Obliquities of hot jupiter host stars: Evidence for tidal interactions and primordial misalignments

Simon Albrecht, Joshua N. Winn, John A. Johnson, Andrew W. Howard, Geoffrey W. Marcy, R. Paul Butler, Pamela Arriagada, Jeffrey D. Crane, Stephen A. Shectman, Ian B. Thompson, Teruyuki Hirano, Gaspar Bakos, Joel D. Hartman