R136a in the 30 Doradus nebula resolved by holographic speckle interferometry

Details R136a in the 30 Doradus nebula resolved by holographic speckle interferometry R136a in the 30 Doradus nebula resolved by holographic speckle interferometry

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...150l..18w&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 150, no. 1, Sept. 1985, p. L18-L20. DFG-supported research.

Astronomy and Astrophysics

Astrophysics

93

Holographic Interferometry, Image Reconstruction, Magellanic Clouds, Nebulae, Speckle Patterns, Star Clusters, Hydrogen Clouds, Spectral Resolution, Star Distribution, Stellar Magnitude

Scientific paper

The authors have performed digital speckle interferometry observations of R 136, the luminous central object in the 30 Doradus nebula. It was possible to reconstruct a diffraction-limited true image of R 136a by using R 136b and R 136c as the deconvolution keys (holographic speckle interferometry). The reconstructed image shows for the first time that R 136a is a dense star cluster consisting of 8 stars within a diameter of 1arcsec (at λ ≡ 710 nm). The dominating objects are three stars of almost identical magnitudes with separations of 0.10arcsec and 0.48arcsec. The reconstructed image has a resolution of 0.09arcsec.

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