A somewhat distant relative has passed away and he had 2 papers he wanted to publish. He was a complete recluse in his later life, but not crackpot or anything (that I'm aware of). His field of study was physics. It's completely out of my expertise but it seems legitimate (if not necessarily relevant to current literature). I believe a good course of action would be making them public on the arXiv: the papers both seem essentially ready to publish and it seems such a waste to not make it public somewhere.

Is it possible to publish with him as an author on the arXiv? (I'd prefer not to have my name on it)

Any alternative publishing suggestions are also welcome.