diff --git a/paper/paper.md b/paper/paper.md
index 66b8df7..f125853 100644
--- a/paper/paper.md
+++ b/paper/paper.md
@@ -6,6 +6,9 @@ tags:
 - astronomy
 - Galactic magnetic field
 - Milky Way
+- non-thermal radiation 
+- CMB foreground
+- Cosmic rays
 authors:
 - name: Sebastian Hutschenreuter
   orcid: 0000-0002-6952-9688