astro-ph.EP
The HD 191939 Exoplanet System is Well-Aligned and Flat
Jack Lubin Erik A. Petigura Judah Van Zandt Corey Beard Fei Dai Samuel Halverson Rae Holcomb Andrew W. Howard Howard Isaacson Jacob Luhn Paul Robertson Ryan A. Rubenzahl Gudmundur Stefansson Joshua N. Winn Max Brodheim William Deich Grant M. Hill Steven R. Gibson Bradford Holden Aaron Householder Russ R. Laher Kyle Lanclos Joel Payne Arpita Roy Roger Smith Abby P. Shaum Christian Schwab Josh Walawender