Olivier Chesneau (1972 inMozé-sur-Louet – May 17, 2014 inNice[1]) was a Frenchastronomer.
He contributed to a better understanding of several aspects of evolved stars physics, especiallyplanetary nebulae,massive stars andnovae.
Among other discoveries, Olivier Chesneau discovered the "peanut star"HR 5171,[2] the fact that novae explode with anhourglass shape already a few days after outburst (e.g.RS Ophiuchi[3]), or the detection of disks in the heart of planetary nebulae.[4]
The Laboratoire J Lagrange at theCôte d'Azur Observatory in France, andESO established a prize in his memory, The Chesneau Prize.[5]
Minor planet6065 Chesneau is named in his honor.[6]
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