Computer simulations of astronomical objects as seen by (lie next generation optical space telescopes

الملخص EN

Computer simulations are carried out to quantity the quality of astronomical objects as seen by the Next Generation Space Telescope (NGST).

1 hese simulations are studied :n terms of the modulation transfer function, MTP.

of a reference star, ano the power spectrum oi a binary star.

: he results oi these simulations are compared with the simulated results for the same astronomical objects as seen via Hubble Space Telescope (HST), and a 4 m Ground-Based Optica! Telescope (GBT) :n the absence and presence of atmospheric turbulence.

This study is also extended to examine the percentage frequency recovery of these telescopes from a binary star of separation is just within the full extent of Hubble’s psf in the absence and presence of atmospheric turbulcnce.