Search

Astronomical infrared observations are of increasing importance for stellar spectroscopy. The analysis of element abundance relies on high-quality observations, stellar models, and ultimately on accurate atomic data. With the growing number of near-IR astronomical observations and surveys, the absence of highaccuracy data is becoming apparent and a severe limiting factor. We run a program to take up the task to provide evaluated, high-accuracy atomic data for important transitions in the near-infrared spectral region, mainly 1-5 microns. A combinations of both experimental and theoretical techniques is used, to provide complete sets of data with a low uncertainty. FTS measurements of a discharge are combined with laser induced fluorescence techniques, and GRASP2k and ATSP2k atomic structure calculations for the theoretical values., {"references":["Nature, editorial Nature 503, 437 (2013)","Bean, Seifahrt, Hartman, et al., The CRIRES search for planets, ApJ 713, 410 (2010)","http://www.subarutelescope.org/Observing/Instruments/IRCS/index.html","SONG network, http://song.phys.au.dk","C. Froese Fischer, G. Tachiev, G. Gaigalas and M. Godefroid, Comput. Phys. Commun., 176 559 (2007).","P. Jönsson, G. Gaigalas, J. Bieroń, C. Froese Fischer, and I.P. Grant, Comput. Phys. Commun 184 2197 (2013)","Pehlivan Rhodin, A., Hartman, H., Nilsson, H., Jönsson, P., A&A 598 (2017)","Pehlivan Rhodin, A., Hartman, H., Nilsson, H., Jönsson, P., in review (2021)","Holmes, C., et al., ApJS 224, 35 (2016)","Li,W., et al. MNRAS 502, 3780 (2021)"]}