At Princeton he had his first child, Christopher Field in 1957. Four years later, he had a daughter, Natasha Field, both with former wife Sylvia Field. From 1981 onward he was married to Susan Field.
Career
He first worked on plasma oscillations and took a postdoctoral position at Harvard with Edward Mills Purcell.
His interests evolved toward cosmology[1] and the physics of the interstellar medium of galaxies. He was briefly on the faculty at Princeton before joining the faculty of the Department of Astronomy at the University of California, Berkeley where he remained until 1973. He left to become the founding director of the Center for Astrophysics (CfA) | Harvard & Smithsonian, an organizational structure that unified the Smithsonian Astrophysical Observatory (a government agency) and the Harvard College Observatory (a private institution) under a single management. Field served as Director until 1982, after which he remained the Robert Wheeler Wilson Professor of Applied Astronomy at Harvard until retirement. He was succeeded in the CfA Directorship by Irwin I. Shapiro.
In the early 1980s, Field chaired an influential National Academy of Sciences decadal study that recommended priorities for US astronomical research.[2][pageneeded] It was the third of what has become an extended series of Astronomy and Astrophysics Decadal Surveys, with format and goals now emulated by similar surveys in other disciplines.
After his incumbency as CfA Director, his research focused on the theory of accretion disks in active galactic nuclei; cosmic birefringence; magnetohydrodynamics and magnetic fields in astronomy;[3] and the structure of molecular clouds.
