{{Short description|French astrophysicist (1920–2015)}} {{Infobox person | name = Lucienne Divan | birth_date = 2 September 1920 | birth_place = Sainte-Radegonde-en-Touraine (Indre-et-Loire, France) | death_date = 21 December 2015 | death_place = | occupation = Astrophysicist | honours = Legion of Honor (1988) }}
'''Lucienne Divan''', (September 2, 1920 – December 21, 2015) was a French astrophysicist, who spent her career at the Institut d'astrophysique de Paris.<ref>{{Cite web|url=https://www.enaos.fr/P1220.aspx?IdPer=378305|title = Death of Madame Lucienne DIVAN}}</ref> Divan worked on the spectral and luminosity classification of stars and on interstellar absorption.<ref>{{Cite book|last=Schmadel|first=Lutz|title=Dictionary of Minor Planet Names|publisher=Springer Berlin Heidelberg|year=2013|isbn=9783662028049|pages=248}}</ref>
== Early life and education == Divan was born in Sainte-Radegonde-en-Touraine, Indre-et-Loire. A student of the École normale supérieure de jeunes filles,<ref>Sur l'école normale de Sèvres, dans la période de guerre où Lucienne Divan était étudiante, voir: https://www.archicubes.ens.fr/sites/default/files/A_lEcole_de_S%c3%a8vres_1995.pdf</ref> Lucienne Divan passed her examination in physics (first, 1945),<ref>{{Cite web|url=http://rhe.ish-lyon.cnrs.fr/?q=agregsecondaire_laureats&annee_op=%3D&annee%5Bvalue%5D=1945&annee%5Bmin%5D=&annee%5Bmax%5D=&nom=&periode=All&concours=15&items_per_page=10&page=1.|title=Les agrégés de l'enseignement secondaire. Répertoire 1809-1960 | Ressources numériques en histoire de l'éducation}}</ref> then pursued her career at the Institut d'astrophysique de Paris from 1949, where she joined Daniel Barbier and Daniel Chalonge.<ref>{{cite web|title=QUELQUES COLLOQUES IMPORTANTS POUR L'IAP ENTRE 1937 ET 1953|url=http://www.iap.fr/institut/anniversaires/documents/texte/2013_expo75/missions/Colloques-anciens_A1.pdf|website=iap.fr|language=fr|access-date=8 February 2020}}</ref> When she retired, she moved to the Haute-Provence Observatory; she died on December 21, 2015, at Saint-Michel-l'Observatoire.<ref>{{cite web|title=Lucienne Divan|url=https://www.dansnoscoeurs.fr/lucienne-divan/1617540|website=dansnoscoeurs.fr|language=fr|access-date=8 February 2020}}</ref>
== Career == With Barbier and Chalonge, Lucienne Divan contributed to the development of the three-dimensional stellar spectroscopic classification system called Classification of the IAP or BCD (for Barbier-Chalonge-Divan). This system was based on the spectro-photometric properties of the Balmer discontinuity in stellar spectra from a series of articles published in the ''Annals of Astrophysics'' entitled "''Researches on stellar continuous spectra''." The BCD classification system for stars is not utilized today, scientists prefer the MK spectral classification system.{{citation needed|date=May 2024}} Divan also published on the spectral properties of particular stars like Be stars, and particular variable stars like V533 Hercules and FG Sagittae.<ref>{{cite web|title=astrophysics data system|url=https://ui.adsabs.harvard.edu/search/q=author%3A%22divan%22%2C%20year%3A1900-1980&sort=date%20desc%2C%20bibcode%20desc&p_=0|website=ui.adsabs.harvard.edu|access-date=8 February 2020}}</ref>
Lucienne Divan is the author and co-author of 74 articles listed in the NASA/ADS bibliography.<ref>{{Cite web|title=Search|url=https://ui.adsabs.harvard.edu/|website=Astrophysics Data System}}</ref>
== Honors == * 1971 - Asteroid (1892) Lucienne, discovered and named by Paul Wild. * 1973 - Prix Jules Janssen (vermeil)<ref>{{cite news|title=LES PRIX DE L'ACADÉMIE|url=https://www.lemonde.fr/archives/article/1973/11/15/les-prix-de-l-academie_2545722_1819218.html|newspaper=Le Monde.fr|date=15 November 1973|access-date=8 February 2020}}</ref> * 1988 - Knight of the Legion of Honor<ref>{{cite news|title=Légion d'honneur|url=https://www.lemonde.fr/archives/article/1988/07/15/legion-d-honneur_4091232_1819218.html|newspaper=Le Monde.fr|language=fr|date=15 July 1988|access-date=8 February 2020}}</ref>
== References == {{Reflist}}
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{{DEFAULTSORT:Divan, Lucienne}} Category:1920 births Category:2015 deaths Category:French astrophysicists