Keck Interferometer nuller update

M. M. Colavita; E. Serabyn; A. J. Booth; S. L. Crawford; J. I. Garcia-Gathright; E. R. Ligon; B. L. Mennesson; C. G. Paine; P. L. Wizinowich; S. Ragland; E. C. Appleby; B. C. Berkey; A. Cooper; W. Dahl; J. T. Gathright; M. A. Hrynevych; D. W. Medeiros; D. Morrison; T. Panteleeva; B. Smith; K. R. Summers; K. Tsubota; C. Tyau; E. Wetherell; J. M. Woillez; R. L. Akeson; R. Millan-Gabet; C. Felizardo; C. D. Koresko; J. S. Herstein

doi:10.1117/12.789476

28 July 2008 Keck Interferometer nuller update

M. M. Colavita, E. Serabyn, A. J. Booth, S. L. Crawford, J. I. Garcia-Gathright, E. R. Ligon, B. L. Mennesson, C. G. Paine, P. L. Wizinowich, S. Ragland, E. C. Appleby, B. C. Berkey, A. Cooper, W. Dahl, J. T. Gathright, M. A. Hrynevych, D. W. Medeiros, D. Morrison, T. Panteleeva, B. Smith, K. R. Summers, K. Tsubota, C. Tyau, E. Wetherell, J. M. Woillez, R. L. Akeson, R. Millan-Gabet, C. Felizardo, C. D. Koresko, J. S. Herstein

Author Affiliations +

Proceedings Volume 7013, Optical and Infrared Interferometry; 70130A (2008) https://doi.org/10.1117/12.789476
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

The Keck Interferometer combines the two 10 m Keck telescopes as a long baseline interferometer, funded by NASA, as a joint development among the Jet Propulsion Laboratory, the W. M. Keck Observatory, and the Michelson Science Center. Since 2004, it has offered an H- and K-band fringe visibility mode through the Keck TAC process. Recently this mode has been upgraded with the addition of a grism for higher spectral resolution. The 10 um nulling mode, for which first nulling data were collected in 2005, completed the bulk of its engineering development in 2007. At the end of 2007, three teams were chosen in response to a nuller key science call to perform a survey of nearby stars for exozodiacal dust. This key science observation program began in Feb. 2008. Under NSF funding, Keck Observatory is leading development of ASTRA, a project to add dual-star capability for high sensitivity observations and dual-star astrometry. We review recent activity at the Keck Interferometer, with an emphasis on the nuller development.

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M. M. Colavita, E. Serabyn, A. J. Booth, S. L. Crawford, J. I. Garcia-Gathright, E. R. Ligon, B. L. Mennesson, C. G. Paine, P. L. Wizinowich, S. Ragland, E. C. Appleby, B. C. Berkey, A. Cooper, W. Dahl, J. T. Gathright, M. A. Hrynevych, D. W. Medeiros, D. Morrison, T. Panteleeva, B. Smith, K. R. Summers, K. Tsubota, C. Tyau, E. Wetherell, J. M. Woillez, R. L. Akeson, R. Millan-Gabet, C. Felizardo, C. D. Koresko, and J. S. Herstein "Keck Interferometer nuller update", Proc. SPIE 7013, Optical and Infrared Interferometry, 70130A (28 July 2008); https://doi.org/10.1117/12.789476

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