TMT-AGE: numerical simulation of a new tomographic reconstruction method for wide FoR MOAO

Yoshito H. Ono; Masayuki Akiyama; Shin Oya

doi:10.1117/12.2055912

7 August 2014 TMT-AGE: numerical simulation of a new tomographic reconstruction method for wide FoR MOAO

Yoshito H. Ono, Masayuki Akiyama, Shin Oya

Proceedings Volume 9148, Adaptive Optics Systems IV; 91486M (2014) https://doi.org/10.1117/12.2055912
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

We are conducting a concept study on a wide field of regard (FoR) Multi-Object Adaptive Optics (MOAO) system for Thirty Meter Telescope (TMT-AGE: TMT-Analyzer for Galaxies in the Early universe). The main science target of TMT-AGE is high-redshift galaxies. Considering the small number density of high-redshift galaxies, enlarging the FoR of an MOAO system up to around 100 is critical. In order to increase the FoR of an MOAO system, we propose a new tomographic reconstruction method. In the new method, we use atmospheric wind profiles and WFS measurements at previous time steps to increase the number of virtual measurement points of atmospheric turbulence layers for tomographic reconstruction. We present the results of numerical simulations with the new tomography method. The simulations show the new method can reduce the tomographic error in a wide FoR.

Citation Download Citation

Yoshito H. Ono, Masayuki Akiyama, and Shin Oya "TMT-AGE: numerical simulation of a new tomographic reconstruction method for wide FoR MOAO", Proc. SPIE 9148, Adaptive Optics Systems IV, 91486M (7 August 2014); https://doi.org/10.1117/12.2055912

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