The LHS 1678 System: Two Earth-sized Transiting Planets and an Astrometric Companion Orbiting an M Dwarf Near the Convective Boundary at 20 pc

Silverstein, Michele L. and Schlieder, Joshua E. and Barclay, Thomas and Hord, Benjamin J. and Jao, Wei-Chun and Vrijmoet, Eliot Halley and Henry, Todd J. and Cloutier, Ryan and Kostov, Veselin B. and Kruse, Ethan and Winters, Jennifer G. and Irwin, Jonathan M. and Kane, Stephen R. and Stassun, Keivan G. and Huang, Chelsea and Kunimoto, Michelle and Tey, Evan and Vanderburg, Andrew and Astudillo-Defru, Nicola and Bonfils, Xavier and Brasseur, C. E. and Charbonneau, David and Ciardi, David R. and Collins, Karen A. and Collins, Kevin I. and Conti, Dennis M. and Crossfield, Ian J. M. and Daylan, Tansu and Doty, John P. and Dressing, Courtney D. and Gilbert, Emily A. and Horne, Keith and Jenkins, Jon M. and Latham, David W. and Mann, Andrew W. and Matthews, Elisabeth and Paredes, Leonardo A. and Quinn, Samuel N. and Ricker, George R. and Schwarz, Richard P. and Seager, Sara and Sefako, Ramotholo and Shporer, Avi and Smith, Jeffrey C. and Stockdale, Christopher and Tan, Thiam-Guan and Torres, Guillermo and Twicken, Joseph D. and Vanderspek, Roland and Wang, Gavin and Winn, Joshua N.

AJ