Limiting magnitude of speckle masking observations with VLT telescopes.
Abstract
The authors present computer simulations of high-resolution speckle imaging with the ESO VLT 8 m telescope. The experiments show that in nights of good seeing with r0 = 26 cm (≡0.4″ diffraction-limited (0.014″at λ = 500 nm) images of 17m objects can be reconstructed by speckle masking plus building block method from 100000 speckle interferograms recorded in 40 min observing time. Additionally, a SNR comparison of actual astronomical observations with computer simulations shows that computer simulations yield very useful predictions of the quality of astronomical speckle reconstruction.
- Publication:
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Science with the VLT
- Pub Date:
- 1995
- Bibcode:
- 1995svlt.confP..87H
- Keywords:
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- VLT: Imaging