Hinode/EIS spectra and Gaussian fit parameters for cool loop footpoint datasets

Contains derived data for the article "Updated reference wavelengths for Si VII and Mg VII lines in the 272-281 Angstrom range" submitted to The Astrophysical Journal and authored by Dr. Peter Young (NASA Goddard Space Flight Center).

The zip file contains 13 sub-directories corresponding to the 13 datasets studied in the article. In each directory there are two files: an IDL save file, and an ASCII text file.

Upon restoring the IDL save file into IDL, you will see four quantities (the names may vary slightly between datasets):

MAP: an IDL map containing the Si VII 275.37 image from which the pixel mask was selected.
MASK: a pixel mask generated with the routine pixel_mask_gui.pro using the input MAP. The pixels in the map are used to create the spectrum.
SWSPEC: A spectrum structure generated with the routine eis_mask_spectrum.pro containing the EIS short-wavelength channel spectrum.
LWSPEC: A spectrum structure generated with the routine eis_mask_spectrum.pro containing the EIS long-wavelength channel spectrum.

LWSPEC was input to the Gaussian-fitting routine spec_gauss_eis.pro and fits were generated for the emission lines listed in the article. The routine writes the fit parameters to the ASCII text file.

The Gaussian fit parameters can be read into IDL using the routine read_line_fits.pro. You can also use the routine line_fits_summary.pro to generate a printout of the fit parameters.

The IDL software described here is available with the Solarsoft repository (https://sohoftp.nascom.nasa.gov/solarsoft/).