TARdYS

TARdYS is one of the most advanced, most ambitious projects developed at the AIUC in the line of high resolution spectroscopy, it is an instrument thought to provide single object spectroscopy with high spectral resolution and high stability, in the near infrared Y band. TARdYS is the TAO-AIUC high Resolution Y band Spectrograph and will benefit from the large aperture (6.5 m) and exceptional site of the University of Tokyo Atacama Observatory at the summit of Cerro Chanjnantor (5600 m).

The main scientific motivation for TARdYS is the measurement of high precision RV of low mass stars, mainly M type. In fact it has been proved by theoretical studies that observing M type stars in the near IR optimizes the chance of detection of earth like exoplantes in the habitable zone.

TARdYS will provide spectral resolution above 60.000 in the spectral range from 0.84 to 1.15 mm. The optical design of the spectrograph is a classic white pupil configuration based on a R6 echelle.

TARdYS will be fed by optical fibre with an AO module. Wavelength calibration will be provided by a Uranium lamp, eventually the development of an ethalon system will be considered.

Team members:

  • Leonardo Vanzi, Kentaro Motohara (PIs)
  • Suri Rudkee, Christian Shwab (opticl design)
  • Mauricio Flores (mechanical design)
  • Abner Zapata (calibrations)
  • Tzu Chen (software)
  • Andres Jordan (data reduction)
  • James Jenkins, Matias Jones, Andres Jordan (science)
tardys3

TARdYS Optical Design

TARdYS Opto-Mechanical Configuration

TARdYS Opto-Mechanical Configuration

H1RG Teledyne detector

H1RG Teledyne detector