Edwin Frost

Edwin Frost was an eminent American astronomer who served as the second director of the Yerkes Observatory and made significant contributions to stellar spectroscopy. His career was dedicated to advancing the understanding of spectroscopic binary stars and promoting astrophysical research, despite a personal tragedy that left him nearly blind. A respected leader, he guided the observatory through a pivotal era and mentored a generation of astronomers.

Early life and education

Born in Brattleboro, Vermont, he was the son of Carlos Frost, a professor at Dartmouth College. He developed an early interest in science, which was nurtured during his undergraduate studies at Dartmouth College, where he earned his bachelor's degree in 1886. Under the mentorship of renowned astronomer Charles Augustus Young, he pursued graduate work, focusing on the emerging field of astrophysics and the use of the spectroscope. He continued his studies in Europe, attending lectures at the University of Strasbourg and working briefly at the Potsdam Astrophysical Observatory, which solidified his expertise in spectroscopic methods.

Career at Yerkes Observatory

In 1898, he joined the staff of the newly founded Yerkes Observatory in Williams Bay, Wisconsin, which was operated by the University of Chicago. He initially worked under the observatory's first director, the celebrated astronomer George Ellery Hale. His administrative and scientific skills were quickly recognized, and following Hale's departure to establish the Mount Wilson Observatory, he was appointed director in 1905. As director, he oversaw the daily operations of the observatory, secured crucial funding from patrons like Charles Tyson Yerkes, and maintained its reputation as a premier center for astronomical research, fostering collaborations with institutions like the American Astronomical Society.

Research and discoveries

His primary research focus was the application of spectroscopy to the study of stars. He became a leading authority on spectroscopic binary stars, systems where the orbital motion of stars is detected through Doppler shifts in their spectral lines. Using the powerful Great Refractor and other instruments at Yerkes Observatory, he and his colleagues, including Walter Sydney Adams and Philip Fox, meticulously measured the radial velocities of stars. He also conducted important studies on the spectrum of nova stars and the rotation of the Sun, contributing valuable data to the fields of stellar evolution and solar physics.

Later life and legacy

A personal and professional challenge arose in 1915 when he developed a detached retina, an injury that eventually left him almost completely blind. Remarkably, he continued to serve as director of Yerkes Observatory until his retirement in 1932, relying on assistants like F. J. M. Stratton and his own formidable memory to conduct his work. His perseverance became an inspiration within the scientific community. His legacy includes the training of numerous astronomers, the expansion of the observatory's research programs, and his steadfast leadership which ensured the continuity of astrophysical work during the observatory's formative decades.

Honors and awards

In recognition of his contributions to astronomy, he received several prestigious honors. He was awarded the Henry Draper Medal from the National Academy of Sciences in 1918 for his investigations of spectroscopic binaries. He served as president of the American Astronomical Society from 1918 to 1919 and was also elected a fellow of the American Academy of Arts and Sciences. The American Philosophical Society honored him with membership, and a crater on the Moon was named Frost in his memory.

Category:American astronomers Category:Yerkes Observatory Category:1866 births Category:1935 deaths