TIGER: a high contrast infrared imager for the Giant Magellan Telescope

摘要

The Thermal Infrared imager for the GMT which provides Extreme contrast and Resolution (TIGER) is intended as asmall-scale, targeted instrument capable of detecting and characterizing exoplanets and circumstellar disks, around bothyoung systems in formation, and more mature systems in the solar neighborhood. TIGER can also provide generalpurpose infrared imaging at wavelengths from 1.5-14 μm. The instrument will utilize the facility adaptive optics (AO)system. With its operation at NIR to MIR wavelengths (where good image quality is easier to achieve), and much of thehigh-impact science using modestly bright guide stars, the instrument can be used early in the operation of the GMT.The TIGER concept is a dual channel imager and low resolution spectrometer, with high contrast modes of observationsto fulfill the above science goals. A long wavelength channel (LWC) will cover 7-14 μm wavelength, while a shortwavelength channel (SWC) will cover the 1.5-5 μm wavelength region. Both channels will have a 30° FOV. In additionto imaging, low-resolution spectroscopy (R=300) is possible with TIGER for both the SWC and LWC, using insertablegrisms.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.