Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002apj...576l.169b&link_type=abstract
The Astrophysical Journal, Volume 576, Issue 2, pp. L169-L172.
Astronomy and Astrophysics
Astronomy
42
Atomic Data, Stars: Coronae, Stars: Individual: Name: Capella, Stars: Individual: Name: Procyon, Sun: X-Rays, Gamma Rays, X-Rays: General
Scientific paper
The intensity ratios of the 3s-->2p and 3d-->2p lines in Fe XVII were measured on the Livermore electron beam ion trap employing a complementary set of spectrometers, including a high-resolution crystal spectrometer and the Goddard 32 pixel calorimeter. The resulting laboratory data are in agreement with satellite measurements of the Sun and astrophysical sources in collisional equilibrium such as Capella, Procyon, and NGC 4636. The results disagree with earlier laboratory measurements and assertions that processes not accounted for in laboratory measurements must play a role in the formation of the Fe XVII spectra in solar and astrophysical plasmas.
Behar Ehud
Beiersdorfer Peter
Boyce Kevin R.
Brown Gregory V.
Chen Haibin
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