Chromaticity in all-reflective telescopes for astrometry

Details Chromaticity in all-reflective telescopes for astrometry Chromaticity in all-reflective telescopes for astrometry

2005-11-18

arxiv.org/abs/astro-ph/0511572v2

Astronomy and Astrophysics

Astrophysics

10 pages, 8 figures

Scientific paper

10.1051/0004-6361:20054180

Chromatic effects are usually associated with refractive optics, so reflective telescopes are assumed to be free from them. We show that all-reflective optics still bears significant levels of such perturbations, which is especially critical to modern micro-arcsecond astrometric experiments. We analyze the image formation and measurement process to derive a precise definition of the chromatic variation of the image position, and we evaluate the key aspects of optical design with respect to chromaticity. The fundamental requirement related to chromaticity is the symmetry of the optical design and of the wavefront errors. Finally, we address some optical engineering issues, such as manufacturing and alignment, providing recommendations to minimize the degradation that chromaticity introduces into astrometry.

Affiliated with

Also associated with

No associations

Rating

Chromaticity in all-reflective telescopes for astrometry 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 Chromaticity in all-reflective telescopes for astrometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chromaticity in all-reflective telescopes for astrometry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-710686