Electronic Tables


In order to judge the quality of the datacubes, we defined a complete set of parameters that cover the basic scientific data properties as described in DR article. The corresponding QC tables and the main sample table are linked below for download in a special CSV and standard FITS table format together with a associated text files with further details on the content of the table.

A description of the CALIFA table format is available and we recommend to use the FITS tables in conjunction with the TOPCAT table viewer.


Content FITS table CSV table Table description
DR1 sample DR1_sample.fits DR1_sample.csv DR1_sample.txt
V500 QC parameters DR1_V500_QC_param.fits DR1_V500_QC_param.csv DR1_V500_QC_param.txt
V1200 QC parameters DR1_V1200_QC_param.fits DR1_V1200_QC_param.csv DR1_V1200_QC_param.txt


VO Table access and queries


The table above are also accessible through the VO based on the Table Access Protocal (TAP) and can be directly queried and retrieved with TOPCAT at the url http://dc.g-vo.org/tap, where the two QC control tables are combined into the califadr1.cubes table and the DR1 sample table is available as califadr1.objects.

All the available tables and their schemata can checked in TOPCAT or at the this link: CALIFA VO tables

More sophisticated queries can be issued than in the fixed web from of the DR1 retrieval tool. Below are a few example queries using ADQL linked through a VO web interface, but can also used in TOPCAT directly:


Many more complex queries can be generated from the available tables and can be even more expanded when the CALIFA sample characterization paper is available and its associated tables. Note that selecting the 'accref' column as the only column of the queried table allows to use it for mass download of datasets with 'wget' as shown in the last example above.


Direct VO access to CALIFA spectra using SSAP


Individual spectra from the cubes are exposed via SSAP; the service's IVORN is ivo://org.gavo.dc/califa/q/s. User friendly clients are splat or VOSpec as examples.
Extensive tutorials to use these tools are available on the homepages of those projects. The most convenient way to access CALIFA spectra is to just enter one of the target galaxy names or a specific coordinate in an all-VO search.

For deeper analysis you should note, however, that the individual spectra obtained in this way are not statistically independent of each other.