SUMER Spectral Atlas

EUV spectral atlas in the range 800 to 1500 Å, shown in first order, converted to physical units using ground and on-board calibration data.

The SUMER spectrum with all its details clearly demonstrates the strength of this instrument. - The Solar spectrum below 1200 Å is not very well known. Thus, the present spectral atlas, and SUMER observations in general, represents a new important diagnostic tool to study essential physical parameters of the Solar atmosphere. It includes emission from atoms and ions in the temperature range 10 000 to 2 000 000 K. Thus, emission lines and continua emitted from the lower chromosphere to the lower corona can be studied.

Spectral Atlas made by Paal Brekke

First spectral scans for this atlas were made by SUMER on 25.Jan.96 with detector B on the north polar limb with 100 seconds exposure time, and on 30.Jan.96 with detector A in the Sun center with 300 seconds exposure time.

A new data set for an update of the atlas was made on 22.Apr.96 with detector A on disk center (quiet Sun) with 115 seconds exposure time.

Information like this and the following can be found on the Spectral Atlas page situated at the University of Oslo.

IED, 27.Jan.97