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Theoretical line profiles in the ultraviolet spectra of early B-type stars

Published online by Cambridge University Press:  14 August 2015

Donald C. Morton*
Affiliation:
Princeton University Observatory, U.S.A.

Abstract

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The blended profiles of 106 ultraviolet lines, including all those expected to have equivalent widths greater than 2 Å in the wavelength range 911,6 to 3000 Å, have been computed for Bz V and B0 V model atmospheres. Most of the lines are found shortward of 1410 Å, where they have deep cores and many have extensive wings. This blanketing amounts to 31% at Bz V and 20 % at B0 V.

On a calculé les profils de 106 raies U. V. de longueurs d'onde comprises entre 911,6 ei 3000 Å, у compris celles de largeur équivalente supérieure à 2 Å et cela pour des modèles d'atmosphere Bz V et B0 V. La plupart des raies se situent dans la région de longueur d'onde inférieure à 1410 Å : elles présentent une absorption centrale et beaucoup ont des ailes tres étendues.

Резюме

Резюме

Вычислены контуры 106 ультрафиолетовых линий с длиной волн заключенной между 911,6 и 3000 Å, включая и те эквивалентная ширина которых превышает 2 Å для атмосферных моделей Bz V и В0 V. Большинство линий расположено в области длины волн меньше 1410 Å; они выявляют наличие сильного центрального поглощения и многие имеют очень распростерты крылья.

Type
Session IV. Far Ultra-Violet Radiation : Stars and Galaxies
Copyright
Copyright © CNRS 1965 

References

Gaustad, J. E. and Spitzer, L. S., 1961, Ap. J., 134, 771 Google Scholar
Griem, H. R., 1960, Ap. J., 132, 883.Google Scholar
Underhill, A. B., 1962a, Publ. Dom. Astrophys. Obs., 11, 433; 1962b, Publ. Dom. Astrophys. Obs., 11, 467.Google Scholar