Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spd....42.2001f&link_type=abstract
American Astronomical Society, SPD meeting #42, #20.01; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
The Visible Broadband Imager (VBI) will be the first of the five first-light instruments for the Advanced Technology Solar Telescope (ATST). It is designed to observe the solar atmosphere at heights ranging from photosphere to chromosphere. High frame-rate detectors that sample the FOV of up to 2.8 arcmin in diameter critically near or at the diffraction limit of ATST's 4 meter aperture will facilitate near real-time speckle reconstruction imaging. With its focus on high-spatial resolution, the VBI will be addressing scientific questions related to the smallest structures visible in the solar atmosphere today with high photometric precision. The capability to observe the solar atmosphere with a cadence of about 3 seconds per reconstructed image will enable the VBI to temporally resolve fast evolving structures.
In this contribution we present the current design of the VBI and highlight some scientific questions related to fast evolving, small-scale features within the solar atmosphere that the VBI will address.
Friedrich Woeger
Rimmele Th.
Tritschler Alexandra
Uitenbroek Han
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