Poster Open Access

Laboratory Atomic Astrophysics for near-infrared Stellar Spectroscopy

Hartman, Henrik; Burheim, Madeleine; Nilsson, Hampus; Li, Wenxian; Jönsson, Per; LUMCAS

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<oai_dc:dc xmlns:dc="" xmlns:oai_dc="" xmlns:xsi="" xsi:schemaLocation="">
  <dc:contributor>Wolk, Scott</dc:contributor>
  <dc:creator>Hartman, Henrik</dc:creator>
  <dc:creator>Burheim, Madeleine</dc:creator>
  <dc:creator>Nilsson, Hampus</dc:creator>
  <dc:creator>Li, Wenxian</dc:creator>
  <dc:creator>Jönsson, Per</dc:creator>
  <dc:description>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.</dc:description>
  <dc:title>Laboratory Atomic Astrophysics for near-infrared Stellar Spectroscopy</dc:title>
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