NICI Introduction

NICI, the Near-Infrared Coronagraphic Imager, is a dual-channel, near-infrared (1-5 µm) coronagraphic imager for use on Gemini South. It was built by Mauna Kea Infrared (MKIR). NICI arrived on Cerro Pachon in January 2007 and obtained "first light" on February 20th, 2007. It is now undergoing an extensive period of commissioning and instrument performance characterization and optimization which is expected to extend into 2007B. 

NICI is optimized for detection of faint, sub-stellar companions of stars by utilizing the Simultaneous Spectral Differential Imaging (SSDI) technique. Fed with a dedicated curvature-sensing adaptive optics system, the dual-channel science camera has several occulting mask, Lyot stop, and filter choices.

NICI will be the first Gemini instrument to be used in "campaign" mode. A single planet-search program has been awarded a significant amount of observing time (50 nights over two to three years). NICI campaign observing is planned to start in late 2007, following instrument commissioning. For more information about the NICI campaign, please see the Campaign Science pages. 

The current web pages present an overview of NICI's expected capabilities and sensitivity in order to support the campaign science proposal process. Further information will be added after NICI's actual performance is measured during acceptance testing and commissioning.

Last update: 1 March 2007, B. Rodgers
Created: 4 Jan 2006; Phil Puxley