Abstract
Saturation and curve-of-growth effects remain a dominant source of errors in abundance work. We suggest that the use of low noise material will enable future users to work more easily with weak lines and avoid these difficulties. The method of wavelength coincidence statistics is reviewed within the context of line identifications and abundance work. This technique is readily implemented, and should be a standard part of the analytical spectroscopy of stars. Analysis of the ultraviolet spectra of CP stars is severely handicapped by missing atomic data. Synthetic spectra are displayed showing the possible effects of hitherto unknown lines on spectra of IUE resolution.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Adelman, S. J. 1974, Ap. J. Suppl, 28, 51.
Bidelman, W. P. 1966, in Abundance Determinations in Stellar Spectra., IAU Symposium 26, p. 229.
Bidelman, W. P. 1968, in Nucleosynthesis, ed. W. D. Arnett, C. J. Hansen, J. W. Truran, and A. G. W. Cameron (New York: Gordon and Breach), p. 63.
Bord, D. J., and Davidson, J. P. 1982, Ap. J., 258, 674.
Chjonacki, G. T., Cowley, C. R., and Bord, D. J. 1984, Ap. J., 286, 736–746.
Corliss, C. H. and Bozman, W. R. 1962, N. B. S. Monograph,
Cowley, C. R. 1970, The Theory of Stellar Spectra, (New York: Gordon and Breach).
Cowley, C. R., and Adelman, S. J. 1983, Quart. Journ. Roy. Astron. Soc., 24, 393.
Cowley, C. R., and Arnold, C. N. 1978, Ap. J., 226, 420.
Cowley, C. R., and Corliss, C. H. 1983, Mon. Not. Roy. Astron. Soc., 203, 651.
Cowley, C. R., and Hensberge, H. 1981, Ap. J., 244, 252.
Davidson, J. P., and Bord, D. J. 1982, Astron. Ap., 111, 362.
Henseberge, H., and van Rensbergen, W. 1985, A Peculiar Newsletter, Fourteenth issue, July 1.
Hensberge, H., Van Santvoort, J., van der Hucht, K. A., and Morgan, T. H., 1986, Astron. Ap., in press.
Hiltner, W. A. 1945, Ap. J., 102, 438
Jaschek, M., Jaschek, C, and Gonzalez, Z. 1965, Zs. f. Ap., 62, 21.
Johansson, S. 1978, Physica Scr., 18, 217.
Johansson, S. 1981, in 23rd Liege International Astrophysical Colloquium, Upper Main Sequence Chemically Peculiar Stars, (Liege: Institut d’Astrophysique), p. 229.
Johansson, S. 1986, in preparation.
Johansson, S., and Jordan, C. 1984, Mon. Not. Roy. Astron. Soc., 210, 239–256.
Kurucz, R. L. 1981, Smith. Ap. Obs. Spec. Rept., 390,(K-81).
Kurucz, R. L., and Peytremann, E. 1975, Smith. Ap. Obs. Spec. Rept., 362, (KP).
Leckrone, D. S. 1984, Ap. J., 286, 725.
Martin, W. C., Zalubas, R., and Hagen, L. 1978, Atomic Energy Levels—The Rare Earths, NBS-NSRDS, 60, (AE IV).
Meggers, W. F., Corliss, C. H., and Scribner, B. F. 1975, NBS Monograph, 145.
Merrill, P. W. 1956, Lines of the Chemical Elements in Astronomical Spectra, Carnegie Institution of
Muthsam, H., and Cowley, C. R. 1984, Astron. and Ap., 130, 348.
Unsöld, A. 1955, Physik der Sternatmosphären, 2nd Ed., (Berlin: Springer-Verlag).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1986 D. Reidel Publishing Company
About this paper
Cite this paper
Cowley, R.C., Johansson, S. (1986). Practical Problems in the Analysis of CP Stars. In: Cowley, C.R., Dworetsky, M.M., Mégessier, C. (eds) Upper Main Sequence Stars with Anomalous Abundances. Astrophysics and Space Science Library, vol 125. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4714-6_14
Download citation
DOI: https://doi.org/10.1007/978-94-009-4714-6_14
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8597-7
Online ISBN: 978-94-009-4714-6
eBook Packages: Springer Book Archive