Jorge Sahade

Last updated
Jorge Sahade
Jorge Sahade 2005 primer plano.jpg
Jorge Sahade in 2005
Born(1915-02-17)February 17, 1915
DiedDecember 18, 2012(2012-12-18) (aged 97)
NationalityArgentine
Alma mater National University of La Plata
Known forHis publications in astronomy, being the founder of the IAFE
SpousesMyriam Elkin Font
Dra. Adela Ringuelet
ChildrenPatricia Sahade, Carlos Sahade

Jorge Sahade (born February 17, 1915, in Cordoba, Argentina, died December 18, 2012) [1] was an Argentine astronomer [2] [3] with more than 200 publications in journals and conferences. He was the first Latin American to achieve the presidency of the International Astronomical Union (IAU) between 1985 and 1988, and was also the first director of the Comisión Nacional de Actividades Espaciales. He held this position between 1991 and 1994. [1]

Contents

Career

Jorge Sahade and Carlos Cesco in 1943 aboard the Rio Atuel boat Jorge Sahade y Carlos Cesco en 1943 a bordo del barco Rio Atuel.jpg
Jorge Sahade and Carlos Cesco in 1943 aboard the Rio Atuel boat

He was born in Cordoba into a family of Syrian origin. In Cordoba, Sahade wished to study mathematics, but at that time, there were only university degrees in engineering and surveying. [2] Sahade chose to study the latter at the National University of Córdoba, where he received his degree in 1937. While working at the Military Geographic Institute in La Plata, he found out about astronomy, [2] [3] and chose to study this at the National University of La Plata, where in 1941, he became an Astronomical Assistant at his observatory and became Doctor of Astronomical and Related Sciences in 1943. [4] After finishing his degree, he and Carlos Ulrrico Cesco (the first astronomy graduate in the country) obtained scholarships to go to the United States to learn astrophysics. [2] While in the United States, Sahade decided to study binary stars. [3]

Jorge Sahade in 1944 working at the Yerkes Observatory Jorge Sahade en 1944 trabajando en el Observatorio Yerkes.jpg
Jorge Sahade in 1944 working at the Yerkes Observatory

He promoted the purchase of a 215 cm diameter telescope, [4] [2] which is today located in the Leoncito Astronomical Complex. [5] The construction of this telescope was in the United States. The telescope was modeled after the one at Kitt Peak National Observatory. The telescope's blueprints were a gift from Kitt Peak's director Nicholas Mayall. [2] Between 1953 and 1955, Sahade served as Director of the Astronomical Observatory of Cordoba, [6] and between March 1968 and July 1969 he served as director of the Observatory of La Plata. In 1969 he became the first dean of the Faculty of Exact Sciences of the National University of La Plata.

He founded the Institute of Astronomy and Physics of Space (IAFE) in the first Pavilion of the University of Buenos Aires, [2] where he was director and Alma Mater between 1971 and 1974. [2] [5] [4] After leaving the CONICET and the direction of the IAFE, he continued as an IAFE researcher independently as well as working at the Argentinean Institute of Radio Astronomy (IAEA). [3]

He was the first Latin American to achieve the presidency of the International Astronomical Union (IAU) between 1985 and 1988, [4] [2] [7] and was also the first director of the Comisión Nacional de Actividades Espaciales. He held this position between 1991 and 1994. [3]

One of his publications was on the study of the binary star system Beta Lyrae, which was published in the American Philosophical Society. The publication provided solutions to old problems about the systems of closed binary stars. [3] Later astronomer Helmut Abt in the United States would confirm that the work was correct. [3]

Awards and Acknowledgments

Selected publications

Related Research Articles

<span class="mw-page-title-main">Otto Struve</span> Russian astronomer (1897–1963)

Otto Lyudvigovich Struve was a Russian-American astronomer of Baltic German origin. Otto was the descendant of famous astronomers of the Struve family; he was the son of Ludwig Struve, grandson of Otto Wilhelm von Struve and great-grandson of Friedrich Georg Wilhelm von Struve. He was also the nephew of Karl Hermann Struve.

<span class="mw-page-title-main">Charles Dillon Perrine</span> American astronomer (1867–1951)

Charles Dillon Perrine was an American astronomer at the Lick Observatory in California (1893-1909) who moved to Cordoba, Argentina to accept the position of Director of the Argentine National Observatory (1909-1936). The Cordoba Observatory under Perrine's direction made the first attempts to prove Einstein's theory of relativity by astronomical observation of the deflection of starlight near the Sun during the solar eclipse of October 10, 1912 in Cristina (Brazil), and the solar eclipse of August 21, 1914 at Feodosia, Crimea, Russian Empire. Rain in 1912 and clouds in 1914 prevented results.

<span class="mw-page-title-main">William Hussey (astronomer)</span> American astronomer (1862–1926)

William Joseph Hussey was an American astronomer.

<span class="mw-page-title-main">La Plata Astronomical Observatory</span> Observatory

The La Plata Astronomical Observatory is an observatory located in the city of La Plata, capital of the province of Buenos Aires, Argentina. Its IAU code is 839.

Struve is a surname. Notable people with the surname include:

<span class="mw-page-title-main">Leoncito Astronomical Complex</span> Observatory

The El Leoncito Astronomical Complex is an astronomical observatory in the San Juan Province of Argentina. CASLEO is one of two observatories located within El Leoncito National Park, which is in a part of the country which rarely sees cloud cover. The other facility in the park is the Carlos U. Cesco Astronomical Station of the Félix Aguilar Observatory. CASLEO was established in 1983 by an agreement between National Scientific and Technical Research Council (CONICET) of Argentina, the Ministry of Science, Technology and Innovation (MINCYT) of Argentina, the National University of San Juan (UNSJ), the National University of La Plata (UNLP), and the National University of Córdoba (UNC). The facility was dedicated in 1986 and regular observations began in 1987.

<span class="mw-page-title-main">Virpi Niemelä</span> Finnish-Argentine astronomer (1936–2006)

Virpi Sinikka Niemelä was a leading Finnish Argentine astronomer. She was the second Argentine to be elected for Associate of the Royal Astronomical Society.

1608 Muñoz, provisional designation 1951 RZ, is a Flora asteroid from the inner regions of the asteroid belt, approximately 6.5 kilometers in diameter. It was discovered on 1 September 1951, by Argentine astronomer Miguel Itzigsohn at the La Plata Astronomical Observatory, in La Plata, Argentina. The S-type asteroid has a rotation period of 5.3 hours. It was named after F. A. Muñoz, one of the assistant astronomers at the discovering observatory.

<span class="mw-page-title-main">Argentine National Observatory</span> Observatory

The Argentine National Observatory, today the Astronomical Observatory of Córdoba, was founded on 24 October 1871, by Argentine president Domingo F. Sarmiento and the North American astronomer Benjamin Apthorp Gould.

The Struve–Sahade effect occurs in a double-lined spectroscopic binary star system when the strength of the spectral lines of the components varies during the orbital motion.

The Instituto de Astronomía Teórica y Experimental (IATE) is a scientific institute funded by the Consejo Nacional de Investigaciones en Científicas y Técnicas (CONICET) and the Universidad Nacional de Córdoba (UNC), located in the city of Córdoba, Argentina, and dedicated to the study of different topics in astronomy. The headquarters of the institute are located at the Observatorio Astronómico de Córdoba.

<span class="mw-page-title-main">Argentine Institute of Radio Astronomy</span> Observatory

The Argentine Institute of Radio Astronomy (IAR) was created in 1962 through an agreement between the scientific agencies CONICET and CIC, and the universities of La Plata and Buenos Aires. Its functions are to promote and coordinate the research and technical development of radio astronomy in Argentina and to collaborate in the teaching and dissemination of astrophysics and related disciplines. The Institute continues its activities in the dependency of the National Council of Scientific and Technical Research (CONICET), the Commission of Scientific Research of the Province of Buenos Aires (CICPBA) and the National University of La Plata (UNLP). Its current director is Dr. Gustavo E. Romero and its deputy director, Dr. Jorge A. Combi.

<span class="mw-page-title-main">TU Muscae</span> Star in the constellation Musca

TU Muscae, also known as HD100213, is an eclipsing binary star in the constellation Musca. Its apparent magnitude ranges from 8.17 to 8.75 over around 1.4 days.

<span class="mw-page-title-main">Asociación Argentina Amigos de la Astronomía</span> Observatory

Asociación Argentina Amigos de la Astronomía is an amateur astronomy civil association based on Buenos Aires, Argentina, with the aim of spreading astronomy. It was founded on January 4, 1929 and its field courses are held on related subjects, research in collaboration with professional bodies and printed publications or multimedia, and recreational activities for the general public. The main-belt asteroid 4756 Asaramas was named in honor of the observatory.

<span class="mw-page-title-main">Delta Lyrae cluster</span> Sparse open cluster in the constellation of Lyra

Delta Lyrae cluster or Stephenson 1 is a sparse open cluster of stars located about 1,220 light years away in the northern constellation of Lyra. Centered on the bright star Delta2 Lyrae for which it is named but not a member like Delta1 Lyrae is with 70% certainty.

<span class="mw-page-title-main">Adela Ringuelet</span> Argentine astrophysicist (1930–2023)

Adela Emilia Ringuelet was an Argentine astrophysicist and astronomer at the Félix Aguilar Observatory in Argentina.

<span class="mw-page-title-main">Gloria Dubner</span> Argentina astrophysicist

Gloria Dubner is an Argentinian astrophysicist and Director of the Instituto de Astronomía y Física del Espacio in Buenos Aires and a Senior Researcher at the National Scientific and Technical Research Council. She is known for her research on supernovas.

<span class="mw-page-title-main">Nidia Morrell</span> Argentine astronomer

Nidia Irene Morrell is an Argentine astronomer who is a permanent staff member at the Las Campanas Observatory in La Serena, Chile. She was a member of the Massive Stars research group led by Virpi Niemelä and the Hubble Heritage Project. Professionally, she is known for her numerous contributions related to the astrophysics of massive stars. She participates in the systematic search for variations of brightness in stellar objects, including the observation of a candidate for the Thorne–Żytkow object. She was also a member of the team that discovered the supernova ASASSN-15lh.

<span class="mw-page-title-main">Marta Graciela Rovira</span> Argentine astrophysicist

Marta Graciela Rovira is an Argentine astrophysics researcher and was first woman to be named president of CONICET, the government agency that directs and coordinates most of the academic research performed in universities and institutes throughout the country.

References

  1. 1 2 "Mi padre, por Carlos Sahade". www.unlp.edu.ar. 9 June 2014. Retrieved 2017-10-01.
  2. 1 2 3 4 5 6 7 8 9 10 "Una vida estelar". nexciencia.exactas.uba.ar (in European Spanish). 2012-12-21. Retrieved 2017-10-01.
  3. 1 2 3 4 5 6 7 8 9 iafe. "Jorge Sahade: Alma Mater of IAFE" (PDF) (in Spanish). Retrieved March 30, 2015.
  4. 1 2 3 4 5 6 7 eldia.com.ar. "Jorge Sahade died, international astronomer trained in La Plata" (in Spanish). Retrieved August 12, 2014.
  5. 1 2 3 "died Jorge Sahade, outstanding Argentine astronomer". lvl12.com.ar (in Spanish). Archived from the original on August 13, 2014. Retrieved August 12, 2014.
  6. "Jorge Sahade, an astronomical loss" (PDF).
  7. elpais.com (1 April 2015). "Women's access to science is a social problem". El País (in Spanish).
  8. "Asteroids Argentinos". asteroides-liada.blogspot.com.ar (in Spanish). Retrieved August 12, 2014.
  9. "Five scientists of the Conicet, illustrious citizens of La Plata". eldia.com.ar (in Spanish). Retrieved August 18, 2014.
  10. Sahade, J.; Huang, S. S.; Struve, O.; Zebergs, V. (1959). "Review of The spectrum of beta Lyrae by J. Sahade, S. S. Huang, O. Struve, and V. Zebergs". The Observatory. 79: 155. Bibcode:1959Obs....79..155S.