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An examination of the planetesimal impact hypothesis of the formation of CP stars

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Abstract

The impact hypothesis has been found to provide a qualitative basis for an understanding of many of the characteristics of the CP stars. It founders primarily upon the problem of underabundances of certain elements and large variations in isotopic abundances. We conclude, however, that the hypothesis should not be prematurely discarded, since it may be combined with other mechanisms to account for the variety of abundance peculiarities of the CP stars.

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References

  • Abt, H.: 1961,Astrophys. J. Suppl. 51, 37.

    Google Scholar 

  • Abt, H.: 1967, in R. C. Cameron (ed.),The Magnetic and Related Stars, Mono Book Corp., Baltimore.

    Google Scholar 

  • Abt, H. and Snowden, M.: 1973,Astrophys. J. Suppl. 25, 137.

    Google Scholar 

  • Aikman, G. C. L.: 1976,Publ. Dom. Astrophys. Obs. 14, 379.

    Google Scholar 

  • Alfvén, H. and Arrhenius, G.: 1975,Structure and Evolutionary History of the Solar System, D. Reidel Publ. Co., Dordrecht.

    Google Scholar 

  • Allen, M. S.: 1976, Ph.D. thesis, University of Michigan.

  • Allen, M. S. and Cowley, C. R.: 1976,Bull. Am. Astron. Soc. 8, 522.

    Google Scholar 

  • Aller, M. F.: 1970,Astron. Astrophys. 6, 67.

    Google Scholar 

  • Arrhenius, G. and Alfvén, H.: 1971,Earth Planetary Sci. Lett. 10, 253

    Google Scholar 

  • Barshay, S. S. and Lewis, J. S.: 1976,Ann. Rev. Astron. Astrophys. 14, 81.

    Google Scholar 

  • Bashek, B.: 1975, in B. Bashek, W. H. Kegel, G. Traving (eds.),Problems in Stellar Atmospheres and Envelopes, Springer-Verlag, Berlin, p. 101.

    Google Scholar 

  • Bidelman, W. P.: 1962,Astron. J. 67, 645.

    Google Scholar 

  • Bonnevier, B.: 1976,Astrophys. Space Sci. 40, 231.

    Google Scholar 

  • Conti, P. S.: 1970,Publ. Astron. Soc. Pacific 82, 781.

    Google Scholar 

  • Conti, P. S. and Barker, P. K.: 1973,Astrophys. J. 186, 185.

    Google Scholar 

  • Cowley, C. R.: 1975, in W. W. Weiss, H. Jenkner, and H. J. Wood (eds.),Physics of Ap Stars, IAU Colloq. No. 32, Finsterle and Co., Vienna, p. 275.

    Google Scholar 

  • Cowley, C. R.: 1976a,Sky Telesc. 52, 236.

    Google Scholar 

  • Cowley, C. R.: 1976b,Sky Telesc. 52, 341.

    Google Scholar 

  • Cowley, C. R.: 1976c,Astrophys. J. Suppl. 32, 631.

    Google Scholar 

  • Cowley, C. R. and Aikman, G. C. L.: 1975,Publ. Astron. Soc. Pacific 87, 513.

    Google Scholar 

  • Cowley, C. R., Allen, M. S., and Aikman, G. C. L.: 1976,Astrophys. Lett. 18, 83.

    Google Scholar 

  • Danielsson, L.: 1973,Astrophys. Space Sci. 24, 459.

    Google Scholar 

  • Deutsch, A. J.: 1956,Publ. Astron. Soc. Pacific 68, 92.

    Google Scholar 

  • Dolginov, A. Z.: 1975a, in W. W. Weiss, H. Jenkner, and H. J. Wood (eds.),Physics of Ap Stars, IAU Colloq. No. 32, Finsterle and Co., Vienna, p. 752.

    Google Scholar 

  • Drobyshevsky, E. M.: 1975,Astrophys. Space Sci. 35, 403.

    Google Scholar 

  • Dworetsky, M. M.: 1971, Ph.D. Thesis, University of California at Los Angeles.

  • Dworetsky, M. M., Ross, J. E., and Aller, L. H.: 1970,Bull. Am. Astron. Soc. 2, 311.

    Google Scholar 

  • Goldschmidt, V. M.: 1954,Geochemistry, University Press, Oxford.

    Google Scholar 

  • Goles, G. G.: 1971, in B. Mason (ed.),Handbook of Elemental Abundances in Meteorites, Gordon and Breach, New York, p. 201.

    Google Scholar 

  • Guthrie, B. N. G.: 1971,Astrophys. Space Sci. 13, 168.

    Google Scholar 

  • Hartmann, W. K.: 1977,Sci. Amer. 236, 84.

    Google Scholar 

  • Hartoog, M. R.: 1976,Astrophys. J. 205, 807.

    Google Scholar 

  • Havnes, O.: 1975a, in W. W. Weiss, H. Jenkner, and J. G. Wood (eds.),Physics of Ap Stars, IAU Colloq. No. 32, Finsterle and Co., Vienna, p. 135.

    Google Scholar 

  • Havnes, O.: 1975b,Astron. Astrophys. 38, 105.

    Google Scholar 

  • Havnes, O. and Conti, P. S.: 1971,Astron. Astrophys. 14, 1.

    Google Scholar 

  • Jaschek, M. and Jaschek, C.: 1974,Vistas Astron. 16, 131.

    Google Scholar 

  • Joss, P. C.: 1974,Astrophys. J. 191, 771.

    Google Scholar 

  • Kuchowicz, B.: 1975, in W. W. Weiss, H. Jenkner, and H. J. Wood (eds.),Physics of Ap stars, IAU Colloq. No. 32, Finsterle and Co., Vienna, p. 169.

    Google Scholar 

  • Lehnert, B.: 1976,Astrophys. Space Sci. 40, 225.

    Google Scholar 

  • Mason, B.: 1966,Principles of Geochemistry, 3rd ed., John Wiley and Co., New York.

    Google Scholar 

  • Michaud, G.: 1970,Astrophys. J. 160, 641.

    Google Scholar 

  • Michaud, G.: 1975, in W. W. Weiss, H. Jenkner, and H. J. Wood (eds.),Physics of Ap Stars, IAU Colloq. No. 32, Finsterle and Co., Vienna, p. 81.

    Google Scholar 

  • Michaud, G. and Vauclair, S.: 1972,Astrophys. Lett. 11, 117.

    Google Scholar 

  • Michaud, G., Reeves, H., and Charland, Y.: 1974,Astron. Astrophys. 37, 313.

    Google Scholar 

  • Pendl, E. S. and Seggeweiss, W.: 1975, in W. W. Weiss, H. Jenkner, and H. J. Wood (eds.),Physics of Ap Stars, IAU Colloq. No. 32, Finsterle and Co., Vienna, p. 357.

    Google Scholar 

  • Preston, G. W.: 1974,Ann. Rev. Astron. Astrophys. 12, 257.

    Google Scholar 

  • Rankama, K. and Sahama, Th. G.: 1950,Geochemistry, The University of Chicago Press, Chicago, p 91.

    Google Scholar 

  • Reed, G. W., Jr.: 1971, in B. Mason (ed.),Handbook of Elemental Abundances in Meteorites, Gordon and Breach, New York, p. 487.

    Google Scholar 

  • Ringwood, A. E.: 1975,Composition and Petrology of the Earth's Mantle, McGraw Hill, New York.

    Google Scholar 

  • Sargent, W. L. W.: 1964,Ann. Rev. Astron. Astrophys. 2, 297.

    Google Scholar 

  • Sherman, J. C.: 1973,Astrophys. Space Sci. 24, 487.

    Google Scholar 

  • Vauclair, S., Michaud, G., and Charland, Y.: 1974,Astron. Astrophys. 31, 381.

    Google Scholar 

  • White, R. E., Vaughan, A. H. Jr., Preston, G. W., and Swings, J. P.: 1976,Astrophys. J. 204, 131.

    Google Scholar 

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Contributions from the Dominion Astrophysical Observatory, Victoria, B.C., No. 342-NRC No. 16101.

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Cowley, C.R. An examination of the planetesimal impact hypothesis of the formation of CP stars. Astrophys Space Sci 51, 349–362 (1977). https://doi.org/10.1007/BF00644158

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  • DOI: https://doi.org/10.1007/BF00644158

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