Peter Goldreich
Encyclopedia
Peter Goldreich is an American astrophysicist
Astrophysics
Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties of celestial objects, as well as their interactions and behavior...

 whose research focuses on celestial mechanics
Celestial mechanics
Celestial mechanics is the branch of astronomy that deals with the motions of celestial objects. The field applies principles of physics, historically classical mechanics, to astronomical objects such as stars and planets to produce ephemeris data. Orbital mechanics is a subfield which focuses on...

, planetary rings, helioseismology
Helioseismology
Helioseismology is the study of the propagation of wave oscillations, particularly acoustic pressure waves, in the Sun. Unlike seismic waves on Earth, solar waves have practically no shear component . Solar pressure waves are believed to be generated by the turbulence in the convection zone near...

 and neutron star
Neutron star
A neutron star is a type of stellar remnant that can result from the gravitational collapse of a massive star during a Type II, Type Ib or Type Ic supernova event. Such stars are composed almost entirely of neutrons, which are subatomic particles without electrical charge and with a slightly larger...

s. He is currently the Lee DuBridge Professor of Astrophysics and Planetary Physics at California Institute of Technology
California Institute of Technology
The California Institute of Technology is a private research university located in Pasadena, California, United States. Caltech has six academic divisions with strong emphases on science and engineering...

. Since 2005 he has also been a professor at the Institute for Advanced Study
Institute for Advanced Study
The Institute for Advanced Study, located in Princeton, New Jersey, United States, is an independent postgraduate center for theoretical research and intellectual inquiry. It was founded in 1930 by Abraham Flexner...

 in Princeton, New Jersey
Princeton, New Jersey
Princeton is a community located in Mercer County, New Jersey, United States. It is best known as the location of Princeton University, which has been sited in the community since 1756...

. Asteroid 3805 Goldreich
3805 Goldreich
3805 Goldreich is a main-belt asteroid discovered on February 28, 1981 by Bus, S. J. at Siding Spring.- External links :*...

 is named after him.

Career

Goldreich received a bachelor of science in engineering physics from Cornell University
Cornell University
Cornell University is an Ivy League university located in Ithaca, New York, United States. It is a private land-grant university, receiving annual funding from the State of New York for certain educational missions...

 in 1960, and obtained a Ph.D. from Cornell in 1963 under the supervision of Thomas Gold
Thomas Gold
Thomas Gold was an Austrian-born astrophysicist, a professor of astronomy at Cornell University, a member of the U.S. National Academy of Sciences, and a Fellow of the Royal Society . Gold was one of three young Cambridge scientists who in the 1950s proposed the now mostly abandoned 'steady...

. In 1963 and 1964 Goldreich was a postdoctoral fellow at Cambridge University. From 1964 to 1966 he was an Assistant Professor of Astronomy & Geophysics at UCLA. Goldreich joined the faculty at Caltech in 1966 as an associate professor. He later became a full professor
Professor
A professor is a scholarly teacher; the precise meaning of the term varies by country. Literally, professor derives from Latin as a "person who professes" being usually an expert in arts or sciences; a teacher of high rank...

 in 1969 while remaining at Caltech, and in 1981 he became the Lee A. DuBridge Professor of Astrophysics & Planetary Physics also at Caltech.

Scientific Accomplishments

Goldreich and Alar Toomre
Alar Toomre
Alar Toomre is an Estonian-born astronomer and mathematician who immigrated to the United States in 1949. He is a professor of applied mathematics at the Massachusetts Institute of Technology...

 first described the process of polar wander
Polar wander
Polar wander is the movement of the North and South Poles of the Earth with respect to the continents. This motion can be divided into two components: that due to continental drift , and true polar wander, in which the mantle and the crust rotate together into new orientations....

 in a 1969 paper, although evidence of paleomagnetism
Paleomagnetism
Paleomagnetism is the study of the record of the Earth's magnetic field in rocks. Certain minerals in rocks lock-in a record of the direction and intensity of the magnetic field when they form. This record provides information on the past behavior of Earth's magnetic field and the past location of...

 was not discovered until later. Goldreich collaborated with George Abell
George Ogden Abell
George Ogden Abell was an astronomer at UCLA. He worked as a research astronomer, teacher, administrator, popularizer of science and education, and skeptic. Abell received his B.S. , M.S. and Ph.D. from the California Institute of Technology...

 to conclude that planetary nebulae evolved from red giant
Red giant
A red giant is a luminous giant star of low or intermediate mass in a late phase of stellar evolution. The outer atmosphere is inflated and tenuous, making the radius immense and the surface temperature low, somewhere from 5,000 K and lower...

 stars, a view that is now widely accepted. In 1979 Goldreich, along with Scott Tremaine
Scott Tremaine
Scott Duncan Tremaine is a Canadian-born astrophysicist. He is a fellow of the Royal Society of London, the Royal Society of Canada and the National Academy of Sciences. Tremaine is widely regarded as one of the world's leading astrophysicists for his contributions to the theory of solar system...

 predicted that Saturn
Saturn
Saturn is the sixth planet from the Sun and the second largest planet in the Solar System, after Jupiter. Saturn is named after the Roman god Saturn, equated to the Greek Cronus , the Babylonian Ninurta and the Hindu Shani. Saturn's astronomical symbol represents the Roman god's sickle.Saturn,...

's F ring was maintained by shepherd moons, a prediction that would be confirmed by observations in 1980. They also predicted that Uranus
Uranus
Uranus is the seventh planet from the Sun. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. It is named after the ancient Greek deity of the sky Uranus , the father of Cronus and grandfather of Zeus...

' rings were held in place by similar shepherd moons, a prediction that was confirmed in 1986. Goldreich, along with Tremaine predicted planetary migration in 1980, which would later be invoked to explain hot jupiter
Hot Jupiter
Hot Jupiters are a class of extrasolar planet whose mass is close to or exceeds that of Jupiter...

s.

Awards and honors

  • Woodrow Wilson
    Woodrow Wilson
    Thomas Woodrow Wilson was the 28th President of the United States, from 1913 to 1921. A leader of the Progressive Movement, he served as President of Princeton University from 1902 to 1910, and then as the Governor of New Jersey from 1911 to 1913...

     Honorary Fellowship, 1960-1961
  • Andrew Dixon White Fellowship, 1960-1961
  • National Foundation Fellowship, 1961-1963
  • National Academy of Sciences, National Research Council Postdoctoral Fellowship, 1963-1964
  • Sloan Foundation Fellowship, 1968-1970
  • Elected to National Academy of Sciences
    United States National Academy of Sciences
    The National Academy of Sciences is a corporation in the United States whose members serve pro bono as "advisers to the nation on science, engineering, and medicine." As a national academy, new members of the organization are elected annually by current members, based on their distinguished and...

    , 1972
  • Elected to American Academy of Arts and Sciences
    American Academy of Arts and Sciences
    The American Academy of Arts and Sciences is an independent policy research center that conducts multidisciplinary studies of complex and emerging problems. The Academy’s elected members are leaders in the academic disciplines, the arts, business, and public affairs.James Bowdoin, John Adams, and...

    , 1973
  • Henry Norris Russell Lectureship
    Henry Norris Russell Lectureship
    The Henry Norris Russell Lectureship is awarded each year by the American Astronomical Society in recognition of a lifetime of excellence in astronomical research.-Previous lecturers:This list of lecturers is from the American Astronomical Society's website....

     of the American Astronomical Society
    American Astronomical Society
    The American Astronomical Society is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC...

    , 1979
  • California
    California
    California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

     Scientist of the Year, 1981
  • Chapman
    Sydney Chapman (astronomer)
    Sydney Chapman FRS was a British mathematician and geophysicist. His work on the kinetic theory of gases, solar-terrestrial physics, and the Earth's ozone layer has inspired a broad range of research over many decades....

     Medal of the Royal Astronomical Society
    Royal Astronomical Society
    The Royal Astronomical Society is a learned society that began as the Astronomical Society of London in 1820 to support astronomical research . It became the Royal Astronomical Society in 1831 on receiving its Royal Charter from William IV...

    , 1985
  • Brouwer Award
    Brouwer Award (Division on Dynamical Astronomy)
    The Dirk Brouwer Award, usually known as the Brouwer Award, is awarded annually by the Division on Dynamical Astronomy of the American Astronomical Society for outstanding lifetime achievement in the field of dynamical astronomy...

     of the Division on Dynamical Astronomy
    Division on Dynamical Astronomy
    The Division on Dynamical Astronomy is a branch of the American Astronomical Society that focuses on the advancement of all aspects of dynamical astronomy, including celestial mechanics, solar system dynamics, stellar dynamics, as well as the dynamics of the interstellar medium and galactic...

     of the American Astronomical Society
    American Astronomical Society
    The American Astronomical Society is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC...

    , 1986
  • Amos de Shalit Lecturer at the Weizmann Institute, 1986
  • Thomas Gold
    Thomas Gold
    Thomas Gold was an Austrian-born astrophysicist, a professor of astronomy at Cornell University, a member of the U.S. National Academy of Sciences, and a Fellow of the Royal Society . Gold was one of three young Cambridge scientists who in the 1950s proposed the now mostly abandoned 'steady...

     Lecturer at Cornell University
    Cornell University
    Cornell University is an Ivy League university located in Ithaca, New York, United States. It is a private land-grant university, receiving annual funding from the State of New York for certain educational missions...

    , 1987
  • Regents Fellow, Smithsonian Institution
    Smithsonian Institution
    The Smithsonian Institution is an educational and research institute and associated museum complex, administered and funded by the government of the United States and by funds from its endowment, contributions, and profits from its retail operations, concessions, licensing activities, and magazines...

    , 1988-1990
  • Miller Professorship, University of California, Berkeley
    University of California, Berkeley
    The University of California, Berkeley , is a teaching and research university established in 1868 and located in Berkeley, California, USA...

    , 1990

  • Gerard P. Kuiper Prize
    Gerard P. Kuiper Prize
    The Gerard P. Kuiper Prize is awarded annually by the Division for Planetary Sciences of the American Astronomical Society for outstanding lifetime achievement in the field of planetary science. The prize is named for Gerard P. Kuiper.Kuiper Prize winners:...

     of the Division for Planetary Science, American Astronomical Society, 1992
  • Morris Loeb Lecturer, Harvard University
    Harvard University
    Harvard University is a private Ivy League university located in Cambridge, Massachusetts, United States, established in 1636 by the Massachusetts legislature. Harvard is the oldest institution of higher learning in the United States and the first corporation chartered in the country...

    , 1992
  • Gold Medal of the Royal Astronomical Society
    Gold Medal of the Royal Astronomical Society
    -History:In the early years, more than one medal was often awarded in a year, but by 1833 only one medal was being awarded per year. This caused a problem when Neptune was discovered in 1846, because many felt an award should jointly be made to John Couch Adams and Urbain Le Verrier...

    , 1993
  • Shaw Prize
    Shaw Prize
    The Shaw Prize is an annual award first presented by the Shaw Prize Foundation in 2004. Established in 2002 in Hong Kong, it honours living "individuals, regardless of race, nationality and religious belief, who have achieved significant breakthrough in academic and scientific research or...

    , 2007

In 1995, Goldreich received the National Medal of Science
National Medal of Science
The National Medal of Science is an honor bestowed by the President of the United States to individuals in science and engineering who have made important contributions to the advancement of knowledge in the fields of behavioral and social sciences, biology, chemistry, engineering, mathematics and...

 for "his profound and lasting contributions to planetary sciences and astrophysics, providing fundamental theoretical insights for understanding the rotation of planets, the dynamics of planetary rings, pulsars, astrophysical masers, the spiral arms of galaxies, and the oscillations of the Sun".

Goldreich was awarded the Grande Médaille
Grande Médaille
The Grande Médaille of the French Academy of Sciences, established in 1997, is awarded annually to a researcher who has contributed decisively to the development of science...

 of the French Academy of Science in 2006 for his numerous contributions in the field of Astrophysics.

Goldreich received the 2007 Shaw Prize
Shaw Prize
The Shaw Prize is an annual award first presented by the Shaw Prize Foundation in 2004. Established in 2002 in Hong Kong, it honours living "individuals, regardless of race, nationality and religious belief, who have achieved significant breakthrough in academic and scientific research or...

in Astronomy "in recognition of his lifetime achievements in theoretical astrophysics and planetary sciences".

External links

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