J/A+AS/125/149 CHIANTI - An Atomic Database For Emission Lines I. (Dere+ 1997) ================================================================================ CHIANTI - an atomic database for emission lines. I. Wavelengths greater than 50 Angstroms Dere K.P., Landi E., Mason H.E., Monsignori Fossi B.C., Young P.R. =1997A&AS..125..149D (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Atomic physics Keywords: atomic data - astronomical data bases: miscellaneous - ultraviolet: general - Sun: atmosphere - stars: atmosphere Abstract: A comprehensive set of accurate atomic data is required for analyses of astrophysical and solar spectra. CHIANTI provides a database of atomic energy levels, wavelengths, radiative data and electron excitation data for ions which are abundant in cosmic plasmas. The most recent electron excitation data have been assessed and stored following the method of Burgess & Tully (1992A&A...254..436B). The current version is essentially complete for specifying the emission spectrum at wavelengths greater than 50{AA}. A list of observed lines in the spectral region between 50 and 1100{AA} has been compiled and compared with the lines predicted by the CHIANTI database. The CHIANTI database reproduces the vast majority of lines observed at these wavelengths. CHIANTI includes IDL (Interactive Data Language) routines to calculate optically thin synthetic spectra for equilibrium conditions. IDL routines to calculate theoretical line intensities required for electron density or temperature diagnostics and emission measure studies are also included. The CHIANTI atomic database and supporting IDL routines are available by anonymous FTP. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table3 96 1768 A list of observed lines and lines in the CHIANTI database between 50 and 1100 Angstroms table3.tex 137 2020 LaTeX version of table3 -------------------------------------------------------------------------------- See also: J/A+A/370/1071 : Fe XII UV line intensity ratios (Binello+, 2001) http://wwwsolar.nrl.navy.mil/chianti.html : CHIANTI homepage Byte-by-byte Description of file: table3 -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 8 F8.3 0.1nm LamObs Observed wavelength from literature sources (1) 10- 17 F8.3 0.1nm LamCH ? Wavelength in CHIANTI database 20- 27 A8 --- Ion Ion (spectroscopic notation) 29- 46 A18 --- Level1 Description of lower level of transition 48 A1 --- --- [-] Separation dash 50- 75 A26 --- Level2 Description of upper level of transition 77- 83 E7.2 mW/m2/sr Int ? Predicted intensity of line in a small solar flare (2) 86- 94 A9 --- Ref Literature sources of observed wavelength (3) -------------------------------------------------------------------------------- Note (1): The observed wavelength is given as 0. if there is not report of an observed line at the wavelength of a reasonably intense line predicted by CHIANTI Note (2): The intensity is given a 0. if the line is identified but is not included in the CHIANTI database. Note (3): References: 1: Acton et al. (1985ApJ...291..865A) 2: Behring et al. (1972ApJ...175..493B) 3: Behring et al. (1976ApJ...203..521B) 4: Dere (1978ApJ...221.1062D) 5: Freeman & Jones (1970SPh....15..288F) 6: Thomas & Neupert (1994, Cat. ) 7: Widing & Sandlin (1968ApJ...152..545W) 8: Kastner et al. (1974ApJ...191..261K) 9: Burton & Ridgeley (1970SPh....14....3B) 10: Feldman & Doschek (1991ApJS...75..925F) -------------------------------------------------------------------------------- Acknowledgements: Ken Dere References: Young et al., CHIANTI. II 1998A&A...329..291Y Landi et al., CHIANTI. III 1999A&AS..135..339L ================================================================================ (End) Patricia Bauer [CDS] 22-Apr-1997