High-contrast observations with slicer-based integral field spectrographs 2: experimental tests

Details High-contrast observations with slicer-based integral field spectrographs 2: experimental tests High-contrast observations with slicer-based integral field spectrographs 2: experimental tests

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7735e.246s&link_type=abstract

Ground-based and Airborne Instrumentation for Astronomy III. Edited by McLean, Ian S.; Ramsay, Suzanne K.; Takami, Hideki. Pro

Astronomy and Astrophysics

Astronomy

Scientific paper

As part of the Phase A study for the EPICS instrument, we investigate if there are any contrast limitations imposed by the choice of the integral field spectrograph (IFS) technology, and if so, to determine the contrast limits applicable to each technology. In this document we investigate (through production of a prototype and actual laboratory tests) the contrast limitations inherent in a slicer based IFS. Using an experimental set-up that generates speckles at the input to a slicer based integral field spectrograph, we have conclusively demonstrated that a slicer based IFS (that has not been specifically designed for high contrast observations) does NOT limit the contrast achieved by a planet finding instrument at the level of at least one part in 250 per spectral channel at R~800. This limit is imposed by the limited source intensity available for the measurements made with the test bed's current setup and is to be improved upon in the near future. This level of speckle noise rejection already satisfies the top level requirements of the EPICS instrument.

Affiliated with

Also associated with

No associations

Rating

High-contrast observations with slicer-based integral field spectrographs 2: experimental tests does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with High-contrast observations with slicer-based integral field spectrographs 2: experimental tests, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-contrast observations with slicer-based integral field spectrographs 2: experimental tests will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1382080