Found 4 talks width keyword Lucky imaging

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Thursday March 10, 2016
Living on the edge: Adaptive Optics+Lucky Imaging
IAC

Abstract

I will summarize the two well proved techniques for high spatial resolution: Lucky Imaging and Adaptive Optics and the work of our group in this field. I will also introduce the state-of-the-art new instrument Adaptive Optics Lucky Imager (AOLI). On AOLI, both techniques merge providing a very versatile answer on the visible range. Some first science on the T-Tauri system LkHa 262/263 in the MBM 12 cloud will be reported together with a review of the next steps to be developed.
Archived in: Telescopes and instrumentation - Keywords:Lucky imaging, FASTCAM, diffraction limit, adaptive optics, T Tauri, protoplanetary discs, pre-main sequence, low-mass stars
Abstract


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Monday June 21, 2010
Diffraction limited imaging in the visible with large ground-based telescopes
Institute of Astronomy, University of Cambridge, UK

Abstract

A new method of imaging in the visible has given the highest resolution images ever taken anywhere. It needs a natural guide star of only 18.5 mag (I band). This talk will show how it can be done on the WHT, the VLT and even on the GTC.
Archived in: Telescopes and instrumentation - Keywords:Lucky imaging, Grantecan, GTC, detectors, atmospheric effects
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Thursday June 17, 2010
High contrast and high resolution optical imaging from the ground: results from FASTCAM at NOT and WHT
Instituto de Astrofísica de Canarias, Spain

Abstract

Developed since 2006 by the IAC and UPCT, FASTCAM is an optical camera which takes advantage of recently available low noise and fast read-out CCDs (with integration times ~30 ms) to perform speckle imaging of astrophysical sources. At high enough speed rate, the atmospheric turbulence - classically responsible for image degradation , i.e. seeing- can be frozen in the image, which permits us to implement "lucky imaging techniques". In this shared talk, we will review the principle and objectives of the instrument (mainly oriented so far towards the study of brown dwarfs), we will present the results obtained in different campaigns at the NOT and WHT telescopes stressing the effort towards high contrast and high resolution optical imaging potential which can be further enhanced with post-processing techniques. In this talk we will also discuss some ideas for future projects and scientific applications, possibly in conjunction with the GTC.
Archived in: Telescopes and instrumentation - Keywords:Lucky imaging, FASTCAM, diffraction limit, detectors
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Tuesday June 15, 2010
Perspectives for speckle cameras at the GTC and WHT
Instituto de Astrofísica de Andalucía, Spain

Abstract

I will present a short introduction to speckle imaging and the so-called speckle holography technique. Subsequently, I will present results of speckle observations with the VLT (NACO) and Keck (NIRC) telescopes. The experiments demonstrate that in the observed targets speckle imaging combined with holographic image reconstruction provides imaging quality that can compete with and even supersede current adaptive optics (AO) imaging systems. Speckle imaging is a way to achieve reliable, high-quality, diffraction limited imaging capacity at relatively low costs. I will discuss what would be the estimated performance of speckle cameras at the WHT and GTC and sketch possible concepts.
Archived in: Telescopes and instrumentation - Keywords:Lucky imaging, Grantecan, GTC, diffraction limit, adaptive optics
Abstract


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