Solar Spectrum Atlases from NSO/NOAO

Lloyd Wallace and colleagues have prepared from FTS archives a series of atlases.

NSO# color ftp name wave number wave length source (cm-1) (microns)
91001 yellow photatl 1850 to 9000 5.4 to 1.1 center disk
93001 pink niratl 8900 to 13600 1.123 to 0.735 " "
98001 green visatl 13500 to 28000 0.740 to 0.357 " "
94001 pale blue spot2atl 460 to 630 22.0 to 16.0 " "
470 to 1233 21.0 to 8.1 umbra
92001 orange spot1atl 1970 to 8640 5.1 to 1.16 "
98002 dark blue spot3atl 8900 to 15050 1.12 to 0.66 "
(in preparation) 15000 to 23000 0.666 to 0.435 "

Frank Hill has prepared the ftp archives. The protocol is standard:

ftp argo.tuc.noao.edu
(anonymous)
(e-mail address)
cd pub/atlas
cd
get README
mget
bye

The README file explains the details of the data format (which varies from atlas to atlas). In general there is a wavenumber vs intensity listing and, recently, postscript files for direct plotting. Usually there are 4 data columns: wave number, solar component, atmospheric component, and the 1 airmass raw spectrum. Solar identifications are given in the bound atlases. A limited number of the latter are available. Since many copies have already been distributed, especially to libraries, please do not ask for duplicates. Requests may be made to wcl@noao.edu. Ref: Wallace, L. et al, 1996, Ap.J. Sup 106,165.