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REFERENCE PAPERS

  Descriptive papers about Hydra and the Bench Spectrograph have been published.

The first three papers address the initial version of Hydra as designed for use on the Mayall 4 meter and cover some of the fundamental aspects of the instrument concept and some instrumental capabilities.

• Barden, S. C. and Rudeen, A. C. (1990), Kitt Peak National Observatory Fiber Actuator Device, in Instrumentation in Astronomy VII, ed. David L. Crawford, SPIE Vol. 1235, p. 729.
• Barden, S. C., Armandroff, T., Massey, P., Groves, L., Rudeen, A. C., Vaughnn, D., and Muller, G. (1992), Hydra -- Kitt Peak Multi-Object Spectroscopic System , in Fibre Optics in Astronomy II, ed. Peter M. Gray, A.S.P. conference series Vol. 37, p. 185.
• Barden, S. C., Elston, R., Armandroff, T., and Pryor, C. P. (1992), Observational Performance of Fiber Optics -- High Precision Sky Subtraction and Radial Velocities , in Fibre Optics in Astronomy II, ed. Peter M. Gray, A.S.P. conference series Vol. 37, p. 223.

The next two papers address specific modifications to Hydra for use on the WIYN telescope.

• Barden, S. C., Armandroff, T., Muller, G., Rudeen, A. C., Lewis, J., Groves, L. (1994), Modifying Hydra for the WIYN Telescope: an Optimum Telescope, Fiber MOS Combination , in Instrumentation in Astronomy VIII, ed. David L. Crawford and Eric R. Craine, SPIE Vol. 2198, p. 87.
• Barden, S. C. and Armandroff, T. (1995), Performance of the WIYN Fiber-Fed MOS System: Hydra , in Fiber Optics in Astronomical Applications, ed. Samuel C. Barden, SPIE Vol. 2476, p. 56.

There have also been numerous scientific papers published in recent years based on Hydra data (obtained during Hydra's tenure on the Mayall telescope). Some recent examples are:

• Caldwell, N., Rose, J. A., Sharples, R. M., Ellis, R. S., and Bower, R. G. (1993), A.J. 106 :473.
• Hill, J. M., and Oegerle, W. R. (1993), A.J. 106 :831.
• Hillenbrand, L. A., Massey, P., Strom, S. E., and Merrill, K. M. (1993), A.J. 106 :1906.
• Massey, P. M. and Armandroff, T. E. (1995), A.J. 109 :2470.
• Perelmuter, J.-M., Brodie, J. P., and Huchra, J. P. (1995), A.J. 110 :620.