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Spectral Data for the Chandra X-Ray Observatory

As of November 2011, the contents of this database have been completely superseded by the NIST Atomic Spectra Database (ASD). Therefore, this database has been discontinued. To search for the data previously contained in this database (multiply ionized spectra of Ne, Mg, Si, and S), please go to ASD by clicking on the link below.

Go to the NIST Atomic Spectra Database

Created June 18, 2009, Updated September 21, 2016