Acknowledgments
The technical and operational information contained in this Handbook is the summary of the experience gained by members of the STScI ACS Team, the ACS group at the Space Telescope European Coordinating Facility (ST-ECF), and the ACS Instrument Definition Team (ACS IDT).
Members of the STScI ACS Team (2026) are:
Jenna Ryon (Branch Manager), Gagandeep Anand, Jay Anderson, Tri Astraatmadja, Roberto Avila, Marco Chiaberge1, Christopher Clark1, Yotam Cohen, Alyssa Guzman, Ray Lucas, Meaghan McDonald, and David Stark.
Past members of the STScI ACS Team are:
Amber Armstrong, Luigi Bedin, Andrea Bellini, John Biretta, Francesca Boffi, Ralph Bohlin, David Borncamp, Aparna Chitre (Maybhate), Mark Clampin, Dan Coe, Colin Cox, Guido De Marchi, Tyler Desjardins, Susana Deustua, Daiana Dinino, Van Dixon, Linda Dressel, Brian Ferguson, Andrew Fruchter, Mauro Giavalisco, Ron Gilliland, David Golimowski, Shireen Gonzaga, Norman Grogin, George Hartig, Nimish Hathi, Inge Heyer, Samantha Hoffmann, Richard Hook, Shardha Jogee, Anton Koekemoer, John Krist, Pey-Lian Lim, Jennifer Mack, Jesus Maiz-Apellaniz, Matt McMaster, Nathan Miles, Max Mutchler, Sara Ogaz, Melanie Olaes, Cheryl Pavlovsky, Vera Platais, Blair Porterfield, Charles Proffitt, Adam Riess, Russell Ryan, Kailash Sahu, Ken Sembach, Marco Sirianni, Linda Smith, Josh Sokol, Bill Sparks, Anatoly Suchkov, Deepashri Thatte, Leonardo Ubeda, Roeland van der Marel, Doug van Orsow, and Nolan Walborn.
The ST-ECF ACS group was Martin Kümmel, Harald Kuntschner, and Jeremy Walsh. The ST-ECF ceased operations on December 31, 2010.
The ACS IDT was Holland Ford (PI), Garth Illingworth (Deputy PI), George Hartig, Mark Rafal, Frank Bartko, Tom Broadhurst, Bob Brown, Chris Burrows, Ed Cheng, Mark Clampin, Jim Crocker, Paul Feldman, Marijn Franx, David Golimowski, Randy Kimble, John Krist, Tom La Jeunesse, Mike Lesser, Doug Leviton, George Miley, Marc Postman, Piero Rosati, Bill Sparks, Pam Sullivan, Zlatan Tsvetanov, Paul Volmer, Rick White, Bob Woodruff, Terence Allen, Kenneth Anderson, David Ardila, Narciso Benitez, John Blakeslee, Rychard Bouwens, Larry Bradley, Nicholas J. G. Cross, Ricardo Demarco, Tomotsugu Goto, Caryl Gronwall, Brad Holden, Nicole Homeier, Daniel Magee, André Martel, W. Jon McCann, Simona Mei, Felipe Menanteau, Gerhardt Meurer, Veronica Motta, Alessandro Rettura, Marco Sirianni, Hien Tran, and Andrew Zirm.
The contributions of Mees Fix, Warren Hack, Michele De La Pena, Nor Pirzkal1, Alan Welty, Tom Wheeler, Susan Rose, and the WFC3 team are greatly appreciated.
1 European Space Agency (ESA)