I, and everyone in my family, pronounce aunt to rhyme with taunt. I remember as a small child informing my friends that "ants" are small black creatures that run around on the ground, and I wasn't related to ants, but I had aunts.

My question is: what is the history of these pronunciations, and are there any legitimate studies on where each pronunciation is the most prevalent?

Edit: To answer questions, I found this on Wiktionary. The first audio file under AAVE is how I say aunt.