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Title: Non-axisymmetric Aberration Patterns from Wide-field Telescopes Using Spin-weighted Zernike Polynomials

Journal Article · · Publications of the Astronomical Society of the Pacific
 [1]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
+ Show Author Affiliations

If the optical system of a telescope is perturbed from rotational symmetry, the Zernike wavefront aberration coefficients describing that system can be expressed as a function of position in the focal plane using spin-weighted Zernike polynomials. Methodologies are presented to derive these polynomials to arbitrary order. This methodology is applied to aberration patterns produced by a misaligned Ritchey Chretian telescope and to distortion patterns at the focal plane of the DESI optical corrector, where it is shown to provide a more efficient description of distortion than conventional expansions.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
DESI
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1409339
Report Number(s):
FERMILAB-PUB-17-508-AE-CD; arXiv:1711.03916; 1637059
Journal Information:
Publications of the Astronomical Society of the Pacific, Vol. 130, Issue 986; ISSN 0004-6280
Publisher:
Astronomical Society of the PacificCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

Figures / Tables (10)

Figure 1(p. 3)figure Figure 1
Figure 2(p. 4)figure Figure 2
Figure 3(p. 10)figure Figure 3
Table 1(p. 10)table Table 1
Table 2(p. 11)table Table 2
Figure 4(p. 12)figure Figure 4
Table 3(p. 12)table Table 3
Figure 5(p. 13)figure Figure 5
Table 4(p. 14)table Table 4
Table 5(p. 16)table Table 5

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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
methods analytical
telescopes