Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.0703g&link_type=abstract
American Astronomical Society Meeting 207, #07.03; Bulletin of the American Astronomical Society, Vol. 37, p.1160
Astronomy and Astrophysics
Astrophysics
Scientific paper
We present high resolution laboratory spectra of K-shell X-ray lines from inner-shell excited and ionized ions of oxygen, obtained with a reflection grating spectrometer on the electron beam ion trap (EBIT-I) at the Lawrence Livermore National Laboratory. Using a multi-ion model including all major atomic collisional and radiative processes, we identify K-shell transitions of oxygen ions from O III to VI. The wavelengths and associated errors for some of the strongest transitions are given, taking into account both the experimental and modeling uncertainties. The present data should be useful in identifying the absorption features present in astrophysical sources, such as active galactic nuclei and X-ray binaries. They are also useful in providing benchmarks for the testing of theoretical atomic structure calculations.
Behar Ehud
Beiersdorfer Peter
Chen Haibin
Gu Minfeng
Kahn Sophia
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