The following are the main additions and changes to the survey
database between the 100k Release of 30 June 2001 and the Final Release
of 30 June 2003:
- Input source catalogue: The input source catalogue has been
cleaned up by removing the superfluous 'supplementary' sources
(additional sources fainter than the spectroscopic survey limit)
that were included in the 100k release, and deleting 6224 artifacts
identified by visual examination of the postage stamp images - see
the database
description. The final source catalogue consists of 382323
objects.
- Additional photometry: In addition to the original APM
bJ photometric parameters for each source, there are
now also SuperCosmos bJ and rF photometric
parameters - the new parameters are listed in the
database
description. The WWW database offers postage stamp images
from APM and both SuperCosmos bands (only the APM images are
available on the DVDs).
- Photometric calibration: The photometric calibration of the
2dFGRS source catalogue has been further refined since the 100k
release through comparisons with both SuperCosmos and SDSS - see
this summary of the
calibrations.
- Additional spectroscopy: The main change since the 100k
release is that there are now spectroscopic observations and
parameters for 245591 sources, and reliable (quality>=3) redshifts
for 221414 galaxies - see this
status summary for
further details.
- Masks and selection code: The
survey masks have been
updated for the final sample, and now fully implement the
procedures described in Colless et al. (2001) and Norberg et al.
(2002). A new
code is
available for selecting various types of subsamples, and for
generating corresponding mock, unclustered catalogues.
- Publications: There are now many publications giving the
major results from the 2dFGRS - see the
publication list for
details.
- Images and movies: A large number of images (and some
movies) showing the survey and the main science results, along
with some movies, are available
here.
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