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SUMMARY:Atomic lines parameters inference using a global spectropolarimetr
 ic inversion
DTSTART;VALUE=DATE-TIME:20230512T075500Z
DTEND;VALUE=DATE-TIME:20230512T081000Z
DTSTAMP;VALUE=DATE-TIME:20240704T115655Z
UID:indico-contribution-348@meetings.aip.de
DESCRIPTION:Speakers: Dušan Vukadinović (Max Planck Institute for Solar 
 System Research)\nMany solar spectral lines have poorly determined atomic 
 parameters\, such as the transition probability or the central wavelength\
 , especially in the near-ultraviolet (NUV) range. We present a novel appro
 ach to exploit high-angular-resolution spectropolarimetric observations of
  the Sun to obtain precise atomic parameters of spectral lines\, required 
 for the proper analysis of solar and stellar observations. The inversion-b
 ased approach requires that unique (global) values of atomic parameters mu
 st represent very well spectral line profiles originating from very differ
 ent solar atmospheres within an observed field of view. To test this so-ca
 lled global method\, we analyzed synthetic spectra computed from magneto-h
 ydrodynamic models of the solar atmosphere and compared the results to the
  previously used methods. The method is general enough to be applied to th
 e spectral lines from the NUV to the infrared wavelengths. The global meth
 od is able to retrieve reliable estimates of atomic parameters even for we
 ak and blended spectral lines\, thus extending the list of spectral lines 
 with reliable atomic parameters used to analyze solar and stellar spectra.
 \n\nhttps://meetings.aip.de/event/24/contributions/348/
LOCATION:Haus H\, Telegrafenberg
URL:https://meetings.aip.de/event/24/contributions/348/
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