Eta Carinae
resolved by speckle interferometry*
G. Weigelt und J.
Ebersberger
Abstract
Digital speckle interferometric observations of Eta Carinae
were
performed at wavelengths of 820 and 850 nm with the 3.6-m and 2.2-m
telescope at ESO. Four star-like components (stars or gas clouds) were
resolved for the first time. The diameter of all four components is
less
than 0.03 arcsec. The field size of the reconstructed autocorrelation
is
about 0.8 arcsec. The separations of the components A2, A3 and A4
relative to the brightest component A1 are 0.18, 0.22 and 0.09 arcsec,
respectively.
Speckle masking
observations of eta Carinae
Hofmann, K.-H., Weigelt,
G.
Abstract
We have performed speckle masking observations of eta Carinae
at 850 nm with the 2.2m ESO/MPG telescope. The reconstructed
diffraction-limited image shows that eta Carinae consists of one
dominant star and three fainter star-like objects at separations
of 0.21'', 0.18'' and 0.11''. The three faint objects are ~12 times
fainter than the dominant star. The diameter of all four objects
is <0.03".