# AUTHOR: CALIFA collaboration 
# SOURCE: NED, SDSS DR7, own analysis
# DATE: 2014-09-09
# VERSION: 1.0
# COLAPRV: none 
# PUBAPRV: none 

This table provides some basic values for the CALIFA sample. 
The name and the infall-corrected values are from NED. RA, Dec, pure redshift, 
isophotal diameter, and Petrosian r-band magnitude are from the SDSS DR7. 
The Vmax values have been calculated based on pure redshift and apparent diameter. 


The redshifts in column 11 have been obtained from NED from the "V (Virgo + GA + Shapley)" velocities. 
See NED and Mould et al., 2000, ApJ, 529, 786 for details on the derivation. 


This table also provides the information needed for applying volume corrections to
the CALIFA sample. The table column vmax specifies the CALIFA survey volume per
object, expressed in Mpc^3. Applying a volume correction means that each galaxy
is assigned a weight of 1/vmax in summations or averages. 

Note that these values are for the full mother sample; for application 
to the subset of spectroscopically observed objects each vmax needs to be 
multiplied with the fraction of the mother sample covered. 

Assumptions that went into the calculation of vmax: 
* The CALIFA geometric footprint of 8700 deg^2 
* Cosmological angular size distances are calculated adopting H0 = 70 km/s/Mpc,  
  Omega_m = 0.3, Omega_lambda = 0.7. 
* Angular isophotal sizes were computed as isoA_r = Diso / d_A, 
  i.e. changes in size due to redshifting in the spectrum were neglected.
* The two CALIFA galaxies (#938, #939) added to the sample by hand have been 
  assigned a vmax value of 1e6 to avoid potential errors. For statistical work 
  they should be ignored.