CA, N.Y. — A noted astrophysicist and observatory administrator,
widely experienced in international collaboration, has been chosen to
direct the National Astronomy and Ionosphere Center (NAIC), whose
main facility is the Arecibo Observatory in Puerto Rico, the world’s
largest, and most sensitive, single-dish radio telescope. He is
Robert L. Brown, currently deputy director of the National Radio
Astronomy Observatory (NRAO), headquartered in Charlottesville, Va.

NAIC, managed by Cornell University under a cooperative agreement
with the National Science Foundation (NSF), was created as a national
center for radio science in 1971. The 1,000-foot-diameter (305
meters) Arecibo telescope was completed in 1963 at the initiative of
Cornell electrical engineering professor William E. Gordon. NAIC and
Arecibo provide access to state-of-the-art observing for scientists
in radio astronomy, solar system radar and atmospheric studies, and
the observatory has the unique capability for solar system and
ionosphere (the atmosphere’s ionized upper layers) radar remote
sensing.

In recent years Brown has played a leading role in the international
group that is constructing the Atacama Large Millimeter Array (ALMA)
observatory in Chile. “The wonderful thing about NAIC is that it
manages the largest telescope on Earth. There are things this
telescope can do that no other facility in the world can do and won’t
be able to do for the next couple of decades,” says Brown.

“I am delighted that Bob Brown has agreed to become director of
NAIC,” says Robert Richardson, Cornell’s vice provost for research.
“He is an outstanding scientist who has the energy, enthusiasm,
leadership skills and management ability to direct the NAIC through
the next decade of challenging science.”

Martha Haynes, the Goldwin Smith Professor of Astronomy at Cornell
who heads the university’s NAIC oversight committee, praises Brown as
“able to see beyond the immediate uses of a telescope to future uses
that explore new territory. His interest in coming to NAIC is to
enable new science and to take advantage of all possible advances in
technology, in hardware, in software and in new ways of observing.”

Brown has spent more than 33 years at the NRAO, which operates major
observing facilities in West Virginia and New Mexico and is managed
by Associated Universities, Inc., for the NSF. Haynes, who heads the
board of trustees of AUI, notes that Brown has considerable
management and project experience and also has played a leading role
in developing both the concept, technical plan and international
partnership for ALMA. “But Bob has more than management skills: there
also is his science vision, rooted in his background as a theoretical
astrophysicist,” she says.

The new director, who takes over his post on May 5, succeeds Paul
Goldsmith, the J. A. Weeks Professor in the Physical Sciences at
Cornell, who stepped down last month to return to full-time research
and teaching. During his decade-long tenure, Goldsmith oversaw the
second major upgrading of the telescope, resulting in a significant
increase in the telescope’s sensitivity, a large expansion of its
frequency coverage, the addition of a one-megawatt transmitter for
radar studies of solar system bodies and an enhancement of the
telescope’s capabilities for studies of the atmosphere. These
improvements have opened up new areas of research, maintaining
Arecibo at the forefront of centimeter-wavelength radio science.

Brown believes there is “a great deal of science motivation” for
driving the telescope’s frequency range even higher. Also in the
future, Brown sees Arecibo Observatory becoming “a test bed” for two
major international radio astronomy projects planned for development
in the next decade: the Square Kilometer Array and the Low Frequency
Array. “The kinds of technology presently in use or in development at
the Arecibo Observatory will be the technology on which those two
projects depend,” he says. “As a NSF-supported national center, NAIC
should lend its technical and operations expertise to the pursuit of
these scientific programs, both of which received high ranking by the
National Research Council’s Astronomy and Astrophysics Survey
Committee.”

Brown has been both associate and deputy director of NRAO since 1985,
spearheading not only the United States involvement in ALMA, but also
managing NRAO participation in NASA’s Space Very Long Baseline
Interferometry Project. From 1977 to 1980 he was assistant director
of NRAO operations in Green Bank, and from 1984 to 1985 he was
assistant director of NRAO operations in Tucson. He received his B.A.
from the University of California-Berkeley, in 1965, and his M.S. and
his Ph.D. from the University of California-San Diego, both in 1969.
All of his degrees are in physics. At NRAO he has been involved in
studies, both theoretical and observational, of the interstellar
medium, the galactic center and distant galaxies.Brown, who says he
intends to spend “an appreciable amount of time at the telescope,”
wants to make the observatory even more accessible to the scientists
who use it. This means, he says, “providing a level of support that
is somewhat enhanced over what has been historically provided. We
need staff to assist potential users in all phases of scientific
research, from proposal writing to calibration and data reduction.”
He adds, “What could expand Arecibo’s usage even further is a
capability for broad question-solving by letting researchers anywhere
access archival data, perhaps through the National Virtual
Observatory initiative, or by having the observatory staff undertake
observations on behalf of specific users.”

In addition, beginning in 2005, the observatory will face the
challenge of processing huge quantities of data produced by the
Arecibo L-band Feed Array (ALFA), which will revolutionize the
ability to survey the sky quickly and result in the discovery of
thousands of new pulsars and galaxies. “ALFA will bring a change in
paradigm, whereby surveys deliver unique data products, unachievable
with any other telescope,” says Brown.

Although fiber-optic links to the United States mainland have made
possible the remote operation of the telescope from computers in most
of the world’s universities, Brown believes it is essential to
encourage more users to visit the observatory. “Bringing people to
the telescope has the advantage that people who are physically in
Arecibo will interact both personally and professionally with the
staff, which allows the staff to sense where problems lie, and to
work with visiting users on priorities and developments.”

The eight-person search committee that selected Brown for the NAIC
directorship from a worldwide candidate list was led by Joseph Burns,
the Irving Porter Church Professor of Engineering and professor of
astronomy at Cornell. Says Burns: “He has a big job facing him. It’s
a unique facility and it needs a unique person to lead it — someone
who is going to be a good scientific leader and yet adept in a
political world who can be sensitive to the challenges of operating a
complex facility in Puerto Rico, far from the Cornell campus, and
attuned to the modern way of doing astronomy.”

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The web version of this release, with a photo, may be found at
http://www.news.cornell.edu/releases/Jan03/NAIC.director.deb.html