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Catherine
Wolfe Bruce Gold Medal
Martin Harwit
Cornell University, USA
Martin
Harwit is a pioneer of infrared astronomy and one of the most original
thinkers in the field. As one of the "new astronomers"
in the 1960s, he explored the far infrared spectrum from space and
helped open up a new window on the universe. His wide-ranging interests
produced some of the first observations of young massive stars in
their placental cocoons, studies of the interplanetary particles
surrounding the Sun, and the important calibration of absolute fluxes
from the central regions of the Galaxy. He opened up new research
areas well before they became fashionable and set the stage for
the explosive growth of infrared astronomy in the last two decades
of the 20th century.
Martin's
group at Cornell made seminal contributions to our understanding
of the Galaxy through its observations of far infrared lines from
molecular clouds and the interstellar medium. He was a driving force
behind important programs using the Infrared Space Observatory satellite
to study the far infrared background radiation and observations
of interstellar water, a cooling agent in warm interstellar regions
such as the Orion nebula. He distinguished himself as a scientist
through a long career combining breadth with depth, delving into
many different aspects of astrophysics.
Just
as significantly, Harwit's books have had an enormous impact beyond
his research specialty. His textbook, Astrophysical Concepts, influenced
generations of young students by introducing them to the principles
needed for a deep understanding of modern astrophysics. His book,
Cosmic Discovery, has been equally influential among policy makers
seeking the best ways to invest in new astronomical research. An
important outgrowth of his approach was to show that rapid growth
of astronomical knowledge resulted primarily from discoveries made
by non-astronomers using their unique technical skills to examine
the universe in new ways. It is now accepted wisdom that the promise
of a new observing approach increases proportionally to its exploration
of the uncharted territory known from Harwit's writing as "parameter
space."
Harwit
carried his high standards for scholarship to the Air and Space
Museum in Washington, D.C., where he served as Director from 1987
to 1995. While there, he influenced millions of visitors through
his thoughtful approach to exhibits that illuminated for the public
how important advances in science are made. His courageous advocacy
using historical research to formulate public policy is a fine example
of putting principle above politics despite enormous popular resistance.
Similar advocacy of scholarship as applied to other causes currently
in the public arena will be needed to preserve the rich society
we call civilization against threats both natural and man made.
His
original ideas, scholarship, and thoughtful advocacy are the elements
that helped make modern astronomy one of the richest and most influential
of sciences. It is with admiration and deep respect that the Astronomical
Society of the Pacific awards the 2007 Bruce Medal for lifetime
achievement to Martin Harwit.
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