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• W2770589020 endingPage "A106" @default.
• W2770589020 startingPage "A106" @default.
• W2770589020 abstract "Context. The mass loss from massive stars is not understood well. Eta Car is a unique object for studying the massive stellar wind during the LBV phase. It is also an eccentric binary with a period of 5.54 yr. The nature of both stars is uncertain, although we know from X-ray studies that there is a wind-wind collision whose properties change with orbital phase. Methods. Observations of Eta Car were carried out with the ESO VLTI and the AMBER instrument between approximately five and seven months before the August 2014 periastron passage. Velocity-resolved aperture-synthesis images were reconstructed from the spectrally dispersed interferograms. Interferometric studies can provide information on the binary orbit, the primary wind, and the wind collision. Results. We present velocity-resolved aperture-synthesis images reconstructed in more than 100 different spectral channels distributed across the Br Gamma 2.166 micrometer emission line. The intensity distribution of the images strongly depends on wavelength. At wavelengths corresponding to radial velocities of approximately -140 to -376 km/s measured relative to line center, the intensity distribution has a fan-shaped structure. At the velocity of -277 km/s, the position angle of the symmetry axis of the fan is ~ 126 degree. The fan-shaped structure extends approximately 8.0 mas (~ 18.8 au) to the southeast and 5.8 mas (~ 13.6 au) to the northwest, measured along the symmetry axis at the 16% intensity contour. The shape of the intensity distributions suggests that the obtained images are the first direct images of the innermost wind-wind collision zone. Therefore, the observations provide velocity-dependent image structures that can be used to test three-dimensional hydrodynamical, radiative transfer models of the massive interacting winds of Eta Car." @default.
• W2770589020 created "2017-12-04" @default.
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• W2770589020 date "2016-10-01" @default.
• W2770589020 modified "2023-10-03" @default.
• W2770589020 title "VLTI-AMBER velocity-resolved aperture-synthesis imaging of<i>η</i>Carinae with a spectral resolution of 12 000" @default.
• W2770589020 cites W1498582258 @default.
• W2770589020 cites W1670853612 @default.
• W2770589020 cites W1966999270 @default.
• W2770589020 cites W1975459411 @default.
• W2770589020 cites W1976646461 @default.
• W2770589020 cites W1978256731 @default.
• W2770589020 cites W1984512628 @default.
• W2770589020 cites W2001086249 @default.
• W2770589020 cites W2011422218 @default.
• W2770589020 cites W2012069029 @default.
• W2770589020 cites W2016011910 @default.
• W2770589020 cites W2018358180 @default.
• W2770589020 cites W2025107042 @default.
• W2770589020 cites W2025988466 @default.
• W2770589020 cites W2026236859 @default.
• W2770589020 cites W2026718913 @default.
• W2770589020 cites W2029422149 @default.
• W2770589020 cites W2031062516 @default.
• W2770589020 cites W2032077970 @default.
• W2770589020 cites W2033401231 @default.
• W2770589020 cites W2037603703 @default.
• W2770589020 cites W2037945691 @default.
• W2770589020 cites W2040022445 @default.
• W2770589020 cites W2042276325 @default.
• W2770589020 cites W2043535368 @default.
• W2770589020 cites W2043940879 @default.
• W2770589020 cites W2044061621 @default.
• W2770589020 cites W2049359446 @default.
• W2770589020 cites W2049585981 @default.
• W2770589020 cites W2051462981 @default.
• W2770589020 cites W2056583232 @default.
• W2770589020 cites W2056819414 @default.
• W2770589020 cites W2057031589 @default.
• W2770589020 cites W2062192502 @default.
• W2770589020 cites W2065637644 @default.
• W2770589020 cites W2075284665 @default.
• W2770589020 cites W2078594402 @default.
• W2770589020 cites W2084750615 @default.
• W2770589020 cites W2086453801 @default.
• W2770589020 cites W2089270212 @default.
• W2770589020 cites W2093462453 @default.
• W2770589020 cites W2099698167 @default.
• W2770589020 cites W2100138984 @default.
• W2770589020 cites W2108904628 @default.
• W2770589020 cites W2110792951 @default.
• W2770589020 cites W2111581911 @default.
• W2770589020 cites W2117116463 @default.
• W2770589020 cites W2117392355 @default.
• W2770589020 cites W2122729710 @default.
• W2770589020 cites W2128441099 @default.
• W2770589020 cites W2133815975 @default.
• W2770589020 cites W2134454135 @default.
• W2770589020 cites W2134669919 @default.
• W2770589020 cites W2136977008 @default.
• W2770589020 cites W2139111539 @default.
• W2770589020 cites W2139319139 @default.
• W2770589020 cites W2140296912 @default.
• W2770589020 cites W2147858464 @default.
• W2770589020 cites W2148917540 @default.
• W2770589020 cites W2149158219 @default.
• W2770589020 cites W2151898625 @default.
• W2770589020 cites W2157805572 @default.
• W2770589020 cites W2167830176 @default.
• W2770589020 cites W2170815993 @default.

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