Implementation of Saldana-Lopez2021 ebl model

[IlariaViale]

I added the file ebl_saldana-lopez21.fits.gz to the repo at agnpy/data/ebl_models. It contains data from the work of Saldana-Lopez et al. (2021) [link: https://www.ucm.es/blazars/ebl] I performed some basic changes to the scripts agnpy/absorption/absorption.py and agnpy/tests/test_absorption.py in order to implement and test the new model.

[cosimoNigro]

Thanks a lot @IlariaViale, will review it soon.

[codecov[bot]]

Codecov Report

Merging #120 (58c9af9) into master (86a28d4) will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #120   +/-   ##
=======================================
  Coverage   96.99%   96.99%           
=======================================
  Files          30       30           
  Lines        2233     2233           
=======================================
  Hits         2166     2166           
  Misses         67       67           

Flag	Coverage Δ
unittests	96.99% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
agnpy/absorption/absorption.py	96.36% <100.00%> (ø)
agnpy/tests/test_absorption.py	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 86a28d4...58c9af9. Read the comment docs.

[cosimoNigro]

Thanks @IlariaViale, looks already good to me, it would be good if you can add the Saldana-Lopez paper to the bibliography in the docs.

Then we are ready to merge.

[cosimoNigro]

@IlariaViale just one last thing, can you update the documentation page https://agnpy.readthedocs.io/en/latest/absorption.html#extragalactic-background-light and add a reference to the new model that is now available? Can you update the snippet plotting all the EBL models as well? The .rst file for the documentation page is here https://github.com/cosimoNigro/agnpy/blob/master/docs/absorption.rst the snippet, that is executed when the docs are built, is here https://github.com/cosimoNigro/agnpy/blob/master/docs/snippets/ebl_models.py

Thanks Ilaria!

[cosimoNigro]

Thanks @IlariaViale, welcome to the development team :)