Abstract
Using the Hubble Space Telescope (HST) and the Faint Object Spectrograph (FOS) high signal to noise spectrograms were obtained for 15 OB stars in the Magellanic Clouds***, three of which are of spectral type O3. The data cover the spectral region from 1150 A – 2300 A with a resolution of Δλ/λ≈1 A. One O8.5 supergiant, OB78#231, in M31‡is also included in this work. These data are a substantial improvement on previous high resolution IUE observations in the Magellanic Clouds (Walborn et al. 1985 and references therein) because of the smaller aperture and the much better signal to noise ratio, while no high resolution UV spectra of O stars in M31 have been obtained before. In this paper we discuss various morphological aspects of the spectra, concerning metallicity and the stellar winds, compared to galactic analogues.
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Heap, S.R., Altner, B., Ebbets, D., Hubeny, I., Hutchings, J.B., Kudritzki, R.-P., Voels, S.A., Haser, S.M., Pauldrach, A.W.A., Puls, J., Butler, K.: 1991,ApJ 377, L29
Howarth, I.D., Prinja, R.K.: 1989,ApJS 69, 527
Hutchings, J.B., Bianchi, L., Lamers, H.J.G.L.M., Massey, P., Morris, S.C.: 1992,ApJ 400, L35
Kudritzki, R.-P.: 1992,A&A 266, 395
Kudritzki, R.-P., Lennon, D.J., Becker, S.R. et al. in: ‘Science with the Hubble Space Telescope’: ESO Conference and Workshop Proceedings No. 44, eds. P. Benvenuti and E. Schreier,1992, p. 279 Science with the Hubble Space Telescope Garching279
Pauldrach, A.W.A., Kudritzki, R.-P., Puls, J., Butler, K., Hunsinger, J.: 1993,A&A, in press
Prinja, R.K., Barlow, M.J., Howarth, I.D.: 1990,ApJ 361, 607
Walborn, N.R.: 1977,ApJ 215, 53
Walborn, N.R.: 1982,ApJ 254, L15
Walborn, N.R.: 1983,ApJ,265, 716
Walborn, N.R., Nichols-Bohlin, J., Panek, R.J.: 1985, ‘IUE Atlas of O-type spectra from 1200 to 1900 A’,NASA reference publication, 1155
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Haser, S.M., Lennon, D.J., Kudritzki, R.P. et al. Hubble Space Telescope spectroscopy of massive hot stars in the Magellanic Clouds and M31. Space Sci Rev 66, 179–182 (1993). https://doi.org/10.1007/BF00771060
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DOI: https://doi.org/10.1007/BF00771060