Computer Science – Performance
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsh31a1180g&link_type=abstract
American Geophysical Union, Fall Meeting 2004, abstract #SH31A-1180
Computer Science
Performance
7549 Ultraviolet Emissions, 7594 Instruments And Techniques, 2124 Heliopause And Solar Wind Termination, 2164 Solar Wind Plasma, 2194 Instruments And Techniques
Scientific paper
A high-throughput, high-resolution spectrometer for diffuse radiation at 30.4 nm allows a way to map the heliopause and to image the three-dimensional flow pattern of the solar wind, including in the regions over the sun's poles. The radiation reaching an observer would include glow of the interstellar plasma beyond the heliopause and emissions produces by charge exchange of solar wind alpha-particles on interplanetary atomic hydrogen. We show that high spectral resolution would separate these two sources of radiation and distinguish between the high (ecliptic) and slow (polar) solar wind flows. This enabling instrumentation should be able to measure 1 milli-Rayleigh irradiance in 1000 seconds with a 0.005-nm spectral resolution with an angular pixel of a few degrees. The desired performance characteristics can be achieved by combining multiple entrance slits with an optimized spectrometer design.
Edelstein José
Gruntman Mike
Lampton Michael
Pizzo Vic
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