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* DR3 now active *
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Description of 6dFGS database schema
The 6dFGS database is housed under Microsoft's relational database software,
SQL Server 2000.
The data are organised in several tables (listed below) representing the master
target list, the various input catalogues that make up the master target list
and the results of the spectral observations. The TARGET table forms the hub of the database.
Every table is interlinked
via the parameters targetid and targetname. These parameters
are unique in the master TARGET table but are not necessarily unique
in the other tables e.g. SPECTRA, as objects can be observed more than once.
In addition to the parameterised data held in the various tables there
is a multi-extension FITS file for each target (targetname.fits). Each FITS file holds
thumbnail images of the target and any spectral observations as additional image extensions. The FITS content is described in more detail
here .
Click on the table name
for more information and to view the parameters stored in each table.
| Table name |
Description |
| TARGET | the master target list |
| SPECTRA | redshifts and observational data |
| TWOMASS | 2MASS input catalogue J, H and K |
| SUPERCOS | SuperCOSMOS bright galaxies Bj and R |
| FSC | sources from the IRAS FAINT Source Catalogue |
| RASS | candidate AGN from the ROSAT All-Sky Survey |
| HIPASS | sources from the HIPASS HI survey |
| DURUKST | extension to Durham/UKST galaxy survey |
| SHAPLEY | galaxies from the Shapley supercluster |
| DENISI | galaxies from DENIS I < 14.85 |
| DENISJ | galaxies from DENIS J < 13.85 |
| AGN2MASS | candidate AGN from the 2MASS red AGN survey |
| HES | candidate QSOs from the Hamburg/ESO Survey |
| NVSS | candidate QSOs from NVSS |
| SUMSS | bright radio sources from SUMSS |
Home |
Intro |
Schema |
Access |
FITS files
WFAU, Institute for Astronomy,
Royal Observatory, Blackford Hill
Edinburgh, EH9 3HJ, UK
Tel +44 131 668 8356 (office)
or +44 131 668 8100 (switchboard)
6dfdata@aao.gov.au
26/8/2008
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