QSO Redshift Histogram

QSO redshift histogram

This is a redshift histogram of the number of quasars that have been reported in scientific journals (with the exception of the three new high-redshift quasars discussed in this press release). A black dot indicates an object discovered by the Sloan Digital Sky Survey (SDSS). The SDSS has found the six most distant quasars (and the four most distant objects), as well as 26 of the 30 most distant quasars.
Image credit: Don Schneider, SDSS Collaboration

This image is also available as a PostScript file (38 KB).

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