Monday, November 29, 2010

Cluster objids and names updated

As we noted before, some of the objids of the BCGs are "shorter" than it should be. This is because part of the DR7 catalogue I was using are from an earlier rerun of the SDSS pipeline (before 1/2009). Although the DR7 is officially released by the end of 2008, some reprocessing was still in progress after 1/2009. Thanks to Brian Yanny who told me that the latest DR7 catalogues all have their final rerun finished and the objids are finalised. Therefore, I updated the BCGs' objids. Note that this only affect a small portion of the BCGs. Also, some spectroscopic redshifts are added to those BCGs after updating the objids.

Per Heinz Andernach's suggestion, I added a "name" column to the cluster catalog. The name is by the convention GMBCG J RA DEC. For the RAs and DECs, I keep both of them to 5 digits.

The new catalogs are ready for downloading from the webpage.

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