New Atomic Data for the Astrophysically Important Ion, Fe X

Details New Atomic Data for the Astrophysically Important Ion, Fe X New Atomic Data for the Astrophysically Important Ion, Fe X

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...18311201d&link_type=abstract

American Astronomical Society, 183rd AAS Meeting, #112.01; Bulletin of the American Astronomical Society, Vol. 25, p.1458

Astronomy and Astrophysics

Astrophysics

Scientific paper

New atomic data for Fe X have been calculated using the distorted wave approximation. These data should be useful for analysis of EUVE and HST high resolution stellar spectra. The calculations include the 54 levels of the 3s(2) 3p(5) , 3s3p(6) , 3s(2) 3p(4) 3d, and 3s3p(5) 3d configurations. Electron impact collision strengths were calculated at five incident electron energies: 9.0, 18.0, 27.0, 36.0 and 45.0 Ry. Spontaneous radiative decay probabilities have also been computed. Relative spectral line intensities were calculated for all astrophysically important transitions, for an ion temperature of 10(6) K and electron densities ranging from 10(8) to 10(12) cm(-3) . The line intensities were obtained by computing excitation rate coefficients assuming a Maxwellian electron velocity distribution, and solving the equations of detailed balance for the level populations. In addition, the effects of proton excitation and radiative excitation from a photosphere have been considered. The relative line intensities have been compared to available solar observations in the UV and EUV wavelength regions. Four previously unidentified EUV lines in solar spectra are classed as Fe X transitions as a result of this comparison. While there is general agreement between calculated and experimental line intensities, there are also some interesting discrepancies. This work is supported by a NASA grant from the Ultraviolet and Visible Astrophysics Branch of the Astrophysics Division under Contract No. W17,362.

Affiliated with

Also associated with

No associations

Rating

New Atomic Data for the Astrophysically Important Ion, Fe X 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 New Atomic Data for the Astrophysically Important Ion, Fe X, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Atomic Data for the Astrophysically Important Ion, Fe X will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-781585