Jorge Sahade Argentine astronomer. Date of Birth: 23.02.1915 Country: Argentina

1. Biography of Jorge Sahade
2. Early Career
3. International Experience
4. Later Career
5. Contributions and Achievements

Biography of Jorge Sahade

Jorge Sahade was an Argentine astronomer known for his contributions in the field of stellar physics. He was born in Alta Gracia, Cordoba province, and received his education from the National University of Cordoba and the National University of La Plata.

Early Career

From 1943 to 1946, Sahade was a fellow at the National University of La Plata, conducting research at the Yerkes Observatory and the McDonald Observatory in the United States. He then worked at the Cordoba Observatory from 1946 to 1955, where he served as the director from 1953. During this time, he also held a professorship at the National University of Cordoba from 1948 to 1955.

International Experience

In 1955, Sahade joined the University of California, Berkeley, where he worked until 1958 and again from 1960. During his time in the United States, he conducted research and taught in the field of astronomy. In 1958, he became a professor and head of the observatory department at the National University of La Plata, and in 1968, he served as the director of the observatory.

Later Career

From 1971 to 1983, Sahade worked at the Institute of Astronomy and Space Physics in Buenos Aires, where he served as the director from 1971 to 1974. He then joined the Argentine Institute of Radio Astronomy in 1983. Throughout his career, Sahade made significant contributions to the study of stellar physics, particularly in the analysis of spectra from peculiar close binary stars, including Wolf-Rayet stars and symbiotic stars.

Contributions and Achievements

Sahade was one of the first astronomers to study close binary systems in terms of their evolutionary history. He developed a classification scheme for binary stars based on their position on the Hertzsprung-Russell diagram, taking into account the evolutionary connections between their components. He also proposed an interpretation of the variable stars of the W Ursae Majoris type and explored the possible evolutionary paths of Wolf-Rayet stars.

In collaboration with F. B. Wood, Sahade authored the book "Interacting Binary Stars" in 1978. He was elected as a corresponding member of the National Academy of Sciences in Buenos Aires in 1970 and the National Academy of Sciences in Cordoba in 1972. Sahade also became a corresponding member of the Royal Academy of Exact, Physical and Natural Sciences in Madrid in 1972. He served as the vice-president of the International Astronomical Union from 1967 to 1973 and as the president from 1985 to 1988.