Jeffrey Richard Kuhn, also known as Jeff Kuhn, is an American

physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate caus ...

and

astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, natural satellite, moons, comets and galaxy, g ...

who is a professor of

astronomy Astronomy () is a natural science that studies astronomical object, celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and chronology of the Universe, evolution. Objects of interest ...

at the

University of Hawaiʻi The University of Hawaiʻi System, formally the University of Hawaiʻi and popularly known as UH, is a public college and university system that confers associate, bachelor's, master's, and doctoral degrees through three universities, seven com ...

. He is known for his contributions to

astrophysics Astrophysics is a science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena. As one of the founders of the discipline said, Astrophysics "seeks to ascertain the nature of the h ...

and the search for

extraterrestrial life Extraterrestrial life, colloquially referred to as alien life, is life that may occur outside Earth and which did not originate on Earth. No extraterrestrial life has yet been conclusively detected, although efforts are underway. Such life might ...

, particularly in the areas of

telescope A telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. Originally meaning only an optical instrument using lenses, curved mirrors, or a combination of both to observe ...

and detection system development, the study of the Sun and its

corona Corona (from the Latin for 'crown') most commonly refers to: * Stellar corona, the outer atmosphere of the Sun or another star * Corona (beer), a Mexican beer * Corona, informal term for the coronavirus SARS-CoV-2, which causes the COVID-19 di ...

, and the search for planets around other stars.

Education

Kuhn received his bachelor's degree in physics and mathematics from

Kalamazoo College Kalamazoo College, also known as Kalamazoo, K College, KC or simply K, is a private liberal arts college in Kalamazoo, Michigan. Founded in 1833 by Baptist ministers as the Michigan and Huron Institute, Kalamazoo is the oldest private college in ...

in 1977, and then earned his master's and doctoral degrees in physics from

Princeton University Princeton University is a private university, private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth, New Jersey, Elizabeth as the College of New Jersey, Princeton is the List of Colonial Colleges, fourth-oldest ins ...

in 1979 and 1981, respectively, under the supervision of

Robert Dicke Robert Henry Dicke (; May 6, 1916 – March 4, 1997) was an American astronomer and physicist who made important contributions to the fields of astrophysics, atomic physics, cosmology and gravity. He was the Albert Einstein Professor in Scienc ...

Career and research

Kuhn has held positions at various universities, including Princeton and

Michigan State University Michigan State University (Michigan State, MSU) is a public university, public Land-grant university, land-grant research university in East Lansing, Michigan. It was founded in 1855 as the Agricultural College of the State of Michigan, the fi ...

, and has served as a visiting professor at several institutions around the world. He joined the Institute for Astronomy in

Honolulu Honolulu (; ) is the capital and largest city of the U.S. state of Hawaii, which is in the Pacific Ocean. It is an unincorporated county seat of the consolidated City and County of Honolulu, situated along the southeast coast of the island ...

in 1997 and served as its associate director and director of the IfA/Maui division until 2015. He has made contributions to the fields of astrophysics and the search for extraterrestrial life. He is known for his work on the development of telescopes and detection systems, including the Princeton Solar Distortion Telescope (PSDT), the

National Solar Observatory The National Solar Observatory (NSO) is a United States public research institute to advance the knowledge of the physics of the Sun. NSO studies the Sun both as an astronomical object and as the dominant external influence on Earth. NSO is headq ...

Precision Solar Photometric Telescope (PSPT), and the University of Hawaiʻi Solar Observatory for Limb Active Regions and Coronae (Solar-C). He has also contributed to the design of the

Daniel K. Inouye Solar Telescope The Daniel K. Inouye Solar Telescope (DKIST) is a scientific facility for studies of the sun at Haleakala Observatory on the Hawaiian island of Maui. Known as the Advanced Technology Solar Telescope (ATST) until 2013, it was named after Daniel K. ...

(DKIST) and the

Giant Magellan Telescope The Giant Magellan Telescope (GMT) is a ground-based extremely large telescope under construction, as part of the US Extremely Large Telescope Program (US-ELTP), . It will consist of seven 8.4 m (27.6 ft) diameter primary segments, that ...

, and has conceived of other telescopes that are in the planning or construction phases, including the Polarized Light from Atmospheres of Nearby Extra-Terrestrial Systems (PLANETS) telescope and the Exo-Life Finder telescopes (ELF and MiniELF). In addition to his work on telescopes, Kuhn has also made contributions to the study of the Sun and its corona. He has developed various

infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around ...

instruments for solar and solar coronal

spectroscopy Spectroscopy is the field of study that measures and interprets the electromagnetic spectra that result from the interaction between electromagnetic radiation and matter as a function of the wavelength or frequency of the radiation. Matter wa ...

and

spectropolarimetry Polarimetry is the measurement and interpretation of the polarization of transverse waves, most notably electromagnetic waves, such as radio or light waves. Typically polarimetry is done on electromagnetic waves that have traveled through or ha ...

, and has used satellite experiments to study small changes in the Sun's shape and brightness. His work has led to a better understanding of the Sun's magnetic field and its role in solar activity, such as

solar flare A solar flare is an intense localized eruption of electromagnetic radiation in the Sun's atmosphere. Flares occur in active regions and are often, but not always, accompanied by coronal mass ejections, solar particle events, and other solar phe ...

s and

coronal mass ejection A coronal mass ejection (CME) is a significant release of plasma and accompanying magnetic field from the Sun's corona into the heliosphere. CMEs are often associated with solar flares and other forms of solar activity, but a broadly accepted ...

s. Kuhn is also involved in the search for planets around other stars. He co-founded the PLANETS Foundation, which aims to find and study planets around other stars, and has developed various instruments and algorithms for detecting and characterizing these planets. He has also co-founded the Colossus Project, which is a program to build a large telescope for searching for and studying

exoplanet An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, init ...

s, and MorphOptics, Inc., which is a company that develops advanced optics and imaging systems for a variety of applications.

Awards and recognition

Throughout his career, Kuhn has received numerous awards and honors for his scientific contributions, including the University of Hawaiʻi Regents' Medal for Excellence in Research, and the 2010

Humboldt Prize The Humboldt Prize, the Humboldt-Forschungspreis in German, also known as the Humboldt Research Award, is an award given by the Alexander von Humboldt Foundation of Germany to internationally renowned scientists and scholars who work outside of G ...

Selected publications

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References

{{DEFAULTSORT:Kuhn, Jeff Year of birth missing (living people) Living people Astrophysicists Princeton University alumni Michigan State University alumni American scientists Humboldt Research Award recipients Kalamazoo College alumni Institute for Astronomy (Hawaii) people