Gart Westerhout

Gart Westerhout
Gart Westerhout
Biographie
Naissance
Décès
Voir et modifier les données sur Wikidata (à 85 ans)
CatonsvilleVoir et modifier les données sur Wikidata
Nationalités
Formation
Activité
Autres informations
A travaillé pour
Directeur de thèse

Gart Westerhout, né le et mort le , est un astronome américain d'origine néerlandaise[1]. Spécialisé dans le domaine de la radioastronomie, il a complété des études à l'université de Leyde, puis a émigré aux États-Unis, où il a occupé plusieurs fonctions académiques et gouvernementales.

Il est surtout connu pour avoir créé le catalogue Westerhout recensant des radiosources[2],[3].

Biographie

Westerhout naît le à La Haye en Hollande-Méridionale[4]. Il est le fils de Gerrit Westerhout dit Gart Westerhout[5], un architecte, et de Magda Foppe, une écrivaine[4]. D'après William E. Howard III, il commence à s'intéresser à l'astronomie dès son enfance, lorsque son père conçoit un sanatorium permettant à ses patients, atteints de tuberculose, d'observer les constellations lors de leurs séjours[4].

En 1945, Westerhout entreprend des études d'astronomie à l'université de Leyde[4]. Il commence à se spécialiser en radioastronomie dès le début des années 1950[4] en travaillant à l'Observatoire de Leyde aux côtés de Hendrik Christoffel van de Hulst et de Jan Oort. Il participe aux premières études de la raie à 21 centimètres[4].

Il reçoit un diplôme en physique et astronomie, puis un PhD dans ces disciplines en 1958.

Alors qu'il est à l'université, il occupe les postes d'assistant (1952–1956), d'officier scientifique (Scientific Officer, 1956–1959) et d'officier scientifique en chef (1959–1962).

En 1962, il déménage aux États-Unis et devient le premier directeur du programme d'astronomie de l'université du Maryland fondé par Uco van Wijk (en). Poste qu'il occupe jusqu'en 1973. De 1973 à 1977, il est professeur d'astronomie à la même université ainsi que professeur invité à l'Institut Max-Planck de radioastronomie (1973-1974).

De 1977 à 1993, il est le directeur scientifique de l'Observatoire naval des États-Unis.

Il meurt le [4], à l'âge de 85 ans, à Catonsville, près de Baltimore, dans le Maryland.

Honneurs et distinctions

L'astéroïde (5105) Westerhout est nommé en son honneur.

Notes et références

(en) Cet article est partiellement ou en totalité issu de l’article de Wikipédia en anglais intitulé « Gart Westerhout » (voir la liste des auteurs).
  1. (en) « Gart Westerhout, astronomer – Baltimore Sun », Articles.baltimoresun.com (consulté le )
  2. (en) G. Westerhout, « VizieR Online Data Catalog: Westerhout's Catalogue of 82 Discrete Sources (Westerhout 1958) », VizieR Online Data Catalog, vol. 8064,‎ (résumé, lire en ligne)
  3. (en) G. Westerhout, « The distribution of atomic hydrogen in the outer parts of the Galactic System », Bulletin of the Astronomical Institutes of the Netherlands, vol. 13,‎ , p. 201 (ISSN 0365-8910, lire en ligne)
  4. a b c d e f et g (en) William E. Howard III et Ellen Bouton (mise à jour), « Gart Westerhout » [html], sur National Radio Astronomy Observatory, 2009 [mis à jour le 20 novembre 2012] (consulté le )
  5. (nl) « Gerrit Westerhout (1893-1976) » [html], sur Nederlands Architectuurinstituut (consulté le )

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