Jump to content

Julio Ángel Fernández: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
News about the National Academy of Sciences
New links
Line 1: Line 1:
[[Image:Julio Ángel Fernández.jpg|right|thumbnail]]
[[Image:Julio Ángel Fernández.jpg|right|thumbnail]]


'''Lic. Julio Ángel Fernández Alves''' (born [[Montevideo]], 5 April 1946) is a [[Uruguay]]an astronomer and member of the department of astronomy at the [[Universidad de la República]] in [[Montevideo]]. He is also a member of PEDECIBA, (the program for development of basic sciences in Uruguay).<ref name=julio>{{cite web|title=Página personal del Dr. Julio A. Fernández|author=Julio Fernandez|work=Universidad de la República|url=http://www.pedeciba.edu.uy/personas/fernande.htm|accessdate=2008-02-08}}</ref> From 2005 to 2010, he was the Dean of the Universidad de la Republica's Faculty of Sciences.<ref>{{cite web|title=
'''Lic. Julio Ángel Fernández Alves''' (born [[Montevideo]], 5 April 1946) is a [[Uruguay]]an astronomer and member of the department of astronomy at the [[Universidad de la República]] in [[Montevideo]]<ref>{{Cite web|url=http://www.fisica.edu.uy/?q=node/311|title=Departamento de Astronomía, Instituto de Física, Facultad de Ciencias, Universidad de la República|last=|first=|date=|website=|publisher=|access-date=}}</ref>. He is also a member of PEDECIBA, (the program for development of basic sciences in Uruguay)<ref>{{Cite web|url=http://www.pedeciba.edu.uy/fisica/indice.php|title=PEDECIBA Física|last=|first=|date=|website=|publisher=|access-date=}}</ref><ref name=julio>{{cite web|title=Página personal del Dr. Julio A. Fernández|author=Julio Fernandez|work=Universidad de la República|url=http://www.pedeciba.edu.uy/personas/fernande.htm|accessdate=2008-02-08}}</ref>, and the Uruguayan Society of Astronomy<ref>{{Cite web|url=http://www.astronomia.edu.uy/sua/websua_files/Page879.htm|title=Sociedad Uruguaya de Astronomía|last=|first=|date=|website=|publisher=|access-date=}}</ref>. From 2005 to 2010, he was the Dean of the Universidad de la Republica's Faculty of Sciences.<ref>{{cite web|title=
Los mundos helados de Julio A. Fernández|author= Heber Rizzo Baladán |url=http://astroseti.org/noticia/2452/los-mundos-helados-de-julio-a-fernandez|date=2006|accessdate=2009-11-07}}</ref> The asteroid [[5996 Julioangel]], discovered in 1983, was named after him.
Los mundos helados de Julio A. Fernández|author= Heber Rizzo Baladán |url=http://astroseti.org/noticia/2452/los-mundos-helados-de-julio-a-fernandez|date=2006|accessdate=2009-11-07}}</ref> The asteroid [[5996 Julioangel]], discovered in 1983, was named after him<ref>{{Cite web|url=http://www.minorplanetcenter.net/db_search/show_object?utf8=%E2%9C%93&object_id=5996|title=Julioangel asteroid. Minor Planet Center. The International Astronomical Union.|last=|first=|date=|website=|publisher=|access-date=}}</ref>.

He is an active researcher of the Researchers National System of Uruguay<ref>{{Cite web|url=http://www.sni.org.uy/investigadores_sni?area=1|title=Sistema Nacional de Investigadores (Uruguay)|last=|first=|date=|website=|publisher=|access-date=}}</ref>.


Fernandez is member of the [[National Academy of Sciences|National Academy of Sciences of the United States]]<ref>{{Cite web|url=http://www.nasonline.org/news-and-multimedia/news/may-3-2016-NAS-Election.html|title=News from the National Academy of Sciences|last=|first=|date=|website=|publisher=|access-date=}}</ref><ref>{{Cite news|url=http://www.enperspectiva.net/home/ciencia-y-tecnologia-astronomo-uruguayo-ingresa-a-la-academia-nacional-de-ciencias-de-eeuu/|title=Astrónomo uruguayo ingresa a la Academia Nacional de Ciencias de EEUU. En Perspectiva|last=|first=|date=|work=|access-date=|via=}}</ref><ref>{{Cite news|url=http://www.republica.com.uy/historico-astronomo-uruguayo/567868/|title=Histórico, astrónomo uruguayo será Miembro de la Academia de Ciencias de EE.UU. Diario La República.|last=|first=|date=|work=|access-date=|via=}}</ref>.
Fernandez is member of the [[National Academy of Sciences|National Academy of Sciences of the United States]]<ref>{{Cite web|url=http://www.nasonline.org/news-and-multimedia/news/may-3-2016-NAS-Election.html|title=News from the National Academy of Sciences|last=|first=|date=|website=|publisher=|access-date=}}</ref><ref>{{Cite news|url=http://www.enperspectiva.net/home/ciencia-y-tecnologia-astronomo-uruguayo-ingresa-a-la-academia-nacional-de-ciencias-de-eeuu/|title=Astrónomo uruguayo ingresa a la Academia Nacional de Ciencias de EEUU. En Perspectiva|last=|first=|date=|work=|access-date=|via=}}</ref><ref>{{Cite news|url=http://www.republica.com.uy/historico-astronomo-uruguayo/567868/|title=Histórico, astrónomo uruguayo será Miembro de la Academia de Ciencias de EE.UU. Diario La República.|last=|first=|date=|work=|access-date=|via=}}</ref>.

Revision as of 21:13, 7 May 2016

Lic. Julio Ángel Fernández Alves (born Montevideo, 5 April 1946) is a Uruguayan astronomer and member of the department of astronomy at the Universidad de la República in Montevideo[1]. He is also a member of PEDECIBA, (the program for development of basic sciences in Uruguay)[2][3], and the Uruguayan Society of Astronomy[4]. From 2005 to 2010, he was the Dean of the Universidad de la Republica's Faculty of Sciences.[5] The asteroid 5996 Julioangel, discovered in 1983, was named after him[6].

He is an active researcher of the Researchers National System of Uruguay[7].

Fernandez is member of the National Academy of Sciences of the United States[8][9][10].

Kuiper belt

In 1980, in his paper On the existence of a comet belt beyond Neptune, Fernández proposed that periodic comets arrived too frequently into the inner Solar System to be accounted for solely by having arrived from the Oort cloud, and that a trans-Neptunian belt of comets at around 50 AU would be required to explain them.[11] Subsequent computer models by Martin Duncan, Tom Quinn and Scott Tremaine in Canada supported the view, and led eventually to the discovery of the Kuiper belt.[12] Many astronomers, including David Jewitt, who discovered the belt, believe that Fernández deserves more credit than anyone else, including Gerard Kuiper, for predicting its existence.[13] He has subsequently published many papers on the trans-Neptunian population.[3]

Definition of planet

In 2006, Fernández was one of a number of dissenters at the IAU's meeting to establish the first definition of "planet." As an alternative to the IAU's draft proposal, which had included Pluto, its moon Charon and Ceres among the planets, Fernández's proposed definition reserved the term "planet" only for those objects in the Solar System which had cleared their neighbourhoods of planetesimals, describing those objects which had not cleared their orbits yet retained a spherical shape as "planetoids."[14] The IAU's final definition incorporated much of Fernández's proposal, though the objects were christened "dwarf planets."[15] The event originated the word "Plutoed" that was selected as the "word of the year 2006" by the American Dialect Society.[16]

References

  1. ^ "Departamento de Astronomía, Instituto de Física, Facultad de Ciencias, Universidad de la República".
  2. ^ "PEDECIBA Física".
  3. ^ a b Julio Fernandez. "Página personal del Dr. Julio A. Fernández". Universidad de la República. Retrieved 2008-02-08.
  4. ^ "Sociedad Uruguaya de Astronomía".
  5. ^ Heber Rizzo Baladán (2006). "Los mundos helados de Julio A. Fernández". Retrieved 2009-11-07.
  6. ^ "Julioangel asteroid. Minor Planet Center. The International Astronomical Union".
  7. ^ "Sistema Nacional de Investigadores (Uruguay)".
  8. ^ "News from the National Academy of Sciences".
  9. ^ "Astrónomo uruguayo ingresa a la Academia Nacional de Ciencias de EEUU. En Perspectiva".
  10. ^ "Histórico, astrónomo uruguayo será Miembro de la Academia de Ciencias de EE.UU. Diario La República".
  11. ^ JA Fernandez (1980). "On the existence of a comet belt beyond Neptune". Observatorio Astronomico Nacional, Madrid. Retrieved 2007-06-20.
  12. ^ M. Duncan, T. Quinn, and S. Tremaine (1988). "The origin of short-period comets". The Astrophysical Journal. Retrieved 2007-06-20.{{cite web}}: CS1 maint: multiple names: authors list (link)
  13. ^ David Jewitt. "WHY "KUIPER" BELT?". University of Hawaii. Retrieved 2007-06-14.
  14. ^ Britt, Robert Roy (2006-08-18). "Pluto May Get Demoted After All". Space.com. Retrieved 2006-08-24.
  15. ^ "IAU 2006 General Assembly: Resolutions 5 and 6". IAU. 24 August 2006.
  16. ^ "Plutoed Voted 2006 Word of the Year". ADS. 5 January 2007.
Retrieved from "https://en.wikipedia.org/enwiki/w/index.php?title=Julio_Ángel_Fernández&oldid=719139726"