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17 December 1998 Galmatheia: an FUV imaging spectrograph
Jerry Edelstein, William Van Dixon, Timothy N. Miller
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Proceedings Volume 3443, X-Ray and Ultraviolet Spectroscopy and Polarimetry II; (1998) https://doi.org/10.1117/12.333607
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States
Abstract
Galmatheia is a proposed far-ultraviolet (FUV) 900 - 1850 angstrom imaging spectrograph optimized for the study of diffuse emission. Its spectra will be used to study hot galactic plasmas, characterize the formation/destruction cycle and distribution of H2 in the ISM, and determine the optical properties of dust and its spatial distribution through the Galaxy. Galmatheia is a dual reflective spectrograph consisting of two elliptical diffraction gratings and a common cylindrical mirror, slit and detector. Its 5(sigma) sensitivity to C IV/O VI emission in a one-day pointing an order of magnitude fainter than any previous detection or to theoretical predictions.
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Jerry Edelstein, William Van Dixon, and Timothy N. Miller "Galmatheia: an FUV imaging spectrograph", Proc. SPIE 3443, X-Ray and Ultraviolet Spectroscopy and Polarimetry II, (17 December 1998); https://doi.org/10.1117/12.333607
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KEYWORDS
Plasmas
Spectrographs
Sensors
Ultraviolet radiation
Galactic astronomy
Mirrors
Reflectivity
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