Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..388..181i&link_type=abstract
Mass Loss from Stars and the Evolution of Stellar Clusters ASP Conference Series, Vol. 388, proceedings of the conference held 2
Astronomy and Astrophysics
Astronomy
Scientific paper
Initial Far Ultraviolet Spectroscopic Explorer (FUSE) observations of Hodge 53-47, an O4IIIf + O6V (16 Msun + 26 Msun) massive binary in the SMC and HV2241, an O7 V + O8 V-III (36 Msun + 18 Msun) massive binary in the LMC are presented. A comparison was made with FUSE archival observations on SK-67 105 (48 Msun + 31 Msun) in the LMC. These systems have very short periods (1.4 - 4.3 days), represent rare, young evolutionary stages of massive systems that form in dense clusters of stars. The spectra obtained show FUV spectrophotometric changes as a function of orbital phase, as evidence of wind collision effects. Phase dependent changes in the following P-Cygni stellar windlines were observed: O VI, 1032,1038, S IV, 1062,1073, Si IV 1122,1128 and P V, 1118, 1128.
Gies Doug
Iping Rosina C.
Kaper Lex
Sonneborn George
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