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Spectral Data for the Chandra X-ray Observatory - header

As of November 2011, the contents of this database have been completely superseded by the NIST Atomic Spectra Database (ASD).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

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Chandra X-ray Observatory
Photo credit: NASA  


John J. Curry, Leader
Atomic Spectroscopy Group
301-975-2817 Telephone
301-990-1350 Facsimile

100 Bureau Drive, M/S 8422
Gaithersburg, MD 20899-8422