David Le Mignant

Personal:
Name (first, last):	Le Mignant, David
Born:	August 21, 1969 in Henebont (France)
Nationality:	French
Profesional address:	W. M. Keck Observatory (WMKO)
	65-1120 Mamalahoa Highway
	Kamuela HI96743 - U.S.A.
	Phone: +1-808-881 3817
	Fax : +1-808-885 4464
E-contact:	davidl@keck.hawaii.edu http://www2.keck.hawaii.edu/optics/staff/dlm/

Professional Focus:
Observational Astrophysics:	The shaping of preplanetary nebulae. Volcanism on Io. Evolution of Massive Stars.
Instrumentation and observing methods:	Laser Guide Star Adaptive Optics (AO) Natural Guide Star (AO) Near-infrared observing methods: Direct imaging from 1 to 5 µm Fabry-Pérot imaging and coronagraphy Long Slit and Integral Field Spectroscopy

Employment History:

May 2005 - July 2006	Senior AO Instrument Scientist at W. M. Keck Observatory LGSAO science operations manager, responsible for the "LGSAO operation transitions" Completion of LGSAO integration and performance characterization.
May 2004 - May 2005	Senior AO Instrument Scientist at WMKO Develop and implement operational model (software, procedure, support) for the Keck II LGS AO system. Responsible for NGS AO science operations at Keck. Support new instrument development and integration (Interferometer Nuller / OSIRIS).
August 2001 - May 2004	AO Instrument Scientist / Astronomer at WMKO CARA - WMKO staff member. Develop and implement operation software for the Keck AO systems and instruments. Support AO observing operations AO instrument Integration (NIRC2) and Development (AO LGS). Bringing Keck I and Keck II Adaptive Optics Systems to routine operations Optimization and characterization of the AO systems. Participate in the development of the Keck Interferometer.
May 2000 - July 2001	AO researcher/ Astronomer at WMKO Two year post-doc contract Develop and implement support tools for the Keck II AO system. Develop Keck I AO system Bring Keck I and Keck II Adaptive Optics Systems to routine operations Participate in developmen of the Keck Interferometer
October 1999 - March 2000	Fellowship at the Observatoire de Grenoble. Search for low-mass PMS companions to X-ray selected late B-type stars. Collaboration on GraF data analysis and GriF design phase.
March 99 - September 99	Fellowship at the European Southern Observatory Garching Defining the observing modes, the data reduction and calibration software for the spectro-imaging modes of the VLT NAOS/CONICA camera. Study of the eta Carinae nebulae shape and kinematics.
August 1995 - December 1998	Ph. D. at the European Southern Observatory (ESO) La Silla Observatory - Chile under the supervision of Dr. R. Gredel (ESO), Dr. M. Heydari-Malayeri (Paris Observatory) and A. Chalabaev (Grenoble Observatory)
	Research: The study of nebulae around Luminous Blue Variable Stars: Taking advantage of the ADONIS instrument observing capabilities.
March 1995 - June 1995	``Stage de DEA'' - (Profesional pratice of the Master's Degree) at the Côte d'Azur Observatory (France) under the supervision of Dr. F. Vakili (OCA), in collaboration with Ph. Stee, R. Hirata and the Grand Interféromètre à 2 Télescopes (GI2T) team. Subject: Studies of gamma Cassiopae asymetric envelope from GI2T optical interferometric data

Ph. D. in Astrophysics and Space Sciences Université D. Diderot - ParisVII
The study of nebulae around Luminous Blue Variable Stars: Taking advantage of the ADONIS instrument observing capabilities.
A presentation and discussion of the different observing modes offered with the combination of the adaptive optics instrument, its two near-infrared cameras and their associated prefocal optics including two Fabry-Pérot etalons, a polarizer, a coronograph and the Grenoble `GraF` spectro-3D is first given, focusing on the optimized observations procedures I developed. The new results from a study of Magellanic Clouds LBVs observed with and without coronographic masks are presented. eta Carinae has been studied under different modes from mid-infrared to spectro-imaging with coronographic mask, and also with the Grenoble GraF spectro-3D instrument during its first test runs. New insights on this intriguing object are revealed.

Ph. D. in Astrophysics and Space Sciences
Université D. Diderot - ParisVII

The study of nebulae around Luminous Blue Variable Stars:
Taking advantage of the ADONIS instrument observing capabilities.

A presentation and discussion of the different observing modes offered with the combination of the adaptive optics instrument, its two near-infrared cameras and their associated prefocal optics including two Fabry-Pérot etalons, a polarizer, a coronograph and the Grenoble GraF spectro-3D is first given, focusing on the optimized observations procedures I developed.
The new results from a study of Magellanic Clouds LBVs observed with and without coronographic masks are presented. eta Carinae has been studied under different modes from mid-infrared to spectro-imaging with coronographic mask, and also with the Grenoble GraF spectro-3D instrument during its first test runs. New insights on this intriguing object are revealed.

Education:

December 98	Doctorat de l'Université ParisVII Spécialité: Astrophysique et Techniques Spatiales (equ. Ph. D. in Astrophysics)
June 1995	DEA Astrophysique et Techniques Spatiales (with honors) Université ParisVII (equ. Master's Degree in Astrophysics)
June 1994	Maîtrise de Sciences Physiques (with honors) Universitée de RennesI (equ. BA in Physics Sciences)
June 1994	Diplome d'Astronomie de l'Universitée de RennesI (with honors) (equ. Rennes University Graduate Studies in Astronomy)
June 1989	Diplome Universitaire Technologique en Chimie
June 1987	Baccalauréat C (Mathematics, Physics)