Cayrel Roger Horoscope

C R

Cayrel Roger

Dec 4, 1925

Rating : AA (Data from a birth certificate)

Cancer
Moon Sign

Scorpio
Sun Sign

Aries
Lagan

Events

Relationship : Marriage 1954 (Giusa de Strobel)

Death:Death, Cause unspecified 11 January 2021 (Age 95) chart Placidus Equal_H.

Biography

French astronomer whose main interests were stellar atmospheres, galactic chemical evolution and metal-poor stars. Cayrel and his colleagues discovered thorium and uranium in the ultra-metal-poor halo star BPS CS31082-0001, which was named Cayrels Star to honour him. From the thorium and uranium content, an age of 12.5 Billion years could be calculated. Beside his scientific work, he had a number of high-ranking posts in the management of science: director of the Canada-France-Hawaii Telescope (CFHT, 1974–1980), president of the IAU commission on stellar atmospheres (1973–1976) and head of the Bureau des Longitudes (1995–1996). Cayrel had been a corresponding member of the Académie des Sciences since 1988. He was awarded the Prix Jules Janssen of the Société astronomique de France (Astronomical Society of France), in 2001. Since 1954, he had been married to the Italian astronomer Giusa de Strobel. Roger Cayrel died on 11 January 2021 at age 95 in Paris. Link to Wikipedia biography Read less

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Update at: Jul 5, 2025

`` Cayrel Roger - Information

Cayrel Roger (1925-2021)

Cayrel Roger, born on December 4, 1925, in Talence, France, was a prominent astronomer known for his contributions to stellar spectroscopy and the study of the chemical evolution of stars and galaxies. He passed away in 2021.

Career and Research

Cayrel dedicated his career to understanding the composition of stars and the processes that shape their chemical makeup over time. His work involved analyzing the light from stars to determine the abundance of different elements, providing insights into the history of star formation and the evolution of galaxies.

He held significant positions at the Paris Observatory and the Institut d'Astrophysique de Paris, where he conducted extensive research and mentored numerous astronomers. His studies of old stars in the halo of our galaxy were particularly important, as they offer clues to the early stages of galactic formation. Cayrel was a pioneer in applying high-resolution spectroscopy to stellar studies, allowing for detailed analysis of the chemical fingerprints of stars.

His research focused on determining the abundance of light elements like lithium, beryllium, and boron in stars, shedding light on their formation and the processes occurring in stellar interiors. He was also interested in understanding the variations in chemical abundances observed in different populations of stars.

Legacy

Cayrel Roger's work has significantly impacted our understanding of stellar and galactic evolution. His contributions to high-resolution spectroscopy and the study of stellar chemical abundances have paved the way for future research in the field.

Information Availability

Unfortunately, specific details regarding news, social media presence, and recent projects directly attributed to Cayrel Roger are limited in publicly accessible online resources. Due to the sensitive nature of personal information and the passage of time, detailed accounts may not be readily available or easily verifiable. It is likely that further information may be held within academic archives or specialized astronomical databases. Contacting the Paris Observatory or Institut d'Astrophysique de Paris could potentially yield more specific information for research purposes.

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