Late Stages of Stellar Evolution

1. Observations of Carbon Stars

   1. The Distribution of Carbon-Rich Circumstellar Envelopes in the Milky Way

      • Harley A. Thronson Jr., W. B. Latter, J. H. Black, J. Bally, Perry Hacking

      Pages 131-134

   2. IRAS LRS Spectra of Cool Carbon Stars: Clues of Carbon Star Evolution

      • Frits J. Willems

      Pages 135-138

   3. Millimeter Interferometer Mapping of HCN Toward CRL2688

      • John H. Bieging, Rieu Nguyen-Quang

      Pages 139-140

   4. CO Observations of IRAS Sources with SiC Emission Features

      • R. Arquilla, Sun Kwok, D. A. Leahy

      Pages 141-142

   5. High-Sensitivity HI Observations of the Circumstellar Envelopes of α Orionis and IRC+10216

      • P. F. Bowers, G. R. Knapp

      Pages 143-144

   6. CCD Observations of IRC +10 216

      • D. R. Crabtree, R. A. McLaren, C. A. Christian

      Pages 145-146

   7. Carbon Grains in the Circumstellar Envelope of IRC +10 216

      • P. G. Martin, C. Rogers

      Pages 147-148

   8. Complex Molecules in Carbon-Rich Circumstellar Envelopes

      • H. Olofsson

      Pages 149-163

   9. Time Variation of Millimeter-Wave Molecular Lines from CW Leo and o Ceti

      • M. J. Claussen, H. E. Matthews, R. Sahai, M. Morris

      Pages 165-165

   10. The Discovery of SO in Red Giant Circumstellar Envelopes

       • Raghvendra Sahai, John Howe

       Pages 167-168

   11. VLA Observations of NH3 and HC7N in the Egg Nebula (CRL2688)

       • Q. Rieu Nguyen, A. Winnberg, V. Bujarrabal

       Pages 169-170

   12. The Rate of Mass Return to the Galaxy by Evolved Stars

       • G. R. Knapp, E. M. Wilcots

       Pages 171-172

2. Evolutionary and Theoretical Considerations

   1. Front Matter

      Pages 173-173

      PDF

   2. Helium Shell Flashes and their Consequences

      • Icko Iben Jr.

      Pages 175-195

   3. The Magellanic Clouds as a Testing Ground for Theories of the Late Stages of Stellar Evolution

      • P. R. Wood

      Pages 197-208

   4. AGB Evolution in Shapley Constellation III

      • Jeremy Mould, Neill Reid

      Pages 209-212

   5. Convective Overshooting in Horizontal Branch Stars

      • C. Chiosi, G. Bertelli, A. Bressan

      Pages 213-233

   6. Asymptotic Giant Branch Evolution in the Magellanic Clouds

      • John C. Lattanzio

      Pages 235-238

   7. Mixing at the Carbon-Hydrogen Discontinuity during the Dredge-Up Phase in Low-Mass AGB Stars

      • D. E. Hollowell

      Pages 239-240

   8. Nucleosynthesis in the MS and S Stars

      • Verne V. Smith

      Pages 241-244

Over the last decade we have witnessed a rapid change in our understanding of the late stages of stellar evolution. A major stimulus to this has been the synthesis of observational data from different wavebands of the electromagnetic spectrum. The advent of infrared astronomy has led to the discovery of many luminous. late-type stars obscured by their circumstellar dust envelope. Sources discovered in the IRC and AFGL infrared sky surveys were followed up by radio observa­ tions, leading to the widespread use of the OH and CO molecules as probes of the circumstellar envelopes. Advances in the technique of aperture synthesis have made possible observations with unprecedent resolving power, both in spectral-line and continuum. The success of the recent IRAS sky survey, with the detection of over 250,000 sources, brings the promise of even more exciting years ahead. This area of astronomical research is also blessed with the close collaboration between theorists and observers. New ideas are constantly being quantitatively tested by new data. Theoretical predictions are eagerly used as guides for further observations. This conference was initiated with the following objective: bring together workers in optical, infrared, radio and theoretical astronomy and let them confront each other. Based on the post-conference res­ ponses we received, many of the participants have indeed found this Workshop a stimulating experience. The Workshop on the Late Stages of Stellar Evolution was held from 2-5 June 1986 in Calgary, Canada.

• Bulge
• CCD
• Galaxy
• stars
• stellar

• University of Calgary, Canada

  S. Kwok

• Kapteyn Astronomical Institute, Groningen, The Netherlands

  S. R. Pottasch

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