HELP DMU22 SPIRE blind catalogues, Red source catalgoues

The `Red catalogues`, containing all the Red SPIRE sources found using a similar method as described in Asboth et al. 2016.

- http://hedam.lam.fr/HELP/dataproducts/dmu22/dmu22_red_source
# ![HELP LOGO](https://avatars1.githubusercontent.com/u/7880370?s=75&v=4) HELP Blind catalogues (dmu19)

This is a data product of the Herschel Extragalactic Legacy Project ([HELP](http://www.herschel.sussex.ac.uk))

The full files which are not stored in the Git repository can be downloaded from HeDaM:

- [http://hedam.lam.fr/HELP/dataproducts/dmu22](http://hedam.lam.fr/HELP/dataproducts/dmu22)

- dmu22_red_source/data/`"name field"_SPIRE_map_6ac.fits` is the fits file for the 500um map with 6 arcsec pixels
- dmu22_red_source/data/`"name field"_SPIRE_D_map.fits` is the D-map
- dmu22_red_source/data/`"name field"_SPIRE_D_cat.fits` The location of the 3 sigma peaks in the D-map
- dmu22_red_source/data/`"name field"_SPIRE_D_MF_cat.fits` The flux desnsity of all the sources detected (3 sigma) in the D-map
- dmu22_red_source/`red_validation.ipynb` Selects all 500um red sources with 3 sigma detection and S500 > 52mJy, using three different methodes. This notebook should be used (and potentially adjusted)to select a reliable sample of red sources. 

Where "name field" can be e.g. "ELAIS-N1". 
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The red sources are selected by finding peaks in a difference map (D) between the 500um and 250um map. The method is described step by step in /dmu22/dmu22_red_source/make_red.ipynb and is bases on Asboth et al. 2016. 


**Authors**: Steven Duivenvoorden

 ![HELP LOGO](https://avatars1.githubusercontent.com/u/7880370?s=75&v=4)
 
For a full description of the database and how it is organised in to `dmu_products` please see the top level [readme](../readme.md).
 
The Herschel Extragalactic Legacy Project, ([HELP](http://herschel.sussex.ac.uk/)), is a [European Commission Research Executive Agency](https://ec.europa.eu/info/departments/research-executive-agency_en)
funded project under the SP1-Cooperation, Collaborative project, Small or medium-scale focused research project, FP7-SPACE-2013-1 scheme, Grant Agreement
Number 607254.

[Acknowledgements](http://herschel.sussex.ac.uk/acknowledgements)