Each update for which files have been replaced or removed has a corresponding directory in
     ./previous
that contains the replaced and/or removed files. 

The top-level directory (where this README is located) contains the newest version of all files.

01-APR-2019
-----------

- replaced previous kSZ map with new map using Battaglia (2017) gas density 
  profiles ("ksz.fits"; z<4.5; websky)
- added patchy kSZ map from Alvarez et al. (2016) with tau=0.06 
  ("ksz_patchy.fits"; z>5.5; uncorrelated with websky)
- replaced kappa.fits with a version for which halos and field are both 
  correlated with other components and halo catalog; previous version had 
  uncorrelated field

22-APR-2019
-----------
  
- replaced previous kappa map (kap.fits) with new one (kap.fits) that contains 
  both z>4.5 (Gaussian) and z<4.5 (websky halo+field) components with LPT grid 
  artefacts removed
- added new maps containing only the z>4.5 Gaussian component (kap_gt4.5.fits)
  and z<4.5 component (kap_lt4.5.fits)

10-MAY-2019
-----------
  
- this update did not remove or replace any existing files
- added lensed and unlensed T/Q/U maps from a random realization of the 
  unlensed CMB (unlensed_alm.fits) that is lensed by kap.fits to generate
  a lensed CMB (lensed_alm.fits). For more details see the webskylensing 
  software developed by A. van Engelen at 
     https://github.com/ajvanengelen/webskylensing 

17-MAY-2019
-----------
  
- replaced halo_mass_completion.txt with version that 
  has units in header and updated README 

19-SEP-2019
-----------

- replaced readhalos.py with version commented to indicate that the conversion from
  radius to mass is for M200m, the mass contained within a sphere with a mean density
  200 times the cosmic mean. With this definition, the halo abundance matches that of 
  Tinker et al. (2010). 

08-OCT-2019
-----------

- replaced CIB maps with new versions using the HerMES (https://arxiv.org/abs/1208.5049) best fit halo model paramaters, and implemented a redshift dependent dust temperature; previous versions had used a redshift independent dust temperature, and a mixture of Planck 2013 and HerMES best fit halo model paramaters.

31-OCT-2019
-----------

- this update did not remove or replace any existing files
- added linear ISW map (isw.fits) determined by integrating the linear potential along the line of sight. It therefore contains only linear fluctuations -- the halo catalogs were not used. 

05-NOV-2019
-----------

- this update replaced kap.fits and kap_lt4.5.fits with new more accurate versions. 2LPT is now used instead of 1LPT, and field particles that subtend an angular size greater than one pixel are split into smaller sub-volumes before being added to the map

27-JAN-2020
-----------

- updated kSZ with new more accurate versions. 2LPT is now used instead of 1LPT, and field particles that subtend an angular size greater than one pixel are split into smaller sub-volumes before being added to the map. Field component is multiplied by f_e=0.9 from Park et al. Illustris measurement, accounting for 10% in neutral gas and stars
- lensed and unlensed cmb changed to match kappa changes on Nov 5th