Optical vortex coronagraphs on ground-based telescopes

Details Optical vortex coronagraphs on ground-based telescopes Optical vortex coronagraphs on ground-based telescopes

2007-09-03

arxiv.org/abs/0709.0153v1

Astronomy and Astrophysics

Astrophysics

32 pages, 13 figures

Scientific paper

10.1111/j.1365-2966.2007.12744.x

The optical vortex coronagraph is potentially a remarkably effective device, at least for an ideal unobstructed telescope. Most ground-based telescopes however suffer from central obscuration and also have to operate through the aberrations of the turbulent atmosphere. This note analyzes the performance of the optical vortex in these circumstances and compares to some other designs, showing that it performs similarly in this situation. There is a large class of coronagraphs of this general type, and choosing between them in particular applications depends on details of performance at small off-axis distances and uniformity of response in the focal plane. Issues of manufacturability to the necessary tolerances are also likely to be important.

Affiliated with

Also associated with

No associations

Rating

Optical vortex coronagraphs on ground-based telescopes 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 Optical vortex coronagraphs on ground-based telescopes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical vortex coronagraphs on ground-based telescopes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-467878