Sensitivity of an Imaging Space Infrared Interferometer
Astrophysics
2009-10-31 v1
Abstract
We study the sensitivities of space infrared interferometers. We formulate the signal-to-noise ratios of infrared images obtained by aperture synthesis in the presence of source shot noise, background shot noise and detector read noise. We consider the case in which n beams are pairwise combined at n(n-1)/2 detectors, and the case in which all the n beams are combined at a single detector. We apply the results to future missions, Terrestrial Planet Finder and Darwin. We also discuss the potential of a far-infrared interferometer for a deep galaxy survey.
Cite
@article{arxiv.astro-ph/0011309,
title = {Sensitivity of an Imaging Space Infrared Interferometer},
author = {Tadashi Nakajima and Hideo Matsuhara},
journal= {arXiv preprint arXiv:astro-ph/0011309},
year = {2009}
}
Comments
28 pages, 9 figures. To be published in Applied Optics