CHIANTI - an Atomic Database for Emission Lines. Paper VI: Proton Rates and Other Improvements

Details CHIANTI - an Atomic Database for Emission Lines. Paper VI: Proton Rates and Other Improvements CHIANTI - an Atomic Database for Emission Lines. Paper VI: Proton Rates and Other Improvements

2002-09-24

arxiv.org/abs/astro-ph/0209493v1

Astrophys.J.Suppl. 144 (2002) 135-152

Astronomy and Astrophysics

Astrophysics

CHIANTI is available at http://wwwsolar.nrl.navy.mil/chianti.html

Scientific paper

10.1086/344365

The CHIANTI atomic database contains atomic energy levels, wavelengths, radiative transition probabilities and electron excitation data for a large number of ions of astrophysical interest. Version 4 has been released, and proton excitation data is now included, principally for ground configuration levels that are close in energy. The fitting procedure for excitation data, both electrons and protons, has been extended to allow 9 point spline fits in addition to the previous 5 point spline fits. This allows higher quality fits to data from close-coupling calculations where resonances can lead to significant structure in the Maxwellian-averaged collision strengths. The effects of photoexcitation and stimulated emission by a blackbody radiation field in a spherical geometry on the level balance equations of the CHIANTI ions can now be studied following modifications to the CHIANTI software. With the addition of H I, He I and N I, the first neutral species have been added to CHIANTI. Many updates to existing ion data-sets are described, while several new ions have been added to the database, including Ar IV, Fe VI and Ni XXI. The two-photon continuum is now included in the spectral synthesis routines, and a new code for calculating the relativistic free-free continuum has been added. The treatment of the free-bound continuum has also been updated.

Affiliated with

Also associated with

No associations

Rating

CHIANTI - an Atomic Database for Emission Lines. Paper VI: Proton Rates and Other Improvements 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 CHIANTI - an Atomic Database for Emission Lines. Paper VI: Proton Rates and Other Improvements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CHIANTI - an Atomic Database for Emission Lines. Paper VI: Proton Rates and Other Improvements will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-612024