NOAO >   Observing Info >   Approved Programs >   2009B-0259

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Proposal Information for 2009B-0259


PI: Mark S Keremedjiev, University of Florida, msk@astro.ufl.edu
Address: Astronomy Department, 211 Bryant Space Sciences, Gainesville, FL 32611, USA

CoI: Stephen Eikenberry, University of Florida

Title: On-Sky Demonstration of Speckle Stabilization for SPIFS: Part II Loop Closure

Abstract: During the 2009B semester, we wish to perform proof-of-concept testing of a new observational technique called Stabilized-sPeckle Integral Field Spectroscopy (SPIFS) on the KPNO 2.1-m. These observations would follow up a speckle characterization run that will occur in June of the 2009A semester. The 2009A run will be used to characterize speckle patterns through our optical system and tune the instrument so that speckle stabilization via loop closure can be achieved during the 2009B semester. SPIFS will enable, under certain observational conditions and constraints, low-to-modest Strehl diffraction-limited imaging spectroscopy from large ground-based telescopes in the optical bandpass (i.e. V, R, and I bands). SPIFS is capable of exploring important scientific niches which are not currently available using existing high angular resolution techniques such as adaptive optics or speckle imaging. At the same time, the SPIFS instrument concept is relatively straightforward and feasible using existing, relatively-inexpensive technology. The finished instrument will be able to achieve better than 15 mas resolution on current telescopes. To test the technique, we have designed and fabricated a testbed instrument containing all the components necessary to prove the concept without the integral field unit, and have performed in-lab speckle stabilization.


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