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Next: The Echelle Relation Up: Wavelength Calibration Previous: Wavelength Calibration . A preliminary step to the wavelength calibration consists of extracting the orders of the WLC image which can then be used to determine the dispersion relation in two steps: . ... Both methods are based on the echelle relation and therefore are not applicable if the disperser is not an echelle grating, as it is the case for EFOSC which involves a grism disperser. ...

As the Universe expands, gravity pulls on the Universe, and slows the expansion down over time. As we look to great distances, we are looking back in time. If we can measure how fast the Universe is expanding in the past, and compare it to how fast it is expanding now, we can see the total gravitational effect of all matter in the Universe. Here we plot the distance between two galaxies as a function of time. ... Universes with lots of material . ...

The Equatorial Inertial (GEI) coordinate system: . The X GEI axis is directed to the point of the spring equinox, . The Z GEI axis is coincide with the Earth's rotation axis, . The Y GEI supplements the right three. The Geographic (GEO) coordinate system: . ... The Solar Magnetic (SM) coordinate system: . ... About space physics coordinate transformation see Russel [1971] and Hapgood [1992] . ... M.A. Hapgood , Space physics coordinate transformations: A user guide // Planet Space Sci. ...

... The ewavelet tasks detects sources using wavelet transforms. ... Figure: Solid line: The mexican hat wavelet function. Dashed line: a gaussian function with the same parameter . ... Since the image is convolved with the MH function the MH acts like a sort of sliding cell: the positive part being the source cell and the negative part being background area. From this it is clear that the wavelet scale should be smaller than the image itself in order to get a well defined image convolution. ...

... Recent Topics . ... Forum . MAO main . Flame . The "Flame" description . ... The English description is not quite correct, I suggest something like: . ... Just testing forum . The administrator has disabled public write access. sekanato . ... Description changed. ... The administrator has disabled public write access. Board Categories MAO main - Info - MAO - news - Flame Technical - Technical Support(Forum)(Техподдержка(Форум)) . ... Powered by Kunena Forum . ...

... If you choose to access the files via this ftp server, keep in mind that there is a known bug in using Safari; the recommended browser is Firefox. ... For the Active Reference Files links below, when you arrive at the page, click on the instrument name, and then on the reference file type of your choice. ... Browse the files via FTP (not supported by some browsers) . ... NOTE: If you choose to use the ftp access, there is a known bug with trying to access files via ftp server with the Safari browser...

. Next: Description of program searchdup . G. Comoretto . Osservatorio di Arcetri . Florence, Italy . љ . Description of program searchdup . Program parameters . Program use . Algorithm . About this document ... Gianni Comoretto . 2000-06-30

... Mailing Lists . ... Go to new wiki . ... Site / . ... Conditionals used to structure pagelist output: (:if equal {<$Group}:) At beginning of list (:if equal {>$Group}:) At end of list (:if ! ... equal {=$Gr