[skip navigation]
[ASD Home][Lines Query][Levels Query][List of Spectra][Ground States and Ionization Energies][Bibliography][Help] NIST Physical Measurement Laboratory
National Institute of Standards and Technology NIST Physical Measurement Laboratory

NIST Atomic Spectra Database Lines Form

Best viewed with the latest versions of Web browsers and JavaScript enabled


e.g., Fe I or Na;Mg; Al or mg i-iii
Lower Wavelength: or Upper Wavenumber (in cm-1)
Upper Wavelength: or Lower Wavenumber (in cm-1)
Units:





Te(eV):  
Ne(cm-3): Ti(eV): (if TiTe)
Grotrian Diagram

640 x 640 800 x 640 1024 x 768 1280 x 1024
|

(requires Java2)

Java Security Level should be Medium

Output Options

Additional Criteria
Format output: Lines:
All
Only with transition probabilities
Only with energy level classifications
Only with observed wavelengths
No JavaScript
Energy Level Units:
Display output: Bibliographic
Information
:
TP references, Line references
Page size:



Wavelength Data: Observed
Ritz
Observed - Ritz (difference)
Wavenumber (in cm-1)
Output ordering:
Wavelength


Optional Search Criteria

Maximum lower level energy: (e.g., 100000) Wavelengths in:

 Vacuum (< 2,000 Å)   Air (2,000 - 10,000 Å)  Wavenumber (> 10,000 Å)
 Vacuum (< 10,000 Å)  Wavenumber (> 10,000 Å)
 Vacuum (< 2,000 Å)   Air (2,000 - 20,000 Å)   Vacuum (> 20,000 Å)
 Vacuum (all wavelengths)
 Vacuum (< 1,850 Å)   Air (> 1,850 Å)
 Wavenumber (all wavelengths)

Maximum upper level energy: (e.g., 400000)
Transition strength bounds will apply to:

Minimum transition strength: (e.g., 1.2e+05) Transition strength: in units of 108 s-1
          log(gf)
Maximum transition strength: (e.g., 2.5e+12)

 
Transition Type: Allowed (E1)    Forbidden (M1,E2,...)
  (e.g., C+)

Relative intensity minimum: (e.g., 1.2e-03) Level information:
Configurations  Terms  Energies  g



[ASD Home][Lines Query][Levels Query][List of Spectra][Ground States and Ionization Energies][Bibliography][Help] NIST Physical Measurement Laboratory