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Cool Stars with Excesses of Heavy Elements : Proceedings of the Strasbourg Observatory Colloquium Held at Strasbourg, France, July 3-6, 1984

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概要 The idea of this colloquium was first put forward by Prof. P. Keenan when he visited the Centre de Donnees Stellaires, in September 1982. Dr. A. Florsch, Director of the Strasbourg Observatory, kindly... accepted to field it at Strasbourg. The scientific organization of the colloquium was in charge of a Committee chaired by Prof. P.C. Keenan and composed by M. Feast, A. Florsch, B. Gustafsson, D. Harmer, M. Jaschek (secretary), R. McClure, A. Maeder, W. Straizys and T. Tsuji. The members of the Committee helped to translate the idea into a very successful meeting. It should be added that this colloquium was the first meeting devoted to late-type peculiar stars. The program was organized by sessions devoted to the following topics : taxonomy, photometric properties, distribution and space motions, chemical com position, model atmosphere, binary systems and evolutionary tracks. Each session started with a review paper, followed by contributed papers presented as posters. The different sessions were chaired by W. Bidelman, R. Cayrel, Ch. Cowley, A. Heck, H.R. Johnson, J.P. Kaufmann and T. Tsuji, who did an excellent job. The President of the "Louis Pasteur University of Strasbourg", Prof. H. Duranton, welcomed the participants to the University where the sessions were held; Dr. A. Florsch welcomed the participation on be.balf of the French astrono mical community and Prof. P. Keenan spoke on behalf on the Scientific Organizing Committee.続きを見る
目次 I. Spectral Characteristics that Define the Groups of Peculiar Cool Stars
1. Taxonomy of late-type giants (Review paper)
2. Spectral classification and the relations between peculiar giants
3. The infrared spectra of red variables: II. The SC and CS stars
4. Spectrophotometric characteristics of barium stars
5. Identification of photographic infrared spectral region in carbon stars
6. Peculiar cool stars in planetary nebulae - The spectrum of FG Sge
7. The discovery and frequency of barium stars
8. The IUE low-dispersion spectra reference atlas
9. Ultraviolet spectra of N, R and S stars
II. Photometric Properties of the Peculiar Stars. Light Curves of Variables
10. Photometric properties of peculiar red giants. (Review Paper)
11. Absolute spectrophotometry of F-, G-, K-, and M-type stars
12. Calibrations of photometric indices on new temperature scales and Problem of spectral classification in M and C stars
13. A new photometric system for monitoring carbon star variability
14. Some properties of S Mira variables
III. Distribution and Space Motions of the Peculiar Stars. Membership in Clusters and Magellanic Clouds
15. The distribution and motions of peculiar red giants (Review paper)
16. The Catalogue of stellar groups. II. Cool peculiar stars
17. Kinematics of late-type giants
18. Kinematics and spatial density of main sequence SMR stars
19. Some statistics on barium stars
20. Carbon stars and the center of our Galaxy
21. The evolutionary connection between S and 163 C stars: evidence from star clusters and the Magellanic Clouds
22. Kinematics of carbon stars in the Large Magellanic Cloud
23. Carbon and M stars in NGC 205
24. Carbon stars in the Carina dwarf galaxy
25. Carbon stars and S stars near open clusters -a statistical approach
26. The absolute magnitude of barium stars
IV. Chemical Compositions of the Several Varieties of Peculiar Stars. Comparisons
27. The chemical composition of cool stars: I - The barium stars. (Review paper)
28. Rare earth patterns in red giants and blue dwarfs
29. Statistical equilibrium of Fe I/Fe II in cool stars
30. Chemical composition of barium stars
31. Abundance analysis of cool carbon stars
32. Calcium chloride in the IUE 249 spectra of carbon stars
33. Carbon isotope ratios in oxygen rich Mira and SRa variables
34. Niobium in R and (S6, 6e) and HR 1105 (S5,3)
35. Excitation of some La II, Gd II and V I Lines by the fluorescence mechanism in the spectra of the long-period variable o Ceti
V. Model Atmospheres for the Peculiar Stars
36. Model atmospheres for peculiar red giant stars. (Review paper)
37. Model atmospheres for M (super-) giants with different abundances of the heavy metals and the CNO group
38. C, N, O, and their isotope abundances in coolest stars of the red giant branch
39. HCN in stellar atmospheres -a quantum mechanical calculation
40. Dust formation in stellar winds
VI. Binary Systems. Radial Velocity Curves
41. Binary systems among the peculiar cool stars. (Review paper)
42. The first binary orbit for an S-type star - HR 1105
43. A search for companions to irregular variables of type S
44. The proportion of binaries having a degenerate companion; implications on the formation of barium stars
45. Formation of helium stars with extended envelopes in binaries
46. Mira's role in RR Tel revisited
VII. Evolutionary Tracks of the Peculiar Stars. Nuclear Reactions. Dredge-Up Mechanics
47. Stellar evolution, nucleosynthesis and dredge-up in cool giants. (Review Paper)
48. Analysis of Zr and Tc abundances from S-stars using the s-process with an exponential distribution of neutron exposures
49. The s-process within the R Coronae Borealis star U Aquarii
VIII. Conclusions. Discussions of Possible Cooperative Programs
50. Concluding summary and remarks
51. Opening remarks to the general discussion
Address to Philip Keenan on Behalf of the Participants
Author's Index.
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登録日 2020.06.27
更新日 2020.06.28