ISSTT Proceedings

ISSTT Proceedings

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James Webb Space Telescope, SAFIR, SPECS, and the future of Space Astronomy

Authors:
John C. Mather, Dan Lester, Harold Yorke
Abstract:
The James Webb Space Telescope (MST) is the first in a possible series of deployable infrared to millimeter wave space telescopes. The design process for JWST has already produced ultralight mirrors, deployment methods, and cooling approaches that could lead to much larger and more capable equipment in the future. We will describe the progress on TWST in the context of its history and illustrate some new concepts for future missions that spring from it These include the SAFIR (Single Aperture Far Infrared) telescope and the SPECS (Submillimeter Probe of the Evolution of Cosmic Structure). The JWST will operate at the Sun-Earth Lagrange point L2, where radiative cooling lowers the telescope and instrument temperatures to about 35 K. It will have an 18-segment beryllium primary mirror with a 25 m² area fitting inside a 6.6 m circumscribed circle, and will provide spectroscopy and imaging over the wavelength range from 0.6 to 28 µm. It is planned for launch in 2011 on an Ariane 5 rocket.
Categories:
Invited Talk
Year:
2004
Session:
Inv
Full-text:
Download a PDF of this paper.
Page Number(s):
1