Add string to permalink

In my posts, I have at the end an authors avatar and descripion. I want to link from the blog list (Written by “author”) to the author description. The link would be “permalink()” plus “#author”.

Such a stupid question but can’t find the answer. How do I add #author after the permalink? I just thought <a href="<?php the_permalink().'#author' ?>"

But this doesn’t work…