Recent progress at the Keck Interferometer: operations and V2 science

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

doi:10.1117/12.788070

28 July 2008 Recent progress at the Keck Interferometer: operations and V² science

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

Author Affiliations +

Proceedings Volume 7013, Optical and Infrared Interferometry; 70130B (2008) https://doi.org/10.1117/12.788070
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

The Keck Interferometer combines the two 10m diameter Keck telescopes for near-infrared fringe visibility, and mid-infrared nulling observations. We report on recent progress with an emphasis on new visibility observing capabilities, operations improvements for visibility and nulling, and on recent visibility science. New visibility observing capabilities include a grism spectrometer for higher spectral resolution. Recent improvements include a new AO output dichroic for increased infrared light throughput, and the installation of new wave-front controllers on both Keck telescopes. We also report on recent visibility results in several areas including (1) young stars and their circumstellar disks, (2) pre-main sequence star masses, and (3) Circumstellar environment of evolved stars. Details on nuller instrument and nuller science results, and the ASTRA phase referencing and astrometry upgrade, are presented in more detail elsewhere in this conference.

Citation Download Citation

S. Ragland, P. Wizinowich, R. Akeson, M. Colavita, E. Appleby, B. Berkey, A. Booth, A. Cooper, S. Crawford, W. Dahl, C. Felizardo, J. Garcia-Gathright, J. Herstein, M. Hrynevych, C. Koresko, R. Ligon, D. Medeiros, B. Mennesson, R. Millan-Gabet, D. Morrison, C. Paine, B. Parvin, T. Panteleeva, E. Serabyn, B. Smith, K. Summers, K. Tsubota, C. Tyau, E. Wetherell, and J. Woillez "Recent progress at the Keck Interferometer: operations and V² science", Proc. SPIE 7013, Optical and Infrared Interferometry, 70130B (28 July 2008); https://doi.org/10.1117/12.788070

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available