism Spectra

   1. Front Matter

      Pages 63-63

      PDF

   2. Introductory Talk for Session on Objective Prism Spectral Classification

      • C. B. Stephenson

      Pages 65-69

   3. Two-Dimensional Classification of the HD Stars

      • N. Houk, A. Cowley

      Pages 70-76

   4. Early Results from the Michigan Southern-Hemisphere Spectral Survey

      • W. P. Bidelman, D. J. MacConnell, R. L. Frye

      Pages 77-79

   5. The Bonn Spectral Atlas: Part II

      • W. C. Seitter

      Pages 80-81

Dr J. Landi Dessy, Director of the Astronomical Observatory, Cordoba, Argentina, invited the International Astronomical Union to hold a Symposium in Cordoba in connection with the celebration of the Centennial of the Cordoba Observatory; the date of foundation is October 24, 1871. He proposed that the Symposium should deal with Spectral Classification and Multicolour Photometry as seven years had elapsed since the Symposium No. 24 in Saltsj6baden, and much development had occurred in the field. The invitation and the proposal were accepted by the IAU, and the Symposium was held in Villa Carlos Paz, near Cordoba, between October 18 and October 24, 1971. It was attended by about 50 scientists representing Argentina, Canada, Chile, Den­ mark, France, Germany, Italy, Mexico, Sweden, Switzerland, U.K., U.S.A., Vatican City State and Venezuela. The Symposium was divided into four sessions: 1. Classification of slit spectra, 2. Classification of objective-prism spectra, 3. Photometric classification, 4. Catalogues and documentation. It was decided not to include problems of calibration of absolute magnitudes and temperatures of stars but to refer this to a separate symposium. The contents of the present volume follow closely the programmes of the individual sessions of the Symposium. All the participants at the Symposium appreciated the excellent hospitality of their Argentinian hosts and the efficient help given by the staff ofthe Cordoba Observatory.

• Prism
• carbon
• classification
• cluster
• dispersion
• information
• milky way
• observatory
• photometry
• population
• spectra
• spectroscopy
• stellar
• telescope
• temperature

• Observatoire de Haute-Provence, Saint-Michel l’Observatoire, France

  Ch. Fehrenbach

• European Southern Observatory, Santiago de Chile, Chile

  B. E. Westerlund

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