Antoine Émile Henry Labeyrie

Antoine Émile Henry Labeyrie (born 12 May 1943) is a French astronomer, who held the Observational astrophysics chair at the Collège de France between 1991 and 2014. He is currently professor emeretus there,^[1] and continues to work with the Hypertelescope Lise association, which aims to develop an extremely large astronomical interferometer with spherical geometry that might theoretically show features on Earth-like worlds around other suns, as its president.^[2][3] He is a member of the French Academy of Sciences in the Sciences of the Universe (sciences de l'univers) section.^[4] Between 1995 and 1999 he was director of the Haute-Provence Observatory.

Labeyrie graduated from the "grande école" SupOptique (École supérieure d'optique). He invented speckle interferometry,^[5] and works with astronomical interferometers. Labeyrie concentrated particularly on the use of "diluted optics" beam combination or "densified pupils" of a similar type but larger scale than those Michelson used for measuring the diameters of stars in the 1920s, in contrast to other astronomical interferometer researchers who generally switched to pupil-plane beam combination in the 1980s and 1990s.

The main-belt asteroid 8788 Labeyrie (1978 VP2) is named in honor of Antoine Émile Henry Labeyrie and Catherine Labeyrie.^[6] In 2000, he was awarded the The Benjamin Franklin Medal.

See also

• Speckle imaging
• Exoplanets
• Fractionated spacecraft
• Satellite constellation

References

1. http://www.college-de-france.fr/site/professeurs-honoraires/index.htm
2. Govert Schilling (23 February 2006). "The hypertelescope: a zoom with a view". New Scientist.
3. http://m42app.com/hypertelescope/?page_id=48
4. http://www.academie-sciences.fr/archivage_site/academie/membre/Labeyrie_Antoine.htm
5. Attainment of Diffraction Limited Resolution in Large Telescopes by Fourier Analysing Speckle Patterns in Star Images, Labeyrie 1970,Astronomy and Astrophysics, Vol. 6, p. 85
6. Lutz, Schmadel. Dictionary of Minor Planet Names: Addendum to 6th Edition: 2012-2014. p. 86.

• Antoine Labeyrie, Resolved imaging of extra-solar planets with future 10-100 km optical interferometric arrays, Astronomy and Astrophysics Supplement Series 118 (1996), 517-24.
• Antoine Labeyrie, Snapshots of Alien Worlds – The Future of Interferometry, Science 285 (1999), 1864-65 (full text limited to subscribers).
• Tony Reichhardt, French Astronomer Designs Telescope of the Future, Space.com, 16 September 1999.
• Govert Schilling, The hypertelescope: a zoom with a view, New Scientist, n. 2540, 23 February 2006 (full text limited to subscribers, article contains some scientific misconceptions).
• Bruce Dorminey, Astronomers build hypertelescope in southern French alps, Forbes, 26 March 2012
• H. Le Coroller; J. Dejonghe; C. Arpesella; D. Vernet; A. Labeyrie (1 November 2004). "Tests with a Carlina-type hypertelescope prototype I. Demonstration of star tracking and fringe acquisition with a balloon-suspended focal camera". Astronomy & Astrophysics 426 (2): 721–728. doi:10.1051/0004-6361:20041088.
• D. Ricci; H. Le Coroller; A. Labeyrie (22 June 2009). "Extreme coronagraphy with an adaptive hologram : Simulations of exo-planet imaging". Astronomy & Astrophysics 503: 301–308. doi:10.1051/0004-6361/200811529.