120 citations · 267 across the 6 of their papers we have counts for
6 papers
A new concept for the combination of optical interferometers and high-resolution spectrographs
S. Albrecht, A. Quirrenbach, R. N. Tubbs +1
The combination of high spatial and spectral resolution in optical astronomy enables new observational approaches to many open problems in stellar and circumstellar astrophysics. H…
The effect of wavefront corrugations on fringe motion in an astronomical interferometer with spatial filters
Robert Tubbs
Numerical simulations of atmospheric turbulence and AO wavefront correction are performed to investigate the timescale for fringe motion in optical interferometers with spatial fil…
Lucky Exposures: Diffraction limited astronomical imaging through the atmosphere
Robert N. Tubbs
Through selection of short exposure images we achieve diffraction-limited I-band imaging from well-figured ground-based telescopes as large as 2.5 m diameter. The faint limiting ma…
Diffraction-limited CCD imaging with faint reference stars
R. N. Tubbs, J. E. Baldwin, C. D. Mackay +1
By selecting short exposure images taken using a CCD with negligible readout noise we obtained essentially diffraction-limited 810 nm images of faint objects using nearby reference…
Sub-electron read noise at MHz pixel rates
C. D. Mackay, R. N. Tubbs, R. Bell +2
A radically new CCD development by Marconi Applied Technologies has enabled substantial internal gain within the CCD before the signal reaches the output amplifier. With reasonably…
Diffraction-limited 800nm imaging with the 2.56m Nordic Optical Telescope
J. E. Baldwin, R. N. Tubbs, G. C. Cox +3
A quantitative assessment is presented of diffraction-limited stellar images with Strehl ratios of 0.25-0.30 obtained by selection of short-exposure CCD images of stars brighter th…