David Helfand
Professor
Astronomy Department
Columbia University
United States of America
Biography
Professor Helfand received his B.A. from Amherst College, M.S. in Physics, and his Ph.D. in Astronomy from the University of Massachusetts. He has also been a visiting scientist at the Danish Space Research institute and a Sackler Distinguished visiting astronomer at Cambridge. He has been a professor in both Physics and Astronomy, and is currently Chair of the Department of Astronomy.
Research Interest
Neutron stars, X-ray background, radio surveys
