Abstract

A special reflecting Schmidt telescope is used to observe celestial objects. The telescope has an aperture of 4 m, f ratio of 5, and a 5° field of view. Its optical axis is fixed and tilted 25° to the horizontal that runs from south to north. The celestial objects were observed for 1.5 h as they passed through the meridian. The shape of the reflecting Schmidt plate has to be changed with each different declination δ and in the tracking process. This is achieved with active optics. The sky area to be observed is −10° ≤ δ ≤ +90°. There are plans to place ~4000 optical fibers on the telescope focal surface that will lead to a dozen spectrographs.

© 1996 Optical Society of America

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References

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  1. J. M. Hill, J. R. P. Angel, J. S. Scott, D. Lindley, P. Hintzen, “Multiple object spectroscopy: the Medusa spectrograph,” Astrophys. J. 242, L69–L72 (1980).
    [CrossRef]
  2. C. G. Wynne, “Wide field imaging,” Mon. Not. R. Astron. Soc. 236, 47–50 (1989).
  3. W. Xu, Y. Wang, “Three types 2-degree field compensating atmospheric dispersion correctors for prime focus,” Acta Astron. Sin. 34, 165–172 (1993).
  4. D. J. Jones, “Wide-field prime focus corrector for the Anglo-Australian telescope,” Appl. Opt. 33, 7362–7366 (1994).
    [CrossRef] [PubMed]
  5. I. S. Bowen, A. H. Vaughan, “The optical design of the 40-in. telescope and of the Irenee DuPont telescope at Las Campanas Observatory, Chile,” Appl. Opt. 12, 1430–1434 (1973).
    [CrossRef] [PubMed]
  6. R. V. Willstrop, “The Mersenne–Schmidt: a three-mirror survey telescope,” Mon. Not. R. Astron. Soc. 210, 597–609 (1984).
  7. L. W. Ramsey, D. W. Weedman, F. B. Ray, C. Sneden, “A progress report on the spectroscopic survey telescope,” in Proceedings of the ESO Conference on Very Large Telescopes and Their Instrumentation, M.-H. Ulrich, ed. (European Southern Observatory, Garching, Germany, 1988), pp. 119–126.
  8. S. Wang, D. Su, “A new configuration for spectroscopic survey telescope,” in Proceedings of the ESO Conference on Progress in Telescope and Instrumentation Technologies, M.-H. Ulrich, ed. (European Southern Observatory, Garching, Germany, 1992), pp. 105–108.
  9. F. G. Watson, Q. A. Parker, “Wide-field multi-fiber spectroscopy with FLAIR II,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 65–73 (1994).
  10. R. N. Wilson, F. Franza, L. Noethe, “Active optics I. A system for optimizing the optical quality and reducing the costs of large telescopes,” J. Mod. Opt. 34, 485–509 (1987).
    [CrossRef]
  11. L. Noethe, F. Franza, P. Giordano, R. N. Wilson, O. Citterio, G. Conti, E. Mattaini, “Active optics II. Results of an experiment with a thin 1-m test mirror,” J. Mod. Opt. 35, 1427–1457 (1988).
    [CrossRef]
  12. D. Su, S. Jiang, W. Zou, S. Yang, S. Yang, H. Zhang, Qi. Zhu, “Experiment system of thin-mirror active optics,” in Advanced Technology Optical Telescopes V, L. M. Stepp, ed., Proc. SPIE2199, 609–621 (1994).
  13. D. Su, C. Cao, M. Liang, “Some new ideas of the optical system of large telescopes,” in Advanced Technology Optical Telescopes III, L. D. Barr, ed., Proc. SPIE628, 498–503 (1986).
  14. G. Lemaitre, “Optical design with the Schmidt concept,” in Astronomy with Schmidt-type Telescopes: Proceedings of the 78th Colloquium of the International Astronomical Union, Asiago, Italy, August 30–September 2, 1983, M. Capaccioli, ed. (Kluwer, Dordrecht, The Netherlands, 1983), pp. 533–548.
  15. I. R. Parry, I. J. Lewis, R. M. Sharples, G. N. Dodsworth, J. Webster, D. W. Gellatly, L. R. Jones, F. G. Watson, “Autofib-2 An automated fiber positioner for the prime focus of the William Herschel telescope,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 125–133 (1994).
  16. S. Phillipps, Q. A. Parker, “Galaxy surface photometry with Kodak Technical Pan film,” Mon. Not. R. Astron. Soc. 265, 385–394 (1993).
  17. M. White, D. Scott, J. Silk, “Anisotropies in the cosmic microwave background,” Ann. Rev. Astron. Astrophys. 32, 319–370 (1994).
    [CrossRef]
  18. T. S. Mast, J. E. Nelson, “Figure control for a full segmented telescope mirror,” Appl. Opt. 21, 2631–2641 (1982).
    [CrossRef] [PubMed]

1994 (2)

D. J. Jones, “Wide-field prime focus corrector for the Anglo-Australian telescope,” Appl. Opt. 33, 7362–7366 (1994).
[CrossRef] [PubMed]

M. White, D. Scott, J. Silk, “Anisotropies in the cosmic microwave background,” Ann. Rev. Astron. Astrophys. 32, 319–370 (1994).
[CrossRef]

1993 (2)

S. Phillipps, Q. A. Parker, “Galaxy surface photometry with Kodak Technical Pan film,” Mon. Not. R. Astron. Soc. 265, 385–394 (1993).

W. Xu, Y. Wang, “Three types 2-degree field compensating atmospheric dispersion correctors for prime focus,” Acta Astron. Sin. 34, 165–172 (1993).

1989 (1)

C. G. Wynne, “Wide field imaging,” Mon. Not. R. Astron. Soc. 236, 47–50 (1989).

1988 (1)

L. Noethe, F. Franza, P. Giordano, R. N. Wilson, O. Citterio, G. Conti, E. Mattaini, “Active optics II. Results of an experiment with a thin 1-m test mirror,” J. Mod. Opt. 35, 1427–1457 (1988).
[CrossRef]

1987 (1)

R. N. Wilson, F. Franza, L. Noethe, “Active optics I. A system for optimizing the optical quality and reducing the costs of large telescopes,” J. Mod. Opt. 34, 485–509 (1987).
[CrossRef]

1984 (1)

R. V. Willstrop, “The Mersenne–Schmidt: a three-mirror survey telescope,” Mon. Not. R. Astron. Soc. 210, 597–609 (1984).

1982 (1)

1980 (1)

J. M. Hill, J. R. P. Angel, J. S. Scott, D. Lindley, P. Hintzen, “Multiple object spectroscopy: the Medusa spectrograph,” Astrophys. J. 242, L69–L72 (1980).
[CrossRef]

1973 (1)

Angel, J. R. P.

J. M. Hill, J. R. P. Angel, J. S. Scott, D. Lindley, P. Hintzen, “Multiple object spectroscopy: the Medusa spectrograph,” Astrophys. J. 242, L69–L72 (1980).
[CrossRef]

Bowen, I. S.

Cao, C.

D. Su, C. Cao, M. Liang, “Some new ideas of the optical system of large telescopes,” in Advanced Technology Optical Telescopes III, L. D. Barr, ed., Proc. SPIE628, 498–503 (1986).

Citterio, O.

L. Noethe, F. Franza, P. Giordano, R. N. Wilson, O. Citterio, G. Conti, E. Mattaini, “Active optics II. Results of an experiment with a thin 1-m test mirror,” J. Mod. Opt. 35, 1427–1457 (1988).
[CrossRef]

Conti, G.

L. Noethe, F. Franza, P. Giordano, R. N. Wilson, O. Citterio, G. Conti, E. Mattaini, “Active optics II. Results of an experiment with a thin 1-m test mirror,” J. Mod. Opt. 35, 1427–1457 (1988).
[CrossRef]

Dodsworth, G. N.

I. R. Parry, I. J. Lewis, R. M. Sharples, G. N. Dodsworth, J. Webster, D. W. Gellatly, L. R. Jones, F. G. Watson, “Autofib-2 An automated fiber positioner for the prime focus of the William Herschel telescope,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 125–133 (1994).

Franza, F.

L. Noethe, F. Franza, P. Giordano, R. N. Wilson, O. Citterio, G. Conti, E. Mattaini, “Active optics II. Results of an experiment with a thin 1-m test mirror,” J. Mod. Opt. 35, 1427–1457 (1988).
[CrossRef]

R. N. Wilson, F. Franza, L. Noethe, “Active optics I. A system for optimizing the optical quality and reducing the costs of large telescopes,” J. Mod. Opt. 34, 485–509 (1987).
[CrossRef]

Gellatly, D. W.

I. R. Parry, I. J. Lewis, R. M. Sharples, G. N. Dodsworth, J. Webster, D. W. Gellatly, L. R. Jones, F. G. Watson, “Autofib-2 An automated fiber positioner for the prime focus of the William Herschel telescope,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 125–133 (1994).

Giordano, P.

L. Noethe, F. Franza, P. Giordano, R. N. Wilson, O. Citterio, G. Conti, E. Mattaini, “Active optics II. Results of an experiment with a thin 1-m test mirror,” J. Mod. Opt. 35, 1427–1457 (1988).
[CrossRef]

Hill, J. M.

J. M. Hill, J. R. P. Angel, J. S. Scott, D. Lindley, P. Hintzen, “Multiple object spectroscopy: the Medusa spectrograph,” Astrophys. J. 242, L69–L72 (1980).
[CrossRef]

Hintzen, P.

J. M. Hill, J. R. P. Angel, J. S. Scott, D. Lindley, P. Hintzen, “Multiple object spectroscopy: the Medusa spectrograph,” Astrophys. J. 242, L69–L72 (1980).
[CrossRef]

Jiang, S.

D. Su, S. Jiang, W. Zou, S. Yang, S. Yang, H. Zhang, Qi. Zhu, “Experiment system of thin-mirror active optics,” in Advanced Technology Optical Telescopes V, L. M. Stepp, ed., Proc. SPIE2199, 609–621 (1994).

Jones, D. J.

Jones, L. R.

I. R. Parry, I. J. Lewis, R. M. Sharples, G. N. Dodsworth, J. Webster, D. W. Gellatly, L. R. Jones, F. G. Watson, “Autofib-2 An automated fiber positioner for the prime focus of the William Herschel telescope,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 125–133 (1994).

Lemaitre, G.

G. Lemaitre, “Optical design with the Schmidt concept,” in Astronomy with Schmidt-type Telescopes: Proceedings of the 78th Colloquium of the International Astronomical Union, Asiago, Italy, August 30–September 2, 1983, M. Capaccioli, ed. (Kluwer, Dordrecht, The Netherlands, 1983), pp. 533–548.

Lewis, I. J.

I. R. Parry, I. J. Lewis, R. M. Sharples, G. N. Dodsworth, J. Webster, D. W. Gellatly, L. R. Jones, F. G. Watson, “Autofib-2 An automated fiber positioner for the prime focus of the William Herschel telescope,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 125–133 (1994).

Liang, M.

D. Su, C. Cao, M. Liang, “Some new ideas of the optical system of large telescopes,” in Advanced Technology Optical Telescopes III, L. D. Barr, ed., Proc. SPIE628, 498–503 (1986).

Lindley, D.

J. M. Hill, J. R. P. Angel, J. S. Scott, D. Lindley, P. Hintzen, “Multiple object spectroscopy: the Medusa spectrograph,” Astrophys. J. 242, L69–L72 (1980).
[CrossRef]

Mast, T. S.

Mattaini, E.

L. Noethe, F. Franza, P. Giordano, R. N. Wilson, O. Citterio, G. Conti, E. Mattaini, “Active optics II. Results of an experiment with a thin 1-m test mirror,” J. Mod. Opt. 35, 1427–1457 (1988).
[CrossRef]

Nelson, J. E.

Noethe, L.

L. Noethe, F. Franza, P. Giordano, R. N. Wilson, O. Citterio, G. Conti, E. Mattaini, “Active optics II. Results of an experiment with a thin 1-m test mirror,” J. Mod. Opt. 35, 1427–1457 (1988).
[CrossRef]

R. N. Wilson, F. Franza, L. Noethe, “Active optics I. A system for optimizing the optical quality and reducing the costs of large telescopes,” J. Mod. Opt. 34, 485–509 (1987).
[CrossRef]

Parker, Q. A.

S. Phillipps, Q. A. Parker, “Galaxy surface photometry with Kodak Technical Pan film,” Mon. Not. R. Astron. Soc. 265, 385–394 (1993).

F. G. Watson, Q. A. Parker, “Wide-field multi-fiber spectroscopy with FLAIR II,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 65–73 (1994).

Parry, I. R.

I. R. Parry, I. J. Lewis, R. M. Sharples, G. N. Dodsworth, J. Webster, D. W. Gellatly, L. R. Jones, F. G. Watson, “Autofib-2 An automated fiber positioner for the prime focus of the William Herschel telescope,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 125–133 (1994).

Phillipps, S.

S. Phillipps, Q. A. Parker, “Galaxy surface photometry with Kodak Technical Pan film,” Mon. Not. R. Astron. Soc. 265, 385–394 (1993).

Ramsey, L. W.

L. W. Ramsey, D. W. Weedman, F. B. Ray, C. Sneden, “A progress report on the spectroscopic survey telescope,” in Proceedings of the ESO Conference on Very Large Telescopes and Their Instrumentation, M.-H. Ulrich, ed. (European Southern Observatory, Garching, Germany, 1988), pp. 119–126.

Ray, F. B.

L. W. Ramsey, D. W. Weedman, F. B. Ray, C. Sneden, “A progress report on the spectroscopic survey telescope,” in Proceedings of the ESO Conference on Very Large Telescopes and Their Instrumentation, M.-H. Ulrich, ed. (European Southern Observatory, Garching, Germany, 1988), pp. 119–126.

Scott, D.

M. White, D. Scott, J. Silk, “Anisotropies in the cosmic microwave background,” Ann. Rev. Astron. Astrophys. 32, 319–370 (1994).
[CrossRef]

Scott, J. S.

J. M. Hill, J. R. P. Angel, J. S. Scott, D. Lindley, P. Hintzen, “Multiple object spectroscopy: the Medusa spectrograph,” Astrophys. J. 242, L69–L72 (1980).
[CrossRef]

Sharples, R. M.

I. R. Parry, I. J. Lewis, R. M. Sharples, G. N. Dodsworth, J. Webster, D. W. Gellatly, L. R. Jones, F. G. Watson, “Autofib-2 An automated fiber positioner for the prime focus of the William Herschel telescope,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 125–133 (1994).

Silk, J.

M. White, D. Scott, J. Silk, “Anisotropies in the cosmic microwave background,” Ann. Rev. Astron. Astrophys. 32, 319–370 (1994).
[CrossRef]

Sneden, C.

L. W. Ramsey, D. W. Weedman, F. B. Ray, C. Sneden, “A progress report on the spectroscopic survey telescope,” in Proceedings of the ESO Conference on Very Large Telescopes and Their Instrumentation, M.-H. Ulrich, ed. (European Southern Observatory, Garching, Germany, 1988), pp. 119–126.

Su, D.

S. Wang, D. Su, “A new configuration for spectroscopic survey telescope,” in Proceedings of the ESO Conference on Progress in Telescope and Instrumentation Technologies, M.-H. Ulrich, ed. (European Southern Observatory, Garching, Germany, 1992), pp. 105–108.

D. Su, S. Jiang, W. Zou, S. Yang, S. Yang, H. Zhang, Qi. Zhu, “Experiment system of thin-mirror active optics,” in Advanced Technology Optical Telescopes V, L. M. Stepp, ed., Proc. SPIE2199, 609–621 (1994).

D. Su, C. Cao, M. Liang, “Some new ideas of the optical system of large telescopes,” in Advanced Technology Optical Telescopes III, L. D. Barr, ed., Proc. SPIE628, 498–503 (1986).

Vaughan, A. H.

Wang, S.

S. Wang, D. Su, “A new configuration for spectroscopic survey telescope,” in Proceedings of the ESO Conference on Progress in Telescope and Instrumentation Technologies, M.-H. Ulrich, ed. (European Southern Observatory, Garching, Germany, 1992), pp. 105–108.

Wang, Y.

W. Xu, Y. Wang, “Three types 2-degree field compensating atmospheric dispersion correctors for prime focus,” Acta Astron. Sin. 34, 165–172 (1993).

Watson, F. G.

F. G. Watson, Q. A. Parker, “Wide-field multi-fiber spectroscopy with FLAIR II,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 65–73 (1994).

I. R. Parry, I. J. Lewis, R. M. Sharples, G. N. Dodsworth, J. Webster, D. W. Gellatly, L. R. Jones, F. G. Watson, “Autofib-2 An automated fiber positioner for the prime focus of the William Herschel telescope,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 125–133 (1994).

Webster, J.

I. R. Parry, I. J. Lewis, R. M. Sharples, G. N. Dodsworth, J. Webster, D. W. Gellatly, L. R. Jones, F. G. Watson, “Autofib-2 An automated fiber positioner for the prime focus of the William Herschel telescope,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 125–133 (1994).

Weedman, D. W.

L. W. Ramsey, D. W. Weedman, F. B. Ray, C. Sneden, “A progress report on the spectroscopic survey telescope,” in Proceedings of the ESO Conference on Very Large Telescopes and Their Instrumentation, M.-H. Ulrich, ed. (European Southern Observatory, Garching, Germany, 1988), pp. 119–126.

White, M.

M. White, D. Scott, J. Silk, “Anisotropies in the cosmic microwave background,” Ann. Rev. Astron. Astrophys. 32, 319–370 (1994).
[CrossRef]

Willstrop, R. V.

R. V. Willstrop, “The Mersenne–Schmidt: a three-mirror survey telescope,” Mon. Not. R. Astron. Soc. 210, 597–609 (1984).

Wilson, R. N.

L. Noethe, F. Franza, P. Giordano, R. N. Wilson, O. Citterio, G. Conti, E. Mattaini, “Active optics II. Results of an experiment with a thin 1-m test mirror,” J. Mod. Opt. 35, 1427–1457 (1988).
[CrossRef]

R. N. Wilson, F. Franza, L. Noethe, “Active optics I. A system for optimizing the optical quality and reducing the costs of large telescopes,” J. Mod. Opt. 34, 485–509 (1987).
[CrossRef]

Wynne, C. G.

C. G. Wynne, “Wide field imaging,” Mon. Not. R. Astron. Soc. 236, 47–50 (1989).

Xu, W.

W. Xu, Y. Wang, “Three types 2-degree field compensating atmospheric dispersion correctors for prime focus,” Acta Astron. Sin. 34, 165–172 (1993).

Yang, S.

D. Su, S. Jiang, W. Zou, S. Yang, S. Yang, H. Zhang, Qi. Zhu, “Experiment system of thin-mirror active optics,” in Advanced Technology Optical Telescopes V, L. M. Stepp, ed., Proc. SPIE2199, 609–621 (1994).

D. Su, S. Jiang, W. Zou, S. Yang, S. Yang, H. Zhang, Qi. Zhu, “Experiment system of thin-mirror active optics,” in Advanced Technology Optical Telescopes V, L. M. Stepp, ed., Proc. SPIE2199, 609–621 (1994).

Zhang, H.

D. Su, S. Jiang, W. Zou, S. Yang, S. Yang, H. Zhang, Qi. Zhu, “Experiment system of thin-mirror active optics,” in Advanced Technology Optical Telescopes V, L. M. Stepp, ed., Proc. SPIE2199, 609–621 (1994).

Zhu, Qi.

D. Su, S. Jiang, W. Zou, S. Yang, S. Yang, H. Zhang, Qi. Zhu, “Experiment system of thin-mirror active optics,” in Advanced Technology Optical Telescopes V, L. M. Stepp, ed., Proc. SPIE2199, 609–621 (1994).

Zou, W.

D. Su, S. Jiang, W. Zou, S. Yang, S. Yang, H. Zhang, Qi. Zhu, “Experiment system of thin-mirror active optics,” in Advanced Technology Optical Telescopes V, L. M. Stepp, ed., Proc. SPIE2199, 609–621 (1994).

Acta Astron. Sin. (1)

W. Xu, Y. Wang, “Three types 2-degree field compensating atmospheric dispersion correctors for prime focus,” Acta Astron. Sin. 34, 165–172 (1993).

Ann. Rev. Astron. Astrophys. (1)

M. White, D. Scott, J. Silk, “Anisotropies in the cosmic microwave background,” Ann. Rev. Astron. Astrophys. 32, 319–370 (1994).
[CrossRef]

Appl. Opt. (3)

Astrophys. J. (1)

J. M. Hill, J. R. P. Angel, J. S. Scott, D. Lindley, P. Hintzen, “Multiple object spectroscopy: the Medusa spectrograph,” Astrophys. J. 242, L69–L72 (1980).
[CrossRef]

J. Mod. Opt. (2)

R. N. Wilson, F. Franza, L. Noethe, “Active optics I. A system for optimizing the optical quality and reducing the costs of large telescopes,” J. Mod. Opt. 34, 485–509 (1987).
[CrossRef]

L. Noethe, F. Franza, P. Giordano, R. N. Wilson, O. Citterio, G. Conti, E. Mattaini, “Active optics II. Results of an experiment with a thin 1-m test mirror,” J. Mod. Opt. 35, 1427–1457 (1988).
[CrossRef]

Mon. Not. R. Astron. Soc. (3)

R. V. Willstrop, “The Mersenne–Schmidt: a three-mirror survey telescope,” Mon. Not. R. Astron. Soc. 210, 597–609 (1984).

C. G. Wynne, “Wide field imaging,” Mon. Not. R. Astron. Soc. 236, 47–50 (1989).

S. Phillipps, Q. A. Parker, “Galaxy surface photometry with Kodak Technical Pan film,” Mon. Not. R. Astron. Soc. 265, 385–394 (1993).

Other (7)

L. W. Ramsey, D. W. Weedman, F. B. Ray, C. Sneden, “A progress report on the spectroscopic survey telescope,” in Proceedings of the ESO Conference on Very Large Telescopes and Their Instrumentation, M.-H. Ulrich, ed. (European Southern Observatory, Garching, Germany, 1988), pp. 119–126.

S. Wang, D. Su, “A new configuration for spectroscopic survey telescope,” in Proceedings of the ESO Conference on Progress in Telescope and Instrumentation Technologies, M.-H. Ulrich, ed. (European Southern Observatory, Garching, Germany, 1992), pp. 105–108.

F. G. Watson, Q. A. Parker, “Wide-field multi-fiber spectroscopy with FLAIR II,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 65–73 (1994).

D. Su, S. Jiang, W. Zou, S. Yang, S. Yang, H. Zhang, Qi. Zhu, “Experiment system of thin-mirror active optics,” in Advanced Technology Optical Telescopes V, L. M. Stepp, ed., Proc. SPIE2199, 609–621 (1994).

D. Su, C. Cao, M. Liang, “Some new ideas of the optical system of large telescopes,” in Advanced Technology Optical Telescopes III, L. D. Barr, ed., Proc. SPIE628, 498–503 (1986).

G. Lemaitre, “Optical design with the Schmidt concept,” in Astronomy with Schmidt-type Telescopes: Proceedings of the 78th Colloquium of the International Astronomical Union, Asiago, Italy, August 30–September 2, 1983, M. Capaccioli, ed. (Kluwer, Dordrecht, The Netherlands, 1983), pp. 533–548.

I. R. Parry, I. J. Lewis, R. M. Sharples, G. N. Dodsworth, J. Webster, D. W. Gellatly, L. R. Jones, F. G. Watson, “Autofib-2 An automated fiber positioner for the prime focus of the William Herschel telescope,” in Instrumentation in Astronomy VIII, D. L. Crawford, E. R. Craine, eds., Proc. SPIE2198, 125–133 (1994).

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Figures (5)

Fig. 1
Fig. 1

LAMOST optical system.

Fig. 2
Fig. 2

LAMOST overview.

Fig. 3
Fig. 3

Segmented mirrors M A and M B .

Fig. 4
Fig. 4

Spot diagrams of LAMOST in FOV diameters 0°, 2.5°, and 5° −10° ≤ δ ≤ +60°, 2w = 5°: (A) δ = −10°, (B) δ = 0°, (C) δ = +30°, (D) δ = +60°.

Fig. 5
Fig. 5

Spot diagrams of LAMOST in FOV diameters 0°, 1.5°, and 3° +60° ≤ δ ≤ +90°, 2w = 3°: (A) δ = +60°, (B) δ = +90°.

Tables (1)

Tables Icon

Table 1 Diameter of Image Spread at the Edge of the FOV

Equations (1)

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t = ( y 2 cos 2 θ + z 2 ) 2 - 2 k r 2 ( y 2 cos 2 θ + z 2 ) 64 f 3 cos θ ,

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