CHIANTI—An Atomic Database for Emission Lines. VII. New Data for X‐Rays and Other Improvements
Top Cited Papers
Open Access
- 1 January 2006
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal Supplement Series
- Vol. 162 (1), 261-280
- https://doi.org/10.1086/498148
Abstract
The CHIANTI atomic database contains atomic energy levels, wavelengths, radiative transition probabilities, and collisional excitation data for a large number of ions of astrophysical interest. CHIANTI also includes a suite of IDL routines to calculate synthetic spectra and carry out plasma diagnostics. Version 5 has been released, which includes several new features, as well as new data for many ions. The new features in CHIANTI are as follows: the inclusion of ionization and recombination rates to individual excited levels as a means to populate atomic levels; data for Kα and Kβ emission from Fe II to Fe XXIV; new data for high-energy configurations in Fe XVII to Fe XXIII; and a complete reassessment of level energies and line identifications in the X-ray range, multitemperature particle distributions, and photoexcitation from any user-defined radiation field. New data for ions already in the database, as well as data for ions not present in earlier versions of the database, are also included. Version 5 of CHIANTI represents a major improvement in the calculation of line emissivities and synthetic spectra in the X-ray range and expands and improves theoretical spectra calculations in all other wavelength ranges.Keywords
This publication has 100 references indexed in Scilit:
- Radiative transition probabilities in the O-like sequenceAstronomy & Astrophysics, 2005
- Atomic data and spectral line intensities for Ne IIIAtomic Data and Nuclear Data Tables, 2005
- EFFECTIVE COLLISION STRENGTHS FOR ELECTRON-IMPACT EXCITATION OF S XAtomic Data and Nuclear Data Tables, 2000
- ATOMIC DATA AND SPECTRAL LINE INTENSITIES FOR Mg VIAtomic Data and Nuclear Data Tables, 1998
- COMPARISON OF SATELLITE SPECTRA FOR H-LIKE Fe AND He-LIKE Fe, Ca, AND S CALCULATED BY THREE DIFFERENT METHODSAtomic Data and Nuclear Data Tables, 1997
- Atomic Data and Spectral Line Intensities for Fe XAtomic Data and Nuclear Data Tables, 1995
- Atomic Data and Spectral Line Intensities for C-like Ne VAtomic Data and Nuclear Data Tables, 1993
- Intensity ratios of emission lines from O V ions for temperature and density diagnostics, and recommended excitation rate coefficientsAtomic Data and Nuclear Data Tables, 1990
- Calculated wavelengths and oscillator strengths of n = 2-2 and 2–3 transitions for ions in the oxygen-like isoelectronic sequence between Mg V and Ni XXIAtomic Data and Nuclear Data Tables, 1986
- Techniques for the calculation of atomic structures and radiative data including relativistic correctionsComputer Physics Communications, 1974