ABOUT THE GALACTIC CENTER GROUP
Who we are
The UCLA Galactic Center Group (GCG) is led by the Principal Investigator and Professor of Physics and Astronomy Andrea Ghez. It is a
collaboration of astronomy and physics researchers from UCLA, California Institute of Technology, W. M. Keck
Observatory, University of Hawaii, and Thirty Meter Telescope. The GCG research focuses on investigating
the innermost regions of the Milky Way and its central supermassive black hole at the highest angular resolution possible,
with which we aim at understanding the interplay between the formation and evolution of galaxies and their central supermassive black holes.
What we do
Over the past two decades, dramatic advances in technology have led to order-of-magnitude improvements
in imaging resolution and the UCLA Galactic Center Group has been consistently at the forefront of these advances
with the Keck telescopes. One of the most important early outcomes was the co-discovery of
the presence of a supermassive black hole at the center of our Galaxy. The rapidity with which
these stars move on small-scale orbits indicate the presence a source of tremendous
gravity and provides the best evidence that supermassive black holes,
which confront and challenge our knowledge of fundamental physics, do
exist in the Universe. We study stellar populations, gas, and dust within the central one parsec
and have discovered that what happens near a supermassive back hole is
quite different than what theoretical models have predicted. Our discoveries are changing many of our notions on
how not only other spiral galaxies but also other types of galaxies form and evolve over time.
The Founders
The Galactic Center Group was founded by UCLA Astronomers Professor Andrea Ghez, Professor Eric Becklin,
and Professor Mark Morris, to enhance and promote our knowledge of the innermost region of our Galaxy.
Top: Galactic Center Group members during the 20th anniversary celebration in October 2014.
Middle: Orbits of stars within the central
one parsec revealing an object of tremendous gravity at the Galactic center.
Bottom: Founders of the UCLA Galactic Center Group: Andrea Ghez, Erick Becklin, Mark Morris.