Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-09T19:47:21.147Z Has data issue: false hasContentIssue false

Carbon Abundance in the WC 11 Star CPD −56°8032

Published online by Cambridge University Press:  14 August 2015

L. Houziaux
Affiliation:
Institut d'Astrophysique 4200 Cointe Ougrée, Belgium
A. Heck
Affiliation:
ESA IUE Observatory Villafranca, Madrid, Spain

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The star CPD −56°8032 is one of the few objects classified WC 11. First noted by Bidelman, MacConnell and Bond (1968), its blue-violet spectrum has been described by Cowley and Hiltner (1969), while the red/infrared region has been studied by Thackeray (1977). Infrared magnitudes have been measured by Webster and Glass (1974), and Aitken et al. (1980) have scanned the infrared spectrum from 8 to 13 µm. Cohen and Barlow (1980) have also published infrared fluxes from 3.45 to 20 µm. This star shows strong emission lines belonging to C II and C III, much sharper than the usual bands seen in WC stars. Bright lines of H, He I, O II, O III, Si III and Si IV are also present. O I λ 7774 triplet shows a P Cygni profile (Thackeray, 1977). Forbidden lines belong to [O I] (red lines), [O II] (violet and infrared doublets) [N II] (6548 and 6584 å), and [S II] (4068 and 6716 å).

Type
SESSION 2 — THE CHEMISTRY OF THE WOLF-RAYET STARS
Copyright
Copyright © Reidel 1982 

References

Aitken, D.K., Barlow, M.J., Roche, P.F. and Spencer, P.M., 1980, Monthly Notices R. Astron. Soc., 192, 679.Google Scholar
Bidelman, W.P., MacConnell, D.J. and Bond, H.E., 1968, IAU Circular 2089.Google Scholar
Brockelhurst, M., 1971, Monthly Notices R. Astron. Soc., 153, 471.Google Scholar
Cassatella, A., Holm, A., Ponz, P., Schiffer, III F.H., 1980, IUE ESA Newsletter n°5.Google Scholar
Cohen, M. and Barlow, M.J., 1980, Astrophys. J., 238, 585.Google Scholar
Cowley, A.P., Hiltner, W.A., 1969, Astron. and Astrophys., 3, 372.Google Scholar
Harrington, J.P., Lutz, J.H., Seaton, M.J. and Stickland, D.J., 1980, Monthly Notices R. Astron. Soc. 191, 13.CrossRefGoogle Scholar
Kurucz, R.L., 1979, Astrophys. J. Suppl. Ser., 40, 1.CrossRefGoogle Scholar
Nandy, K., Thompson, G.I., Jamar, C., Monfils, A. and Wilson, R., 1976, Astron. and Astrophys. 51, 63.Google Scholar
Nandy, K., 1981, private communication.Google Scholar
Seaton, M.J., 1979, Monthly Notices R. Astron. Soc., 187, 73P.Google Scholar
Thackeray, A.D., 1977, The Observatory 97, 165.Google Scholar
Webster, B.L. and Glass, I.S., 1974, Monthly Notices R. Astron. Soc. 166, 491.Google Scholar