Research Interests

I am a radio astronomer who studies the astrophysics of extragalactic radio sources, quasars, galaxies, and active galactic nuclei as well as their applications to cosmology and the large scale structure of the Universe. I am also concerned with radio astronomy instrumentation, especially as applied to high-resolution radio interferometry and aperture synthesis, and I am interested in the history of radio astronomy.

Membership Type


Election Year


Primary Section

Section 12: Astronomy

Secondary Section

Section 13: Physics