I am interested in astrophysics/cosmology, but I attend a liberal arts college where no astrophysics/cosmology courses have been offered. The college is well reputed as an undergraduate institution, but not specifically in physics. I have taken all the physics classes that we offer and have done research year-round, but none of it was in astrophysics/cosmology.
Will my application be harmed if I apply for a field that I have no experience in? Should I just apply for a field which I have a stronger background in?