CFHT operating manual - Homepage Usask
CFHT operating manual - Homepage Usask
CFHT operating manual - Homepage Usask
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ESPaDOnS: examples of spectra http://webast.ast.obs-mip.fr/magnetisme/espadons_new/spectra.html<br />
The second example features two close-up views of selected line profiles:<br />
the first graph shows a spectrum portion very well known to solar physicists working on solar magnetism, including<br />
2 close-by FeI lines with different magnetic sensitivities. ESPaDOnS observations (full line) are found to match perfectly<br />
with the reference Kitt Peak solar spectrum (dotted line) once the latter is broadened to a spectral resolution of 69,000<br />
(dashed line). Only the two time variable telluric lines (@ 630.20 and 630.28nm) show (as expected) a significant<br />
difference with respect to the Kitt Peak spectrum;<br />
the second graph shows a spectrum region in the near infrared (@ 760nm) heavily crowded with strong telluric<br />
bands having null core relative intensities; one can notice from this data that diffused light within the spectrograph is<br />
small and well corrected out by the reduction routines.<br />
Solar spectrum @ 630.2 nm Solar spectrum @ 763.5 nm<br />
Other such examples will be added soon on this page.<br />
© Jean-François Donati, last update May 26 2004<br />
2 of 2 08/07/04 11:35 PM
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