Kyongae Chang
Encyclopedia
Kyongae Chang is a South Korea
n astrophysicist. She is best known for her work on gravitational lensing, including the Chang-Refsdal lens
.
Chang was born in Seoul
. She worked as a research associate on astrometric
binaries
with Professors van de Kamp
and Heintz
at Sproul Observatory
from 1969 till 1971 before obtaining a Dr. rer. nat. from Hamburg University with her work on the Chang-Refsdal lens in 1979.
She returned to Korea in 1985 and became a professor at Cheongju University
.
South Korea
The Republic of Korea , , is a sovereign state in East Asia, located on the southern portion of the Korean Peninsula. It is neighbored by the People's Republic of China to the west, Japan to the east, North Korea to the north, and the East China Sea and Republic of China to the south...
n astrophysicist. She is best known for her work on gravitational lensing, including the Chang-Refsdal lens
Chang-Refsdal lens
A Chang-Refsdal lens is a point-mass gravitational lens perturbed by constant external shear.The name derives from Kyongae Chang and Sjur Refsdal who in 1979 published a paper in NATURE 282, 561. "Flux Variations of QSO Q0957+561 A,B and image splitting by stars Near the Light Path."The paper...
.
Chang was born in Seoul
Seoul
Seoul , officially the Seoul Special City, is the capital and largest metropolis of South Korea. A megacity with a population of over 10 million, it is the largest city proper in the OECD developed world...
. She worked as a research associate on astrometric
Astrometry
Astrometry is the branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies. The information obtained by astrometric measurements provides information on the kinematics and physical origin of our Solar System and our Galaxy, the Milky...
binaries
Binary star
A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is called the primary and the other is its companion star, comes, or secondary...
with Professors van de Kamp
Peter van de Kamp
Piet van de Kamp , known as Peter van de Kamp in the United States, was a Dutch astronomer who lived most of his life in the United States. He was professor of astronomy at Swarthmore College and director of the college's Sproul Observatory from 1937 until 1972...
and Heintz
Wulff Dieter Heintz
Wulff-Dieter Heintz was a German astronomer who worked the latter part of his career in the United States. He was Professor Emeritus of Astronomy at Swarthmore College and former director of the Sproul Observatory...
at Sproul Observatory
Sproul Observatory
Sproul Observatory is an astronomical observatory owned and operated by Swarthmore College. It is located in Swarthmore, Pennsylvania, United States, and is named after William Cameron Sproul, the 27th Governor of Pennsylvania, who graduated from Swarthmore in 1891.-Tours:An open house is offered...
from 1969 till 1971 before obtaining a Dr. rer. nat. from Hamburg University with her work on the Chang-Refsdal lens in 1979.
She returned to Korea in 1985 and became a professor at Cheongju University
Cheongju University
Cheongju University is a private university located in Cheongju City, the capital of North Chungcheong province, South Korea. The current president is Kim Yoon Bae.-Academics:...
.
External links
- Partial list of publications at ScientificCommonsScientificCommonsScientificCommons is a project of the University of St. Gallen Institute for Media and Communications Management. The major aim of the project is to develop the world’s largest archive of scientific knowledge with fulltexts freely accessible to the public....
- Kyongae Chang at the IAUInternational Astronomical UnionThe International Astronomical Union IAU is a collection of professional astronomers, at the Ph.D. level and beyond, active in professional research and education in astronomy...