b'THE OBSERVATORIES\x1f\x1f Carnegie InvestigatorsAstronomy Staff Scientists Research AssociatesANDREW BENSON CHRISTOPHER BURNS, Research Observatories staff, Pasadena, CA (kneeling onREBECCA BERNSTEINAssociateright, from left to right): Dan Kelson, Charlie Hull,ALAN DRESSLER, Staff Member Emeritus JEFFREY CRANE, Staff AssociateJUNA KOLLMEIER DAN KELSON, Staff AssociateScott Rubel. First row (from left) Jerson Castillo, LuisNICHOLAS KONIDARIS BARRY MADORE, Senior Research Ochoa, Leon Aslan, Xialong Du, Stefanie Wachter,PATRICK MCCARTHYAssociate Emeritus1Gwen Rudie, Ian Thompson, Sharon Kelly, AliciaANDREW MCWILLIAM Las Campanas Research StaffLanz, Christoph Birk, Erica Clark, Kristi Macklin,JOHN MULCHAEY, Director LEOPOLDO LIRA INFANTE, Director, Barry Madore, Josh Simon, Andrew Newman, JohnANDREW NEWMANLas Campanas ObservatoryMulchaey, Andrew Benson, Sung Ri Sok, StephenAUGUSTUS OEMLER, JR., Director Emeritus DAVID OSIP, Associate Director, Las77Shectman, Alan Dressler, Beverly Fink, Irina Strelnik.ERIC PERSSON, Staff Member EmeritusCampanas ObservatorySecond row: Shannon Patel, Earl Harris, SharonANTHONY PIRO MARK PHILLIPS, Director Emeritus, Wang, Alex Ji, Decker French, Tom Cooper,GEORGE PRESTON, Director EmeritusLas Campanas ObservatoryPavaman Bilgi, Tom Connor, Becky Lynn, RosalieMICHAEL RAUCH Las Campanas Resident AstronomerMcGurk, Shuvo Uddin, Louis Abramson, PaulGWEN RUDIE NIDIA MORRELL, Resident AstronomerCollison, Andy McWilliam, Tony Piro, Alan Uomoto,FRANOIS SCHWEIZER, Staff Member Jeff Rich, Kit Whitten, Jeff Crane. Emeritus 1To December 31, 2018, retiredSTEPHEN SHECTMANJOSHUA SIMONIAN THOMPSONRAY WEYMANN, Director Emeritus\x1e \x1e LAS CAMPANAS\x1f\x1fChilean staffmountain (left, first row left to right): Edgar Vliz, Danilo Gonzlez, Hugo Rivera, Juan Carrasco, Erwin Guerra, Anglica Len, Patricio Pinto, Francesco di Mille, Gastn Gutirrez, Gabriel Prieto. Second row: Miguel Ocaranza, Carlos Godoy, Manuel Millar, Nelson Ibacache, Konstantina Boutsia, Michael Vicencio, Jorge Rojas, Felipe Besser, Marcelo Rodriguez, Osvaldo Ponce, Hctor Balbontn, Francisco Mery, Povilas Palunas, Juan Gallardo.Chilean staffEl Pino (right, first row from left to right) Javiera Rey, Daniel Briones, Silvia Muoz, Nelda Juica, Reinaldo Vega, Herman Rojas, Juan Carrasco, Jos Lizardi. Second row: Ivn Barraza, Javier Escobar, Jilberto Carvajal, Jonathan Medalla, Enrico Congiu, Roberto Bermdez.'