Spectroscopic Equipment for the Space Telescope

Details Spectroscopic Equipment for the Space Telescope Spectroscopic Equipment for the Space Telescope

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982rspta.307..549l&link_type=abstract

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, Volume 307, Issue 1500,

Physics

9

Scientific paper

The Space Telescope will provide views of the Universe of remarkable clarity. Central to its capabilities is an f/24 Ritchey--Chretien telescope with a 40 000 cm2 unobscured collecting area, which will provide point-source images less than 0.1' ' in radius at wavelengths below 633 nm. It will operate over the range 110 nm to 1 mm. The initial flight instrumentation includes two spectrographs, the Faint Object Spectrograph (F.O.S.) and the High-Resolution Spectrograph (H.R.S.). The F.O.S. is sensitive from 115 to 800 nm. It will provide data at resolving powers 103-102 on extremely faint sources. The H.R.S. operates at the wavelengths 107-320 nm. It will achieve high photometric accuracy at resolving powers 105, in the echelle mode, or 104-103 in first order, on brighter targets. The two cameras on board the S.T. will provide ancillary spectroscopic capabilities.

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