Science with NIFS, Australia's First Gemini Instrument

Peter J. McGregor , Michael Dopita , Peter Wood , Michael G. Burton, PASA, 18 (1), in press.

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Guide Star Requirements

Observations with NIFS and the ALTAIR natural guide star system will require an optical AO guide star brighter than $R \sim 15$ mag within $\sim 20''$ of the science object and a near-infrared OIWFS guide star within the 120'' diameter ALTAIR field and brighter than perhaps $K \sim 17$ mag for slow flexure correction. When the ALTAIR laser guide star upgrade has been implemented, an AO guide star with R < 17-19 mag and within $\sim 30''$ of the science object (Ellerbroek & Tyler 1998) will still be required for rapid tip-tilt correction. A near-infrared OIWFS guide star will also be required for slow flexure correction, or suitably bright OIWFS guide stars may be used for rapid tip-tilt correction in the near-infrared. These are demanding requirements for many science programs.


Next Section: NIFS Core Science
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Contents Page: Volume 18, Number 1

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