Auto action - send mail to owner of article upon Super User edit ?

I need an E-mail auto action that sends an e-mail to the the owner of an article after the trigger joomla_onContentAfterSave - but is it possible to get the e-mail of the owner of an article with the vars of that specific trigger ?

The variables available depend entirely on the data the trigger contains. The data provided in that trigger can be found below.

manual.joomla.org/docs/building-extensions/plugins/plugin-events/content/#oncontentaftersave

context = var1
item = var2
isNew = var3
data = var4

You should be able to access all the columns in _content from var2 as that's the table where Joomla articles are stored. To get the author user id you'd use [var2_created_by] which can be used in an Email action as the To recipient since it can convert user id to email address for you.