>> From what I remember in HTML 101
Ditto what tedster said. Some implementations of the author markup aren't even valid HTML.
>> can I add myself as the author for the articles?
If you own the content, then I don't see why not. On the other hand, I think the whole concept of author tags is to help Google+. If you have any followers or any real presence on G+, then you might benefit from higher rankings for personalised search.