Hostname: page-component-7479d7b7d-pfhbr Total loading time: 0 Render date: 2024-07-08T19:06:54.192Z Has data issue: false hasContentIssue false
  • English
  • Français

Recovery of Intensity Information from Speckle Data

Published online by Cambridge University Press:  12 April 2016

E. K. Hege ,
E. N. Hubbard ,
W. J. Cocke ,
P. A. Strittmatter ,
S. P. Worden  and
R. R. Radick
E. K. Hege
Affiliation:
Steward Observatory, Tucson, AZ 85712
E. N. Hubbard
Affiliation:
Steward Observatory, Tucson, AZ 85712
W. J. Cocke
Affiliation:
Steward Observatory, Tucson, AZ 85712
P. A. Strittmatter
Affiliation:
Steward Observatory, Tucson, AZ 85712
S. P. Worden
Affiliation:
Steward Observatory, Tucson, AZ 85712
R. R. Radick
Affiliation:
Sacramento Peak Observatory, Sunspot, NM 88349

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The achievements of speckle interferometry in recovering diffraction limited spatial information, primarily by optical processing of photographic data, have been well summarized by McAlister in a preceeding paper. In general, the recovery of intensity information has received less attention mainly because of complications such as the need for accurate deconvolutions and noise bias corrections.

Methods for producing image power spectra (or the equivalent image autocorrelation functions) from digitally recorded speckle interferograms, as well as methods for correcting these functions for seeing effects, are described in our previous paper, Cocke, et al. in this colloquium. In this paper we discuss effects of instrumental response and photon statistics, the so-called noise bias, and procedures for correcting these effects in order to recover binary star relative intensity information from speckle interferometric data. We find for Capella δmv = 0.48.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 62: Current Techniques in Double and Multiple Star Research , May 1983 , pp. 185 - 190
Copyright
Copyright © Lowell Observatory 1983

References

1. Fienup, J. R., Feldkamp, G. B. (1980) Proc. S.P.I.E., 243, 95.Google Scholar
2. Evans, D. S. (1982) In Proc. IAU Collog. 62, Flagstaff, 1981 ed. Harrington, R. S..Google Scholar
3. Frost, R. L., Rushforth, C. K. (1979) Private communication.Google Scholar
4. Hubbard, E. N., Hege, E. K., Reed, M. A., Strittmatter, P. A., Worden, S. P., (1979) Astron. J., 84, 1437.CrossRefGoogle Scholar
5. Hege, E. K., Hubbard, E. N., Strittmatter, P. A. (1980) Proc. S.P.I.E., 264, 29.Google Scholar
6. Koechlin, L., Bonneau, D. and Vakili, F. (1979) Astron. Astrophys. 80, L13.Google Scholar
7. Wright, K. O. (1954) Astrophys. J., 119, 471.Google Scholar