Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-23T15:33:33.088Z Has data issue: false hasContentIssue false
  • English
  • Français

Digital Speckle Interferometry to Measure the Angular Diameters Of Faint Objects

Published online by Cambridge University Press:  02 August 2016

Gene Hubbard ,
Mike Reed ,
Peter Strittmatter ,
Keith Hege  and
Simon P. Worden
Gene Hubbard
Affiliation:
Steward Observatory, University of Arizona, Tucson, AZ 85721
Mike Reed
Affiliation:
Steward Observatory, University of Arizona, Tucson, AZ 85721
Peter Strittmatter
Affiliation:
Steward Observatory, University of Arizona, Tucson, AZ 85721
Keith Hege
Affiliation:
Steward Observatory, University of Arizona, Tucson, AZ 85721
Simon P. Worden
Affiliation:
Air Force Geophysics Laboratory, Sacramento Peak Observatory, Sunspot, NM 88349

Abstract

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.

We have developed a digital speckle camera for use on the University of Arizona 90-inch telescope. This camera uses a CID detector to provide photon locations in an image, or an analog image for brighter objects. We have used this system to observe Saturn's satellites Rhea and Iapetus. Using a correlation speckle technique, we have determined the angular diameter of these objects to be 1487 ± 40 km for Rhea, and 1200 ± 132 km for Iapetus.

Type
The Scientific Programme
Information
International Astronomical Union Colloquium , Volume 50: High Angular Resolution Stellar Interferometry , January 1979 , pp. 28-1 - 28-8
Copyright
Copyright © 1979

References

1) Labeyrie, A., Astr. Ap., 6, 85, 1970.Google Scholar
2) Gezari, D.Y., Labeyrie, A. and Stacknik, R.V., Ap. J. (letters), 173, L1, 1972.Google Scholar
3) Dainty, J.C., “Laser speckle and related phenomena”, ed. Dainty, J.C., (Berlin, Springer-Verlag) p255, 1975.Google Scholar
4) Worden, S.P., “Vistas in astronomy”, ed. Beer, A., 20, 301, 1977.Google Scholar
5) Worden, S.P, Stein, M.K., Schmidt, G.D. and Angel, J.R.P., Icarus, 32, 450, 1977.Google Scholar
6) Welter, G.L. and Worden, S.P, J.O.S.A., in press, 1978.Google Scholar
7) Strittmatter, P.A. and Woolf, N.J., Air Force Geophysics Laboratory final report on project ILIR7AAA, “Image Reconstruction Using Large Astronomical Telescopes”, 1978.Google Scholar
8) McAlister, H.A., Ap. J., 212, 459, 1977.Google Scholar
9) Elliot, J.L., Veverka, J. and Goguen, J., Icarus, 26, 387, 1975.CrossRefGoogle Scholar