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Seeing Degradation within the Anglo-Australian Telescope Dome

  • Sean G. Ryan (a1) and Peter R. Wood (a2)
Abstract

Recent seeing measurements at the Anglo-Australian Telescope (AAT) point towards the thermal characteristics of the telescope itself, in particular the temperature difference between the mirror and the dome air, as the most important factor degrading the seeing, more so than the temperature difference between the inside and outside air. We present the findings, propose clarifying experiments, and discuss possible remedies. We set the realistic target for the AAT to achieve median seeing of 1·5″ rather than the current 1·8″.

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References
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Boyle, B., & Sadler, E. 1989, AAO Newsletter No. 48 January (AAO Newsletter No. 48 January-Australian Observatory)
Gascoigne, S.C.B., Proust, K. M., & Robins, M.O. 1990, The Creation of the Anglo-Australian Observatory (Cambridge: University Press)
Gillingham, P. 1978, AAT Dome Seeing—A Progress Report (Anglo-Australian Observatory)
Gillingham, P. 1984, Advanced Technology Optical Telescopes II, SPIE Vol. 444, 165
Gillingham, P. 1993, personal communication
Lowne, C. M. 1979, MNRAS, 188, 249
Racine, R., Salmon, D., Cowley, D., & Sovka, J. 1991, PASP, 103, 1020
Ryan, S. G. 1994, Preliminary Results from AAT Thermal Measurements, 26 July-17 August 1994 (Anglo-Australian Observatory)
Sadler, E., Harrison, S., & Lee, S. 1991, AAO Observers’ Guide, AAO UM1.4 (Anglo-Australian Observatory)
ten Brummelaar, T. A., Tango, W. J., Davis, J., & Shobbrook, R. R. 1994, SPIE meeting, Kona, March 1994 (preprint)
Wood, P. R., Rodgers, A. W., & Russell, K. S. 1995, PASA, 12, 97
Wood, P. R., & Ryan, S. G. 1995, PASA, 12, 95
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Publications of the Astronomical Society of Australia
  • ISSN: 1323-3580
  • EISSN: 1448-6083
  • URL: /core/journals/publications-of-the-astronomical-society-of-australia
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