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NASA NTRS · 20210001921

The Keck interferometer autoaligner

Smythe, R.·Reder, L.·Palmer, D.·Moore, J.·Ligon, R.·Colavita, M.·Belle, G. van
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Abstract

A key thrust of NASA's Origins program is the development of astronomical interferometers. Pursuing this goal in a cost-effective and expedient manner from the ground has led NASA to develop the Keck Interferometer, which saw first fringes between the twin 10m Keck telescopes in March of 2001.

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Smythe, R., Reder, L., Palmer, D., Moore, J., Ligon, R., Colavita, M., Belle, G. van. 2002-08-22. The Keck interferometer autoaligner. https://ntrs.nasa.gov/citations/20210001921

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NASA NTRS2002

Keck interferometer update

The Keck Interferometer is a NASA-funded joint development between JPL and the W. M. Keck Observatory. The first phase of the project combines the two 10-m Keck Telescopes for high sensitivity near-infrared fringe visibility measurements, nulling interferometry at 10 pm to measure the quantity of exozodiacal emission around nearby stars, and differential-phase measurements to detect hot Jupiters by their direct emission. First fringes with the interferometer were obtained in March 200 1 using the two Kecks with their A 0 systems. Subsequent engineering work been focusedtoward the visibility mode in the areas of improving sensitivity, increasing automation, and adding functionality, in preparation for the high-precision modes. Recently four shared-risk teams were selected by NASA to participate in early science observations, and initial shared-risk science observations have begun.

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