Wikipedia

David Elbaz

David Elbaz (born March 18, 1966) is a French observational astrophysicist specializing in galaxy formation and evolution. He is a Research Director at the Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA-Saclay), where he has been a researcher in the Astrophysics Division (AIM) since 1994. He led the "Cosmology and Evolution of Galaxies" laboratory for approximately a decade and has been the managing editor of the journal Astronomy & Astrophysics since 2018.[1]

David Elbaz
Born (1966-03-18) 18 March 1966 (age 58)
Paris, France
NationalityFrench
CitizenshipFrench
Alma materJoseph Fourier University
SpousePascale
ChildrenNathan, Gabriel
AwardsChrétien Award (2000)
Prix Jaffé (2017)
Member of Academia Europaea (2019)
Scientific career
FieldsCosmology
InstitutionsFrench Alternative Energies and Atomic Energy Commission
Thesis Origine du fer dans le milieu intra-amas et distribution du gaz X dans les amas de galaxies  (1994)
Doctoral advisorJames Lequeux, Monique Arnaud
Websitehttp://david.elbaz3.free.fr/

Biography

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Elbaz's grandparents moved to France from Morocco at the beginning of the 20th century. He was born and raised in the Paris area. He attended the École Nationale Supérieure de Physique (ENSPG) in Grenoble, where he obtained an engineering degree in 1990. He completed his PhD in Astrophysics in 1994 at the Université Joseph Fourier in Grenoble with a thesis entitled "Origine du fer dans le milieu intra-amas et distribution du gaz X dans les amas de galaxies".[2] His supervisors were James Lequeux and Monique Arnaud.[3] In 2005, he was awarded an habilitation from the Paris-Sud University.

Elbaz has supervised 14 postdoctoral researchers and 7 PhD students, two of whom received awards for their dissertations: H. Aussel (1999)[4] and C. Schreiber (2015).[5] He has been teaching the Galaxy Evolution[6] course in the Masters program entitled Recherche Astronomie, Astrophysique et Ingénierie Spatiale de Paris since 2005.[7]

Research areas

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Elbaz has made contributions in observational extragalactic astrophysics through space infrared and submillimeter observations.[8] He has been recognized as an ISI Highly Cited researcher[9] by Clarivate Analytics. In 2001, using new data from the Infrared Space Observatory, Elbaz and Ranga Chary produced a suite of galaxy spectral energy distribution templates. Along with the current knowledge of the galaxy redshift distribution, they were able to interpret the cosmic infrared background as being produced to at least 70% level from dust-enshrouded star formation in luminous infrared galaxies.[10]

The advent of the Spitzer Space Telescope in 2003 enabled extremely deep observations in mid-infrared. Elbaz and his collaborators analyzed observations from the Great Observatories Origins Deep Survey and demonstrated that the star formation rate of individual galaxies increases due to environmental effects up to a critical galaxy density at redshift one, above which it decreases again, concluding that it suggests that galaxy evolution is not independent from structure formation at larger scales in the universe.[11]

Five years later, using deep far infrared observations from the Herschel Space Observatory, Elbaz led a study, writing that galaxies across cosmic time form stars in two main modes: one placing them in the "main sequence", where their star formation rate correlates tightly with their stellar mass, and the other where the galaxies are more compact and form stars more efficiently departing from this correlation.[12] Using observations from ALMA, his group also discovered[13] a dominant population of optically invisible massive galaxies in the early universe.[14]

Awards

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Elbaz has received several awards, including:

Administrative duties

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Elbaz's duties in the astrophysics' community include:

  • Managing Editor of Astronomy & Astrophysics, 2018–present
  • Member of the ESA SPICA Science Team, 2018–2021[17]
  • Member of the Euclid France steering committee, 2013–present
  • Member of the ESA Astronomy Working Group,[18] 2015–2018
  • President of the International Space Advisory Board for the SPICA satellite for JAXA, 2015–2016

Public outreach

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Elbaz has been interviewed on various topics of modern astrophysics by French media, including Le Monde,[19] France Culture,[20] and Sciences et Avenir.[21] He has written scenarios and participated in shows that involve science and art that have been presented in various theaters in France,[22][23][24] including:

Elbaz has authored several science books:

  • A la recherche de l'univers invisible: matière noire, énergie sombre, trous noirs,[31] 2016, Odile Jacob; it received the "Prix Sciences et Philosophie" in 2017.[32]
  • Αναζητώντας το αόρατο σύμπαν: σκοτεινή ύλη, σκοτεινή ενέργεια, μαύρες τρύπες,[33] 2021, Crete University Press.
  • Le vase de Pépi, 2007, Odile Jacob.[34]
  • ...et Alice Tao se souvint du futur, 2010, Odile Jacob.[35]
  • La plus belle ruse de la lumière, 2021, Odile Jacob.[36]

References

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  1. ^ "Astronomy & Astrophysics (A&A)". www.aanda.org. Retrieved October 28, 2020.
  2. ^ Elbaz, David (January 1, 1994). Origine du fer dans le milieu intra-amas et distribution du gaz X dans les amas de galaxies (thesis thesis). Grenoble 1.
  3. ^ "Astronomy Tree - David Elbaz". academictree.org. Retrieved May 30, 2020.
  4. ^ "French Physical Society Best PhD Thesis 1999".
  5. ^ Springer Thesis Prize 2015.
  6. ^ "cours galaxies". david.elbaz3.free.fr. Retrieved May 30, 2020.
  7. ^ "Master 2 Recherche". ufe.obspm.fr. Retrieved May 30, 2020.
  8. ^ "David Elbaz - Google Scholar Citations". scholar.google.gr. Retrieved May 30, 2020.
  9. ^ "David Elbaz's Publons profile". publons.com. Retrieved May 30, 2020.
  10. ^ Chary, R.; Elbaz, D. (August 2001). "Interpreting the Cosmic Infrared Background: Constraints on the Evolution of the Dust-enshrouded Star Formation Rate". Astrophysical Journal. 556 (2): 562–581. arXiv:astro-ph/0103067. Bibcode:2001ApJ...556..562C. doi:10.1086/321609. ISSN 0004-637X. S2CID 6728549.
  11. ^ Elbaz, D.; Daddi, E.; Le Borgne, D.; Dickinson, M.; Alexander, D. M.; Chary, R.-R.; Starck, J.-L.; Brandt, W. N.; Kitzbichler, M.; MacDonald, E.; Nonino, M. (June 2007). "The reversal of the star formation-density relation in the distant universe". Astronomy & Astrophysics. 468 (1): 33–48. arXiv:astro-ph/0703653. Bibcode:2007A&A...468...33E. doi:10.1051/0004-6361:20077525. ISSN 0004-6361.
  12. ^ Elbaz, D.; Dickinson, M.; Hwang, H. S.; Díaz-Santos, T.; Magdis, G.; Magnelli, B.; Le Borgne, D.; Galliano, F.; Pannella, M.; Chanial, P.; Armus, L. (September 2011). "GOODS-Herschel: an infrared main sequence for star-forming galaxies". Astronomy & Astrophysics. 533: A119. arXiv:1105.2537. Bibcode:2011A&A...533A.119E. doi:10.1051/0004-6361/201117239. ISSN 0004-6361.
  13. ^ Wang, T.; Schreiber, C.; Elbaz, D.; et, al. (August 2019). "A dominant population of optically invisible massive galaxies in the early Universe". Nature. 572 (7768): 211–214. arXiv:1908.02372. Bibcode:2019Natur.572..211W. doi:10.1038/s41586-019-1452-4. ISSN 1476-4687. PMID 31391562. S2CID 199472930.
  14. ^ Cho, Adrian (August 7, 2019). "Galaxy hunters spot hidden giants in the early universe". Science | AAAS. Retrieved June 1, 2020.
  15. ^ "Chrétien International Research Grants | American Astronomical Society". aas.org. Retrieved May 30, 2020.
  16. ^ "Academy of Europe: Elbaz David". www.ae-info.org. Retrieved May 30, 2020.
  17. ^ "ESA SPICA Science Team Members".
  18. ^ "AWG Homepage - AWG - Cosmos". www.cosmos.esa.int. Retrieved May 30, 2020.
  19. ^ "L'énigme de la matière noire nargue la physique". Le Monde.fr (in French). April 2, 2018. Retrieved June 1, 2020.
  20. ^ "David Elbaz : biographie, actualités et émissions France Culture". France Culture (in French). Retrieved June 1, 2020.
  21. ^ "David Elbaz : "Tout porte à croire que nous sommes à la veille d'un bouleversement majeur"". Sciences et Avenir (in French). May 3, 2017. Retrieved June 1, 2020.
  22. ^ "Les analogies entre cerveau et univers". www.franceinter.fr (in French). March 25, 2019. Retrieved May 30, 2020.
  23. ^ "La Tête dans les étoiles". Les Archives du Spectacle (in French). October 12, 2011. Retrieved May 30, 2020.
  24. ^ "Univers et matière". rcf.fr (in French). Retrieved May 30, 2020.
  25. ^ "La tête dans les étoiles - Spectacle - 2011". data.bnf.fr. Retrieved May 30, 2020.
  26. ^ "Alain DESTEXHE - École des Neurosciences de Paris".
  27. ^ a b "Marc Feld, Un magicien". Festival d'Automne à Paris (in French). Retrieved June 1, 2020.
  28. ^ "Magie et astrophysique". www.rfj.ch (in Swiss French). March 13, 2012. Retrieved May 30, 2020.
  29. ^ "video jonglerie astrale". vdlvdl (in French). Retrieved May 30, 2020.
  30. ^ "Vincent de Lavenère - Jonglerie Musicale". vdlvdl (in French). Retrieved May 30, 2020.
  31. ^ "À la recherche de l'Univers invisible - Éditions Odile Jacob". www.odilejacob.fr (in French). Retrieved May 30, 2020.
  32. ^ "David ELBAZ, lauréat du prix X-Philo 2017". La Jaune et la Rouge (in French). November 24, 2017. Retrieved May 30, 2020.
  33. ^ Elbaz, David (2021). ΑΝΑΖΗΤΩΝΤΑΣ ΤΟ ΑΟΡΑΤΟ ΣΥΜΠΑΝ: Σκοτεινή ύλη, σκοτεινή ενέργεια, μαύρες τρύπες (in Greek). Crete University Press. ISBN 978-960-524-643-3.
  34. ^ "Vase de Pépi - Éditions Odile Jacob". www.odilejacob.fr (in French). Retrieved May 30, 2020.
  35. ^ "... et Alice Tao se souvint du futur - Éditions Odile Jacob". www.odilejacob.fr (in French). Retrieved May 30, 2020.
  36. ^ Elbaz, David (2021). La plus belle ruse de la lumière (in French). Odile Jacob. ISBN 978-2415000721.
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