Computer Science – Sound
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spd....42.1828b&link_type=abstract
American Astronomical Society, SPD meeting #42, #18.28; Bulletin of the American Astronomical Society, Vol. 43, 2011
Computer Science
Sound
Scientific paper
The Extreme-Ultraviolet Normal-Incidence Spectrograph is a sounding rocket instrument with two independent but co-pointing imaging spectrographs. One spectrograph observes emission lines in a long-wavelength (LW) channel (300-370 A), while a second observes lines in a short-wavelength (SW) channel (170-205 A). The instrument was last flown on 6 November 2007 (EUNIS-07), when there were no active regions on the solar disk. After the flight, the absolute radiometric responses of both channels were derived from laboratory measurements obtained in the same facility used for pre-flight calibrations of SOHO/CDS and Hinode/EIS. Coordinated EUNIS-07 and EIS observations of quiet sun area near disk center reveal that the sensitivity of both EIS wavebands had diminished to 82% of their pre-launch values (Wang et al. 2011). Here we use the combined EUNIS-07 and EIS spectra to investigate quiet sun areas and small bright points observed by both instruments, as well as a larger, brighter bright point that was observed only by EUNIS-07.
Brosius Jeffrey W.
Landi Enrico
Rabin Douglas M.
Thomas Robert J.
Wang Tie-Jun
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