The experimental spectrum extending from 123250 to 137000 cm-1, has been divided into 55 sections covering about 250cm-1 each. Each section comprises the following:

(i) A display of the experimental cross sections : absorption (black trace) , ionization (red trace), dissociation(blue trace) in cm2, and fluorescence (green trace) in arbitrary units.

(ii) the calculated lines displayed as sticks, the heights of which being determined from the calculated line intensity using the apparatus width (taking the Doppler width into account) as line width, ie neglecting any ionization and dissociation widths. The MQDT calcultaions of the level energies, absorption line intensities of H2 are non-adiabatic and fully ab initio. They are based on the latest quantum-chemical clamped-nuclei data of Wolniewicz and collaborators

• Download H2 absorption atlas

Data used for graphs of spectra in 15 ASCII files :

• spectrum_part_1 from 123263 to 124433 cm-1 i.e. from 81.127 to 80.365 nm
• spectrum_part_2 from 124398 to 124710 cm-1 i.e. from 80.387 to 80.186 nm
• spectrum_part_3 from 124701 to 124826 cm-1 i.e. from 80.192 to 80.112 nm
• spectrum_part_4 from 124785 to 125563 cm-1 i.e. from 80.138 to 79.641 nm
• spectrum_part_5 from 125517 to 127040 cm-1 i.e. from 79.670 to 78.715 nm
• spectrum_part_6 from 126997 to 127456 cm-1 i.e. from 78.742 to 78.458 nm
• spectrum_part_7 from 127434 to 129068 cm-1 i.e. from 78.472 to 77.479 nm
• spectrum_part_8 from 129067 to 129202 cm-1 i.e. from 77.479 to 77.398 nm
• spectrum_part_9 from 129181 to 130838 cm-1 i.e. from 77.411 to 76.430 nm
• spectrum_part_10 from 130832 to 131150 cm-1 i.e. from 76.434 to 76.249 nm
• spectrum_part_11 from 131076 to 132556 cm-1 i.e. from 76.292 to 75.440 nm
• spectrum_part_12 from 132555 to 134649 cm-1 i.e. from 75.440 to 74.267 nm
• spectrum_part_13 from 134616 to 134996 cm-1 i.e. from 74.285 to 74.076 nm
• spectrum_part_14 from 134970 to 136056 cm-1 i.e. from 74.091 to 73.499 nm
• spectrum_part_15 from 136045 to 137802 cm-1 i.e. from 73.505 to 72.568 nm

For detailed description and references, see Readme.txt