Stanton J. Peale

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Stanton J. Peale
BornStanton Jerrold Peale
(1937-01-23)January 23, 1937
Indianapolis, Indiana, USA
Died May 14, 2015(2015-05-14) (aged 78)
Santa Barbara, California, USA
Citizenship United States
Alma mater Cornell University
Awards Newcomb Cleveland Prize (1979)
James Craig Watson Medal Award for Contributions to Astronomy (1982), [1]
Brouwer Award (1992)
National Academy of Sciences (2009) [1]
Kuiper Prize (2016) [2]
Scientific career
Fields Astrophysics, planetary science
Institutions Cornell University, University of California, Los Angeles, University of California, Santa Barbara

Stanton Jerrold Peale (January 23, 1937 – May 14, 2015) was an American astrophysicist, planetary scientist, and Professor Emeritus at the University of California, Santa Barbara. [1] His research interests include the geophysical and dynamical properties of planets and exoplanets.

University of California, Santa Barbara public university near Goleta, California, United States and part of the University of California system

The University of California, Santa Barbara is a public research university in Santa Barbara, California. It is one of the 10 campuses of the University of California system. Tracing its roots back to 1891 as an independent teachers' college, UCSB joined the University of California system in 1944 and is the third-oldest general-education campus in the system.

Contents

Career

Stanton J. Peale received a Ph.D. in astronomy from Cornell University in 1965, where he worked with Thomas Gold. He was an assistant professor of astronomy at UCLA before moving to UCSB in 1968.

Cornell University private university in Ithaca (New York, US)

Cornell University is a private and statutory Ivy League research university in Ithaca, New York. Founded in 1865 by Ezra Cornell and Andrew Dickson White, the university was intended to teach and make contributions in all fields of knowledge—from the classics to the sciences, and from the theoretical to the applied. These ideals, unconventional for the time, are captured in Cornell's founding principle, a popular 1868 Ezra Cornell quotation: "I would found an institution where any person can find instruction in any study."

Thomas Gold Austrian astrophysicist

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 (London). Gold was one of three young Cambridge scientists who in 1948 proposed the now mostly abandoned 'steady state' hypothesis of the universe. Gold's work crossed academic and scientific boundaries, into biophysics, astronomy, aerospace engineering, and geophysics.

Scientific contributions

In 1969 Peale published a generalization of Cassini's laws that explain the rotation of the Moon and other bodies subject to tides. [3]

Cassini's laws provide a compact description of the motion of the Moon. They were established in 1693 by Giovanni Domenico Cassini, a prominent scientist of his time.

In 1976 Peale published an ingenious procedure to determine the size and state of the core of Mercury. [4]

Mercury (planet) Smallest and closest planet to the Sun in the Solar System

Mercury is the smallest and innermost planet in the Solar System. Its orbital period around the Sun of 87.97 days is the shortest of all the planets in the Solar System. It is named after the Roman deity Mercury, the messenger of the gods.

In 1979 Peale and collaborators predicted that Jupiter's satellite Io might show widespread volcanism as a result of the action of tides. [5] This prediction was confirmed by data from the Voyager 1 Mission which showed that Io is the most volcanically active body in the solar system.

Jupiter Fifth planet from the Sun in the Solar System

Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a giant planet with a mass one-thousandth that of the Sun, but two-and-a-half times that of all the other planets in the Solar System combined. Jupiter and Saturn are gas giants; the other two giant planets, Uranus and Neptune, are ice giants. Jupiter has been known to astronomers since antiquity. It is named after the Roman god Jupiter. When viewed from Earth, Jupiter can reach an apparent magnitude of −2.94, bright enough for its reflected light to cast shadows, and making it on average the third-brightest natural object in the night sky after the Moon and Venus.

Io (moon) Innermost of the four Galilean moons of Jupiter

Io is the innermost of the four Galilean moons of the planet Jupiter. It is the fourth-largest moon, has the highest density of all the moons, and has the least amount of water of any known astronomical object in the Solar System. It was discovered in 1610 and was named after the mythological character Io, a priestess of Hera who became one of Zeus' lovers.

Volcanism phenomena and processes associated with the action of volcanos, geysers and fumaroles

Volcanism is the phenomenon of eruption of molten rock (magma) onto the surface of the Earth or a solid-surface planet or moon, where lava, pyroclastics and volcanic gases erupt through a break in the surface called a vent. It includes all phenomena resulting from and causing magma within the crust or mantle of the body, to rise through the crust and form volcanic rocks on the surface.

He died on May 14, 2015 in Santa Barbara, California. [6]

Honors

Related Research Articles

Saturn Sixth planet from the Sun in the Solar System

Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with an average radius about nine times that of Earth. It has only one-eighth the average density of Earth, but with its larger volume Saturn is over 95 times more massive. Saturn is named after the Roman god of agriculture; its astronomical symbol (♄) represents the god's sickle.

Hyperion (moon) moon of Saturn

Hyperion, also known as Saturn VII (7), is a moon of Saturn discovered by William Cranch Bond, George Phillips Bond and William Lassell in 1848. It is distinguished by its irregular shape, its chaotic rotation, and its unexplained sponge-like appearance. It was the first non-round moon to be discovered.

The Eddington Medal is awarded by the Royal Astronomical Society for investigations of outstanding merit in theoretical astrophysics. It is named after Sir Arthur Eddington. First awarded in 1953, the frequency of the prize has varied over the years, at times being every one, two or three years. Since 2013 it has been awarded annually.

Jean-Luc Margot is a Belgian-born astronomer and a UCLA professor who specializes in planetary sciences.

Rosaly Lopes Brazilian geologist

Rosaly M. C. Lopes is a planetary geologist, volcanologist, an author of numerous scientific papers and several books, as well as a proponent of education. Her major research interests are in planetary and terrestrial surface processes with an emphasis on volcanology.

Tidal heating

Tidal heating occurs through the tidal friction processes: orbital energy is dissipated as heat in either the surface ocean or interior of a planet or satellite. When an object is in an elliptical orbit, the tidal forces acting on it are stronger near periapsis than near apoapsis. Thus the deformation of the body due to tidal forces varies over the course of its orbit, generating internal friction which heats its interior. This energy gained by the object comes from its gravitational energy, so over time in a two-body system, the initial elliptical orbit decays into a circular orbit. Sustained tidal heating occurs when the elliptical orbit is prevented from circularizing due to additional gravitational forces from other bodies that keep tugging the object back into an elliptical orbit. In this more complex system, gravitational energy still is being converted to thermal energy; however, now the orbit's semimajor axis would shrink rather than its eccentricity.

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. The prize is named for Dirk Brouwer.

Rod Davies British astronomer

Rodney Deane Davies CBE FRS was a Professor of Radio Astronomy at the University of Manchester. He was the President of the Royal Astronomical Society in 1987–1989, and the Director of Jodrell Bank Observatory in 1988–97. He is best known for his research on the Cosmic microwave background and the 21cm line.

Volcanology of Io volcanology of Io, a moon of Jupiter

The volcanology of Io, a moon of Jupiter, is the scientific study of lava flows, volcanic pits, and volcanism on the surface of Io. Its volcanic activity was discovered in 1979 by Voyager 1 imaging scientist Linda Morabito. Observations of Io by passing spacecraft and Earth-based astronomers have revealed more than 150 active volcanoes. Up to 400 such volcanoes are predicted to exist based on these observations. Io's volcanism makes the satellite one of only four known currently volcanically active worlds in the Solar System.

Andrew Prentice is an Australian mathematician. He is known for using unorthodox methods to make a range of surprisingly accurate predictions about the solar system. He also established the theory of supersonic turbulence. He is currently Emeritus Professor in the School of Mathematical Sciences at Monash University.

Theoretical planetology

Theoretical planetology, also known as theoretical planetary science is a branch of planetary sciences that developed in the 20th century.

Exploration of Io

The exploration of Io, Jupiter's third-largest moon, began with its discovery in 1610 and continues today with Earth-based observations and visits by spacecraft to the Jupiter system. Italian astronomer Galileo Galilei was the first to record an observation of Io on January 8, 1610, though Simon Marius may have also observed Io at around the same time. During the 17th century, observations of Io and the other Galilean satellites helped with the measurement of longitude by map makers and surveyors, with validation of Kepler's Third Law of planetary motion, and with measurement of the speed of light. Based on ephemerides produced by astronomer Giovanni Cassini and others, Pierre-Simon Laplace created a mathematical theory to explain the resonant orbits of three of Jupiter's moons, Io, Europa, and Ganymede. This resonance was later found to have a profound effect on the geologies of these moons. Improved telescope technology in the late 19th and 20th centuries allowed astronomers to resolve large-scale surface features on Io as well as to estimate its diameter and mass.

HR 4729 is a multiple star system located about 124 parsecs (400 ly) from the Sun in the constellation of Crux and part of the asterism known as the Southern Cross. It is a close companion of α Crucis and sometimes called α Crucis C.

Emma J. Bunce is an astrophysicist and Professor of Planetary Plasma Physics at the University of Leicester. She holds a Royal Society Wolfson Research Merit Award. She studies the magnetospheres of Saturn and Jupiter. She is principal investigator (PI) on the European Space Agency BepiColombo mission, was deputy lead on the Jupiter Icy Moons Explorer proposal, and co-investigator on the Cassini–Huygens mission.

NGC 708 galaxy

NGC 708 is an elliptical galaxy located 240 million light-years away in the constellation Andromeda and was discovered by astronomer William Herschel on September 21, 1786. It is classified as a cD galaxy and is the brightest member of Abell 262. NGC 708 is a weak FR I radio galaxy and is also classfied as a type 2 seyfert galaxy.

References

  1. 1 2 3 4 5 "Stanton J. Peale". National Academy of Sciences Member Directory. Retrieved 2014-05-18.
  2. 1 2 "DPS Prizes". American Astronomical Society.
  3. Peale, Stanton J. (1969). "Generalized Cassini's Laws". The Astronomical Journal. 74: 483. Bibcode:1969AJ.....74..483P. doi:10.1086/110825. ISSN   0004-6256.
  4. Peale, S. J. (1976). "Does Mercury have a molten core?". Nature. 262 (5571): 765–766. Bibcode:1976Natur.262..765P. doi:10.1038/262765a0. ISSN   0028-0836.
  5. Peale, S. J.; Cassen, P.; Reynolds, R. T. (1979). "Melting of Io by Tidal Dissipation". Science. 203 (4383): 892–894. Bibcode:1979Sci...203..892P. doi:10.1126/science.203.4383.892. ISSN   0036-8075. PMID   17771724.
  6. "Stanton J. Peale (1937 - 2015)". American Astronomical Society. Retrieved 2015-05-19.