CECILIA PAYNE-GAPOSCHKIN: ASTRONOMER
AND ASTROPHYSICIST 1900-1980
by Heather Miller, Author and Editor
Cecilia
works at a blink microscope. Courtesy of the Harvard University
Archives.
When Cecilia Payne was five years
old, she saw a meteor and immediately decided to become an astronomer:
"I was seized with panic at the thought that everything might be
found out before I was old enough to begin," wrote Payne-Gaposhkin
at the end of her life. Payne-Gaposchkin's career reflects her early
and prodigious start; she published two major, enduring books on
astronomy before the age of 30.
Payne-Gaposchkin's enthusiasm for
science and math was not in keeping with her English upper-class
girl's education, which strongly favored literary interests. In
her autobiography The Dyer's Hand, she recalled that "When
I won a coveted prize ... I was asked what book I would choose to
receive. It was considered proper to select Milton, or Shakespeare.
. . .I said I wanted a textbook on fungi. I was deaf to all expostulation:
that was what I wanted, and in the end I got it, elegantly bound
in leather as befitted a literary giant."
Cecilia
Helena Payne, 1904. Courtesy of Katherine Haramundanis.
After attending the academically prestigious
St. Paul's Girls School in London, Payne-Gaposchkin won a scholarship
to study Natural Sciences at Newnham College, Cambridge University
in 1919. At that time in England, a woman's postgraduate career
opportunities were limited to teaching. A brilliant student more
interested in physics than natural sciences, she was advised by
a professor to pursue graduate studies at Radcliffe College in the
more liberal United States. After earning a second-class bachelor's
degree at Cambridge, she became a doctoral student at Harvard in
1924. The rich store of astronomical records at the Harvard Observatory,
and the presence of a community of astronomers, created a nirvana
for Payne-Gaposchkin from which she would never leave. In 1925,
a brisk two years after her arrival in the United States, she became
the first student, male or female, to earn a Ph.D. from the Harvard
College Observatory. Her doctoral thesis, "Stellar Atmospheres,"
articulated her surprising discovery that stars are made up primarily
of hydrogen and helium with traces of other elements. Prior to her
work in the area, it had been believed that the chemical composition
of stars was similar to that of the Earth. Seventy-five years after
her scientific discoveries were first published, they are still
valid.
While the United States was more open
to women astronomers than England, Payne-Gaposchkin was given a
marginal position at the Harvard Observatory following the extraordinary
success of her doctoral studies. An article about her in American
National Biography notes that she "informally advised students and
occasionally taught courses under the name of the observatory director,
Harlow Shapley." In 1930, she published her second book, Stars
of High Luminosity , in which she attempted to provide an ordered
account of observations of star behaviors. At one point, she considered
leaving Harvard because of her low status and meager salary. Shapley,
however, made efforts to improve her position, but it would not
be until 1938 that she was made an official faculty member of Harvard
University. Out of gratitude for the opportunities the United States
had given her and out of the belief that a responsible adult in
a community must be a voter, she became an American citizen in 1931.
Katherine,
Edward, Sergei Gaposchkin, and Cecilia Payne-Gaposchkin in her
office in 1946. Courtesy of Katherine Haramundanis.
In 1933 on a trip to Germany, she
met the Russian astronomer Sergei Gaposchkin, whose political beliefs
made him an exile of his native land and whose Russian nationality
made him unwelcome in Hitler's Germany. Payne-Gaposchkin convinced
Shapley to give the Russian astronomer a position at Harvard, thereby
securing his physical safety as well as his career. Two years later,
they were married. The Gaposchkins had three children, all of whom
worked as astronomers for a period of time.
Payne-Gapochkin was a
many-sided personality known for her wit,her literary knowledge,
and for her personal friendships with individual stars. She became
the first woman in the history of Harvard University to be promoted
to full professor and the first woman department chair in 1956.
A
September 1956 article in The Christian Register published
by the American Unitarian Association, announced her appointment
and described her as a member of the denomination's First Parish
and Church in Lexington, Massachusetts. The article also gave an
account of her close collaboration with her husband and their respective
interests, hers in variable stars and his in eclipsing stars:"When
we come to an eclipsing star, I would say to my husband, 'That is
yours.' And when we would come to a pulsating star, I would say,
'That is mine.'"
Payne,
standing behind Everett House. Courtesy of Katherine Haramundanis.
Payne-Gapochkin
remained Chair of the Astronomy department and a full professor
at Harvard for ten years. During that time, she published The
Galactic Novae (1957) in which she noted patterns in observations
of stars that had been made over a period of twenty-five years and
pointed out areas worthy of further attention. Her book, An Introduction
to Astronomy (1954) was based on the undergraduate astronomy
course she taught at Radcliffe College. She also delivered a memorable
series of lectures to non-astronomers entitled" Stars
in the Making" (1953). Of her contributions to astronomy, her
former student and fellow astronomer Jesse Greenstein wrote, "It
led forward to important problems in the study of nuclear astrophysics,
as well as in the use of variable stars of high luminosity, probing
the structure and rotation of our Milky Way and the distances to
other galaxies. Most important, it showed the bravery and adventure
of a mind exploring the unknown with the available scientific apparatus
and a complete belief in the power of human reason and logic."
After 1967, she was named Professor
Emeritus of Harvard University. Her early education in Classical
and English literature, greatly enriched her lifelong sense of inquiry
and adventure.
Although she broke down formidable
boundaries for women in her field, her autobiography, The Dyer's
Hand, describes a career marked with slow promotions and low
salaries.
What sustained her were her intellectual interests and the rewards
of her work. She wrote, "I simply went on plodding, rewarded by
the beauty of the scenery towards an unexpected goal". To fellow
scientists, she encouraged the same single-minded sense of purpose,
noting that "Your reward will be the widening of the horizon as
you climb. And if you achieve that reward you will ask no other."
Cecilia
Payne-Gaposchkin: An Autobiography. Edited by Katherine Haramundanis
(New York: Cambridge University Press, 1984).
A.
G. Davis, Philip & Rebecca A. Koopmann, editors, The Starry
Universe: The Cecilia Payne-Gaposchkin Centenary (Schenectady,
NY: L. Davis Press, 2001). Note the chapter by Owen Gingerich, "The
Most Brilliant Ph. D. Thesis Ever Written in Astronomy."