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Paper: FUSE Observations of three Early-type, Double-lined Spectroscopic Binaries in the Magellanic Clouds
Volume: 388, Mass Loss from Stars and the Evolution of Stellar Clusters
Page: 181
Authors: Iping, R.C.; Gies, D.; Sonneborn, G.; Kaper, L.
Abstract: Initial Far Ultraviolet Spectroscopic Explorer (FUSE) observations of Hodge 53-47, an O4IIIf + O6V (16 MSolar+ 26 MSolar) massive binary in the SMC and HV2241, an O7 V + O8 V-III (36 MSolar+ 18 MSolar) massive binary in the LMC are presented. A comparison was made with FUSE archival observations on SK-67 105 (48MSolar+ 31MSolar) 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: OVI, 1032,1038, S IV, 1062,1073, Si IV 1122,1128 and PV, 1118, 1128.
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