American solar physicist (1927–2022)
Eugene Newman Parker (June 10, 1927 – March 15, 2022) was an American
solar and
plasma physicist . In the 1950s he proposed the existence of the
solar wind and that the magnetic field in the
outer Solar System would be in the shape of a
Parker spiral , predictions that were later confirmed by spacecraft measurements. In 1987, Parker proposed the existence of
nanoflares , a leading candidate to explain the
coronal heating problem .
Parker obtained his PhD from
Caltech and spent four years as a
postdoctoral researcher at the
University of Utah . He joined
University of Chicago in 1955 and spent the rest of his career there, holding positions in the physics department, the
astronomy and
astrophysics department, and the
Enrico Fermi Institute . Parker was elected to the
National Academy of Sciences in 1967. In 2017,
NASA named its
Parker Solar Probe in his honor, the first NASA spacecraft named after a living person.
[1]
Biography
Parker was born in
Houghton, Michigan to Glenn and Helen (MacNair) Parker on June 10, 1927.
[2] He received his
Bachelor of Science degree in
physics from
Michigan State University in 1948 and a
Doctor of Philosophy from Caltech in 1951.
[3] Parker spent four years at the
University of Utah before joining the University of Chicago in 1955, where he spent the rest of his career.
[3] He held positions in Chicago's physics department,
astronomy and
astrophysics department, and the
Enrico Fermi Institute .
[4] Parker was elected to the
National Academy of Sciences in 1967.
[4]
Theoretical research
In the mid-1950s, Parker developed the theory of supersonic
solar wind and predicted the
Parker spiral shape of the solar magnetic field in the
outer Solar System . His theoretical modeling was not immediately accepted by the astronomical community: when he submitted the results to
The Astrophysical Journal , two reviewers recommended its rejection. The editor of the journal,
Subrahmanyan Chandrasekhar , overruled the reviewers and published the paper anyway.
[5]
[6] Parker's theoretical predictions were confirmed by satellite observations a few years later, especially the 1962
Mariner 2 mission.
[7]
Parker's work increased understanding of the
solar corona , the
solar wind , the
magnetic fields of both the Earth and the Sun, and their complex electromagnetic interactions. In 1972, he formulated what became known as the
Parker theorem , which showed how the
topology of
magnetic field lines in the
solar corona of the Sun (and similar stars) can produce
flares at
X-ray energies.
[8]
[9]
He published several
textbooks , including Cosmical Magnetic Fields in 1979, and one on magnetic fields in
X-ray astronomy in 1994.
[10] Seeking to address the
coronal heating problem , in 1987 Parker proposed that the solar corona might be heated by myriad tiny "
nanoflares ", miniature brightenings resembling
solar flares that would occur all over the surface of the Sun. Parker's theory became a leading candidate to explain the problem.
[4]
[10]
Personal life
Parker was married for 67 years to his wife, Niesje, with whom he had two children. He died in Chicago on March 15, 2022, at the age of 94.
[2]
[3]
Honors and awards
1969:
Arctowski Medal of the
National Academy of Sciences
[11]
1969:
Henry Norris Russell Lectureship of the
American Astronomical Society
[12]
1978:
George Ellery Hale Prize , Solar Physics Division of the American Astronomical Society, first time this prize was awarded
[13]
1979:
Chapman Medal , Royal Astronomical Society
[14]
1989:
National Medal of Science
[15]
1990:
William Bowie Medal
[4]
1992:
Gold Medal of the Royal Astronomical Society
[16]
1997:
Bruce Medal
[10]
2003:
Kyoto Prize
[17]
[18]
2003:
James Clerk Maxwell Prize of the
American Physical Society . Citation: "For seminal contributions in
plasma astrophysics , including predicting the
solar wind , explaining the
solar dynamo , formulating the theory of
magnetic reconnection , and the
instability which predicts the escape of the
magnetic fields from the galaxy."
[19]
2010: Member of the
Norwegian Academy of Science and Letters .
[20]
2017:
NASA renamed its Solar Probe Plus to
Parker Solar Probe after Parker,
[21] the first time that a space vessel was named after a living person.
[22]
[2] Parker was present at its August 12, 2018, launch.
2018: Medal for Exceptional Achievement in Research of the
American Physical Society . Citation: "For fundamental contributions to space physics, plasma physics, solar physics and astrophysics for over 60 years."
[23]
2020:
Crafoord Prize in Astronomy
[24]
Books
Cosmical Magnetic Fields: Their Origin and their Activity , 1979, Oxford University Press.
ISBN
978-0-19-851290-5 .
Spontaneous Current Sheets in Magnetic Fields: With Applications to Stellar X-rays , 1994, Oxford University Press.
ISBN
978-0-19-507371-3 .
Conversations on Electric and Magnetic Fields in the Cosmos , 2007, Princeton University Press.
ISBN
978-0-691-12841-2 .
References
^
"Eugene Parker, 'legendary figure' in solar science and namesake of Parker Solar Probe, 1927-2022 | University of Chicago News" . news.uchicago.edu . March 16, 2022. Retrieved January 7, 2024 .
^
a
b
c Chang, Kenneth (March 17, 2022).
"Eugene N. Parker, 94, Dies; Predicted the Existence of Solar Wind" . The New York Times . Retrieved March 17, 2022 .
^
a
b
c Lerner, Louise (March 16, 2022).
"Eugene Parker, 'legendary figure' in solar science and namesake of Parker Solar Probe, 1927–2022" . University of Chicago. Retrieved March 16, 2022 .
^
a
b
c
d Tatarewicz, Joseph N.
"Eugene N. Parker (1912– )" . Honors program .
American Geophysical Union . Archived from
the original on December 12, 2013. Retrieved December 7, 2013 .
^ Parker, E. N. (1997), "The martial art of scientific publication",
EOS Transactions , 78 (37): 391,
Bibcode :
1997EOSTr..78..391P ,
doi :
10.1029/97EO00251
^ Roach, John.
"Astrophysicist Recognized for Discovery of Solar Wind" . National Geographic News . National Geographic. Archived from
the original on August 30, 2003. Retrieved June 2, 2017 .
^ Chang, Kenneth (August 10, 2018).
"NASA's Parker Solar Probe Is Named for Him. 60 Years Ago, No One Believed His Ideas About the Sun" . The New York Times . After Mariner 2, 'everyone agreed the solar wind existed,' Dr. Parker said.
^ Parker, E. N. (1990),
"Formal mathematical solutions of the force-free equations, spontaneous discontinuities, and dissipation in large-scale magnetic fields" , Physics of Magnetic Flux Ropes , Washington, D. C.: American Geophysical Union, pp. 195–202, retrieved January 7, 2024
^ Chhabra, Sherry (April 30, 2022).
"Obituary: Eugene N. Parker (1927 - 2022)" . SolarNews . Retrieved January 7, 2024 .
^
a
b
c Tenn, Joseph S.
"Eugene Newman Parker: 1997 Bruce Medalist" . Sonoma State University. Retrieved December 7, 2013 .
^
"Arctowski Medal" .
National Academy of Sciences . Archived from
the original on December 29, 2010. Retrieved February 13, 2011 .
^
"Henry Norris Russell Lectureship" . aas.org .
American Astronomical Society . Retrieved March 16, 2022 .
^
"George Ellery Hale Prize – Previous Winners" . spd.aas.org . AAS Solar Physics Division. Retrieved March 16, 2022 .
^
"Chapman Medal winners" (PDF) . Awards, medals and prizes . Royal Astronomical Society. Retrieved October 9, 2019 .
^
"Eugene N. Parker" . The President's National Medal of Science: Recipient Details .
National Science Foundation . Retrieved December 7, 2013 .
^
"The Gold Medal" (PDF) . Royal Astronomical Society. 2021. Retrieved December 20, 2021 .
^
"Citation: Eugene Newman Parker" . Kyoto Prize . Inamori Foundation. Archived from
the original on December 11, 2013. Retrieved December 7, 2013 .
^ Roach, John (August 27, 2003).
"Astrophysicist Recognized for Discovery of Solar Wind" . National Geographic News . Archived from
the original on August 30, 2003. Retrieved December 7, 2013 .
^
"2003 James Clerk Maxwell Prize for Plasma Physics Recipient" . Prizes, Awards and Fellowships .
American Physical Society . Retrieved December 7, 2013 .
^
"Gruppe 2: Fysikkfag (herunder astronomi, fysikk og geofysikk)" (in Norwegian).
Norwegian Academy of Science and Letters . Archived from
the original on September 27, 2011. Retrieved October 7, 2010 .
^ N. Davis (May 31, 2017).
"Nasa's hotly anticipated solar mission renamed to honour astrophysicist Eugene Parker" .
The Guardian . Retrieved May 31, 2017 .
^
"NASA Renames Solar Probe Mission to Honor Pioneering Physicist Eugene Parker" .
NASA . May 31, 2017. Retrieved May 31, 2017 .
^
"Award honors Prof. Eugene Parker's lifetime of physics research" . UChicago News . January 31, 2018. Retrieved February 1, 2018 .
^
"The Crafoord Prizes in Mathematics and Astronomy 2020" . January 30, 2020. Retrieved March 17, 2022 .
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