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Optomechanical Layout


The optomechanical layout of the NIFS light path:



The primary reference documents for citations to the performance and design of FLAMINGOS-2 will be found here. Until then, please cite:

"FLAMINGOS-2: the facility near-infrared wide-field imager and multi-object spectrograph for Gemini", S. Eikenberry, R. Elston, S. N. Raines, J. Julian, R. Corley, K. Hanna, D. Hon, R. Julian, D. Rashkin, B. Leckie, W. R. Gardhouse, M. Fletcher, J. Dunn, & R. Wooff, 2004 SPIE 5492, 1196

Guiding Options

TEXES has no on-instrument wavefront sensor, and PWFS2 is routinely used for all observations. As the TEXES field of view is small guide stars can be selected down to a radius of 4.3 arc-minutes.

TEXES Demo Science Plan

The call for TEXES Demonstration Science proposals was made on May 15, 2006, with a deadline for receiving proposals of June 7, 2006. The PIs of successful SV applications have now been notified.  


In addition to science observations, it is generally necessary to observe a comparison object for each TEXES spectral setting to allow removal of atmospheric absorption features and to correct residual flat-fielding errors. In some cases the comparison object can also provide flux calibration information, although flux calibration is necessarily uncertain due to TEXES' narrow slit.

Due to molecular features in their spectra, K and M stars do not make good comparison objects.


A description of TEXES and its use is found in the paper Lacy, J., et al., PASP, vol. 114, 153, (2002).