Hostname: page-component-5c6d5d7d68-qks25 Total loading time: 0 Render date: 2024-08-22T11:47:37.620Z Has data issue: false hasContentIssue false
  • English
  • Français

Helium Abundance Determinations In Main Sequence B Stars

Published online by Cambridge University Press:  25 April 2016

R. W. Simpson
R. W. Simpson*
Affiliation:
Department of Physics, University of Queensland
Get access Rights & Permissions [Opens in a new window]

Extract

The most recent helium abundance determinations in main sequence B stars are those of Hardrop and Scholtz, Kodaira and Scholtz, Norris, and Leckrone. Their results indicate that it is possible to assign a helium abundance which is characteristic of all B stars. Norris and Leckrone worked with a number of B stars ranging from B0 to B9, and both have assigned a characteristic helium abundance to the B stars. Norris derived a value, A = 0.088 ± 0.012, and Leckrone a value of A = 0.106 ± 0.01, where A is the abundance of helium relative to hydrogen by number.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 2 , Issue 1 , July 1971 , pp. 27 - 30
Copyright
Copyright © Astronomical Society of Australia 1971

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Hardrop, J. and Scholtz, M., Astrophys. J., 173, 193 (1970).CrossRefGoogle Scholar
2 Kodaira, K. and Scholtz, M., Astron. and Astrophys., 6, 93 (1970).Google Scholar
3 Norris, J., Astrophys. J., (to be published).Google Scholar
4 Leckrone, D. L., Goddard Space Flight Center, Preprint X-617-70-367 (1970).Google Scholar
5 O’Mara, B. J. and Simpson, R. W., R.A.S. Memoirs, (in press).Google Scholar
6 Dyne, R. J. and O’Mara, B. J., Aust. J. Phys., (to be published).Google Scholar
7 Johnson, H. R. and Poland, A. I., J.Q.S.R.T., 9, 1151 (1969).Google Scholar
8 Poland, A. I., Astrophys. J., 160, 609 (1970).CrossRefGoogle Scholar
9 Mihalas, D. and Auer, L. H., Astrophys. J., 160, 1161 (1970).Google Scholar
10 Oke, J. B. and Schild, R. E., Astrophys. J., 161, 1015 (1970).Google Scholar
11 Hayes, D. S., Astrophys. J., 159, 165 (1970).Google Scholar