TESS-Keck Survey. IX. Masses of Three Sub-Neptunes Orbiting HD 191939 and the Discovery of a Warm Jovian plus a Distant Substellar Companion

Lubin, Jack and Van Zandt, Judah and Holcomb, Rae and Weiss, Lauren M. and Petigura, Erik A. and Robertson, Paul and Akana Murphy, Joseph M. and Scarsdale, Nicholas and Batygin, Konstantin and Polanski, Alex S. and Batalha, Natalie M. and Crossfield, Ian J. M. and Dressing, Courtney and Fulton, Benjamin and Howard, Andrew W. and Huber, Daniel and Isaacson, Howard and Kane, Stephen R. and Roy, Arpita and Beard, Corey and Blunt, Sarah and Chontos, Ashley and Dai, Fei and Dalba, Paul A. and Gary, Kaz and Giacalone, Steven and Hill, Michelle L. and Mayo, Andrew and Močnik, Teo and Kosiarek, Molly R. and Rice, Malena and Rubenzahl, Ryan A. and Latham, David W. and Seager, S. and Winn, Joshua N. and Gary, Kaz

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