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S. Chakrabarti (Boston University), M. W. Bautz, C. R. Canizares (M. I. T.), R. Cen (Princeton University), T. A. Cook (Boston University), N. Craig (U. C. Berkeley), A. Dalgarno (Harvard University), C. Heiles (U. C. Berkeley), E. B. Jenkins (Princeton University), J. Lapington (Boston University), H. R. Miller (Georgia State University), J. P. Ostriker (Princeton University), K. Sembach (Space Telescope Sci. Inst.), J. M. Shull (University of Colorado), A. N. Witt (University of Toledo), D. Ghosh Roy, W. C. Karl, P. LaPlume, C. Monnier, K. Wilton (Boston University), j Arabadjis (M. I. T.)
The Spectroscopy and Photometry of IGM’s Diffuse Radiation (SPIDR) mission has been selected as a NASA Small Explorer (SMEX) mission. SPIDR will spectrally image a large (~20%) portion of the sky in the 103 – 120 nm and 154 – 156 nm bands. It is designed to observe emission lines that are key diagnostics of warm-hot (log T = 5 – 6) gas in various Galactic and extragalactic environments. In addition, the instruments are also capable of spectrally imaging other extended emission sources such as nebulae, supernova remnants and comets. These measurements will be obtained by six single-element imaging spectrographs in combination with a novel observation strategy. SPIDR contains no expendables and has a nominal operational life of three years. A Guest Investigator program is a key element of SPIDR. We will present the technical details and key scientific objectives of SPIDR. Financial support is provided by NASA Contract NAS 5-03013.
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Bulletin of the American Astronomical Society, 35 #3
© 2003. The American Astronomical Soceity.