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Definition of Keck Interferometer Level 1 data FITS files R. Arson, A. Baden Michelson Science Center KIV2 L1 Version 2.1 email comments and questions to: LA IPA.Caltech.edu March 30, 2005 1. Introduction

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1. The Keck interferometer is a ground-based optical interferometer located on Maunakea in Hawaii. It is specifically designed to combine the light from two of the world's largest telescopes, the twin Keck telescopes, to achieve high-resolution imaging and spectroscopy.
2. The interferometer consists of several key components, including beam combiners, delay lines, and a fringe tracker. The beam combiners combine the light collected by the individual telescopes and direct it towards the scientific instruments. The delay lines compensate for the differences in the path lengths of the light between the telescopes, allowing them to interfere constructively. The fringe tracker measures and maintains the coherence of the combined light.
3. The Keck interferometer enables astronomers to achieve angular resolution equivalent to that of a single telescope with a diameter equal to the separation between the Keck telescopes, which is approximately 85 meters. This greatly enhances the resolving power and sensitivity of observations, allowing astronomers to study a wide range of astronomical objects, including exoplanets, young stars, and active galactic nuclei.
4. The Keck interferometer is primarily used by astronomers and astrophysicists who are interested in studying the fine details and structure of celestial objects. Its high resolution and improved sensitivity make it particularly useful for investigating complex systems and phenomena that require detailed observations.

Who needs the definition of Keck interferometer?

1. Researchers and scientists working in the field of astrophysics and astronomy would benefit from understanding the definition of the Keck interferometer. It provides them with information about the instrument's capabilities, technologies used, and the scientific objectives it aims to achieve.
2. Students pursuing studies in astronomy or related disciplines may also require the definition of the Keck interferometer to gain a better understanding of advanced observational techniques and tools used in modern astronomy.
3. Individuals interested in staying updated with the latest developments in observational astronomy can benefit from knowing about the Keck interferometer. The instrument has contributed significantly to our understanding of the universe and has produced groundbreaking scientific discoveries.

In conclusion, learning about the Keck interferometer's definition and its significance is beneficial for researchers, students, and anyone interested in the field of astronomy and astrophysics.

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