| Autor: |
Christopher D. Koresko, K. Summers, K. Tsubota, Christopher G. Paine, Andrew Cooper, Sam Crawford, B. Smith, S. Ragland, A. Booth, E. Wetherell, Bertrand Mennesson, Jean Garcia-Gathright, Drew Medeiros, Rafael Millan-Gabet, M. Mark Colavita, R. Ligon, W. Dahl, C. Felizardo, Rachel Akeson, T. Panteleeva, Peter Wizinowich, C. Tyau, E. Appleby, J. Gathright, D. Morrison, B. Parvin, J. Herstein, Eugene Serabyn, B. C. Berkey, Julien Woillez, M. Hrynevych |
| Přispěvatelé: |
Schöller, Markus, Danchi, William C., Delplancke, Françoise |
| Jazyk: |
angličtina |
| Rok vydání: |
2008 |
| Předmět: |
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| Popis: |
The Keck Interferometer combines the two 10m diameter Ke ck 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 ev olved 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. Keywords: stellar interferometry, visibility measurements, operational efficiency, spectro-interferometry, phase referencing, pre-main sequence binaries |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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