Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.4109p&link_type=abstract
American Astronomical Society, 201st AAS Meeting, #41.09; Bulletin of the American Astronomical Society, Vol. 34, p.1165
Astronomy and Astrophysics
Astronomy
Scientific paper
The effective wavelength determination is the one of the key calibration issues for the Space Interferometry Mission (SIM). In order to obtain micro-arcsecond accuracy in astrometry, it is critical to have accurate wavelengths for the multiple spectral channels because the wavelength errors directly affect the fringe phase estimates. However, spectral response of SIM is a complicated and changing function, which is related to synthesized spectral response of mirrors, prism and detector, and is related to the thermal and mechanical changes in optical systems. In particular, the significant biases of effective wavelength measurements are a function of colors of different stars. MAM, a Micro-Arcsecond Metrology system, provides a testbed for SIM. Measurement data from MAM are used for study of systematic biases and measurement errors in wavelength calibration. At present three approaches are developed for wavelength calibrations in MAM. The latest results and accuracy comparisons are described in detail. This work is supported under contract with the National Aeronautics and Space Administration.
Pan Xiaochuan
Worthey Guy
No associations
LandOfFree
Analysis and Calibration of Effective Wavelengths in SIM 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 Analysis and Calibration of Effective Wavelengths in SIM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analysis and Calibration of Effective Wavelengths in SIM will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1889929