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Proceedings Paper

Nasmyth focus instrumentation of the New Solar Telescope at Big Bear Solar Observatory
Author(s): Wenda Cao; Nicolas Gorceix; Roy Coulter; Friedrich Wöger; Kwangsu Ahn; Sergiy Shumko; John Varsik; Aaron Coulter; Philip R. Goode
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Paper Abstract

The largest solar telescope, the 1.6-m New Solar Telescope (NST) has been installed and is being commissioned at Big Bear Solar Observatory (BBSO). It has an off-axis Gregorian configuration with a focal ratio of F/52. Early in 2009, first light scientific observations were successfully made at the Nasmyth focus, which is located on the east side of the telescope structure. As the first available scientific instruments for routine observation, Nasmyth focus instrumentation (NFI) consists of several filtergraphs offering high spatial resolution photometry in G-band 430 nm, Ha 656 nm, TiO 706 nm, and covering the near infrared 1083 nm, 1.6 μm, and 2.2 μm. With the assistance of a local correlation tracker system, diffraction limited images were obtained frequently over a field-of-view of 70 by 70 after processed using a post-facto speckle reconstruction algorithm. These data sets not only serve for scientific analysis with an unprecedented spatial resolution, but also provide engineering feedback to the NST operation, maintenance and optimization. This paper reports on the design and the implementation of NFI in detail. First light scientific observations are presented and discussed.

Paper Details

Date Published: 21 July 2010
PDF: 7 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77355V (21 July 2010); doi: 10.1117/12.856613
Show Author Affiliations
Wenda Cao, Ctr. for Solar-Terrestrial Research, New Jersey Institute of Technology (United States)
Big Bear Solar Observatory (United States)
Nicolas Gorceix, Big Bear Solar Observatory (United States)
Roy Coulter, Big Bear Solar Observatory (United States)
Friedrich Wöger, National Solar Observatory, Sacramento Peak (United States)
Kwangsu Ahn, Big Bear Solar Observatory (United States)
Sergiy Shumko, Big Bear Solar Observatory (United States)
John Varsik, Big Bear Solar Observatory (United States)
Aaron Coulter, Big Bear Solar Observatory (United States)
Philip R. Goode, Ctr. for Solar-Terrestrial Research, New Jersey Institute of Technology (United States)
Big Bear Solar Observatory (United States)


Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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