Abstract
The problem of the central intensities of stellar absorption lines is considered. The discussion is restricted to absorption lines originating from the ground state. The atomic processes of exciting and de-exciting of the upper stationary state corresponding to the line considered are transitions from and to the ground state together with electron captures on the stationary state and photoionisation from it. The corresponding emission coefficients are evaluated. The resulting fundamental equation governing the radiation field in the stellar atmosphere is discussed. The predictions of the theory concerning central intensities of strong absorption lines are compared with observations. It is possible to account for the observational facts qualitatively, and partly also quantitatively.
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
A. Unsöld, ZS. f. Phys. 44, 793, 1927.
K. Schwarzschild, Sitz.-Ber. Preul3. Akad. d. Wiss., math.-phys. Kl. 2, 1183, 1914.
A. S. Eddington, The Internal Constitution of the Stars, Cambridge 1926; Der innere Aufbau der Sterne. Deutsche Ausgabe. Berlin 1928.
A. S. Eddington, M. N. 89, 620, 1929.
E. A. Milne, M. N. 88, 493, 1928.
A. UnsÖLD, Probleme der modernen Physik. ( Sommerfeld-Festschrift ). Leipzig 1928.
R. v. d. R. Woolley, M. N. 90, 170, 1929.
A. Pannekoee. M. N. 91, 139, 1930; 91, 519, 1931.
S. Rosseland, Astrophysik. Berlin 1931.
A. UnsÖLD, ZS. f. Astrophys. 4, 319, 1932.
A. Pannekoek, B. A. N. 7, 151, 1933.
B. StrÖMgren, in E. u. B. StrÖMgren, Lehrbuch der Astronomie. S. 384. Berlin 1933.
R. v. d. R. Woolley, M. N. 94, 631, 1934.
S. Rosse-Land, Astrophys. Journ. 63, 218, 1926; cfr. also [9].
V. Weisskopf U. E. Wigner, ZS. f. Phys. 63, 54, 1930; further V. Weisskopf, Ann. d. Phys. [5] 9, 23, 1931; cfr. also M. Minnaert, ZS. f. Astrophys. 4, 153, 1932
A. Unsöld, ebenda 2, 199, 1931
V. Weisskopf, The Observatory 56, 291, 1933.
V. Weisskopf, ZS. f. Phys. 85, 451, 1933.
A. Pannekoek, B. A. N. 3, 207, 1926; 4, 7, 1927; B. Gerasimovic, Harv. Bull. No. 841, 1926; cfr. also Handb. d. Astrophys. Iii, 1, S. 287 and [9], S. 230.
G. CilliÉ, M. N. 92, 820, 1932.
A. D. Thackeray, M. N. 95, 293, 1935.
R. O. Redman, M. N. 95, 290, 1935.
H. v. Klüber, ZS. f. Phys. 44. 481, 1927.
M. Minnaert, ebenda 45, 610, 1927.
A. UnsÖLD, ebenda 46, 765, 1927; 59, 353, 1930.
L. D’azambuja, Annales de l’Observatoire de Paris 8, 59, 65, 1930.
M. Minnaert U. G. F. W. Mulders, ZS. f. Astrophys. 1, 192, 1930; cfr. also 2, 178, 1931.
H. H. Plaskett, M. N. 91, 870, 1931.
E. A. Milne, Phil. Mag. 47, 209, 1924.
W. S. Adams u. H. N. Russell, Astrophys. Journ. 68, 9, 1928; 70, 11, 1929.
A. Unsöld ZS. f. Astrophys. 1, 1, 1930.
G. Shajn and O. Struve, M. N. 89, 222, 1929.
E. Fermi, ZS. f. Phys. 59, 680, 1930.
E. A. Milne, Phil. Trans. (A) 228, 421, 1929.
B. Lindblad, Nova Acta Reg. Soc. Sc. Upsala 6, Nr. 1, 17, 1923.
C. G. Abbot, F. E. Fowle, L. B. Aldrich, Annals Astrophys. Obs. Smithson. Inst. 4, 221, 1922.
Rights and permissions
Copyright information
© 1935 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Strömgren, B. (1935). The influence of electron captures on the contours of Fraunhofer lines. In: The influence of electron captures on the contours of Fraunhofer lines. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-38186-1_1
Download citation
DOI: https://doi.org/10.1007/978-3-662-38186-1_1
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-37431-3
Online ISBN: 978-3-662-38186-1
eBook Packages: Springer Book Archive