Physics
Scientific paper
Mar 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aps..dmp.j4001s&link_type=abstract
American Physical Society, 41st Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics Volume 55, Number 5,
Physics
Scientific paper
Laboratory experiments yield vitally needed benchmarks of atomic data for plasma modeling. An effort to provide rate coefficients for dielectronic recombination (DR) and electron impact ionization (EII) of highly charged atomic ions is being carried out at the Heidelberg heavy-ion storage ring TSR ootnotetextE. W. Schmidt et al., ApJL 641 (2006) L157; A&A 492 (2008) 265; M. Lestinsky et al., ApJ 698 (2009) 648 and references therein.. Popular compilations of DR data sometimes underestimate low-temperature DR rate coefficients by orders of magnitude as has already been suspected e.g. for Fe-M shell ions on the basis of the modeling of x-ray spectra from active galactic nuclei ootnotetextH. Netzer, ApJ 604 (2004) 551; S. Kraemer et al., Apj 604 (2004) 556.. Even modern theoretical calculations often deviate strongly from our experimental results. This is due to the fundamental difficulty to calculate low-energy DR resonance positions of complex ions with sufficient accuracy. For these ions, storage-ring DR experiments are the only reliable source for low-temperature DR data. Astrophysically relevant results from storage-ring EII measurements and photon-ion experiments at synchrotron light sources will also be presented.
No associations
LandOfFree
Laboratory astrophysics with ion-beams: Cross sections for dielectronic recombination, photoionization and electron-impact ionization from heavy-ion storage-rings and synchrotron light-sources does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Laboratory astrophysics with ion-beams: Cross sections for dielectronic recombination, photoionization and electron-impact ionization from heavy-ion storage-rings and synchrotron light-sources, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laboratory astrophysics with ion-beams: Cross sections for dielectronic recombination, photoionization and electron-impact ionization from heavy-ion storage-rings and synchrotron light-sources will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1425875