CURRICULUM VITÆ. Director of the Observatory of Besançon

Transcription

1 CURRICULUM VITÆ VERNOTTE François Professor of Astronomy and Astrophysics University of Franche-Comté (France) Born in Dole (Jura, France) on October 21 st, 1961 Three children Professionnal address: Personnal address: Observatoire de Besançon 64, avenue Georges Clémenceau 41 bis, avenue de l Observatoire - B. P BESANÇON BESANÇON Cedex Tél. : Tél. : Fax : francois.vernotte-at-obs-besancon.fr Director of the Observatory of Besançon SPECIALTY: Time and Frequency Metrology Methodology and tools Statistical data processing: operator definition in both direct and reverse domain, digital filtering, n th -order differentiation, spectral analysis, moment condition. Parameter estimation: definition of efficient estimators, inverse problem, Bayesian statistics, confidence intervalles, statistical tests. Simulation: modeling and simulation of oscillator noise, Monte-Carlo method, experiment-theory-simulation comparison. Objects of study and projects Time stability analysis: definition of new algorithms for time stability estimation of clocks (quartz, atomic standards, millisecond pulsars), particularly for long and very long term (several years). Study of millisecond pulsar timing: estimation of time stability of millisecond pulsar, estimation of the cosmological gravitationnal wave background, connection of the pulsar coordinate frame to the International Celestial Reference Frame by VLBI measurement. Achievement of a multiple oscillator reference clock: ultra-stable quartz oscillator (high stability for duration lower than 1 seconde) controlled by a hydrogen MASER (high stability in the 1 hour - 1 day range) and by a Cesium atomic clock (high stability for 1 month and above). This topic has led to the HOROM InterReg project (see below), where I supervise two PhD students.

2 A. CAREER 1987 Master (DEA) in Acoustics-Optics-Electronics and Vibrations, option Optics (Besançon), with distinction Engineer in medical image processing (CARRAR company, Saint-Germain-en-Laye, France) Teaching assistant (moniteur) at the Faculty of Science and Technology of Besançon 1991 Ph.D. from the University of Franche Comté in Engineering Science, defended on February 14 th, Subject: Time stability of oscillators: new variances, their properties, their applications. Supervisor: Jean-Jacques Gagnepain Assistant (ATER) at the Faculty of Science and Technology of Besançon Associate Professor (Maître de conférences, 2 nd class in 1992, 1 st class in 1996) in Astronomy and Astrophysics at the Faculty of Science and Technology of Besançon 1998 Habilitation for research supervising (HDR), defended at the University of Franche-Comté (Faculty of Science and Technology, Besançon) on January 16 th, Expert to the Time-Frequency Accreditation Permanent Commission of the FRench ACcreditation COmmittee (COFRAC) Since 2002 Full Professor (Professeur des Universités, 2 nd class in 2002, 1 st class in 2007) in Astronomy and Astrophysics at the Faculty of Science and Technology of Besançon B. SCIENTIFIC RESPONSIBILITIES Direction of the Observatory of Besançon (since April 2002) The Observatory of Besançon consists of 44 members: 16 researchers, 2 post-doctoral researcher, 5 PhD students, 21 engineer/technician/administrative staff. In 2007, I was reelected as head of the observatory of Besançon to a term of 5 years. Astro-Environment Observatory Project (since 2007) I am responsible for a project to extend the scope of the observatory of Besançon to environmental sciences. The UFC has two laboratories in the science of the universe field: UTINAM (UMR 6213, 120 members, see below) and the Laboratory of Chrono-Environnement (UMR 6249, 180 members), whose research topics cover geology, ecology and archeology. This project aims to strengthen collaborations between these two laboratories by creating a research federation, on the one hand, and pooling service activities through the establishment of a Joint Service Unit (UMS) CNRS / UFC, on the other hand. We ask for the implementation of this project for the next four-year term (January 1 st, 2012). Direction of the Laboratory of Astrophysics of the Observatory of Besançon (from 2004 to 2006) Until December 2006, the LAOB (UMR UFC / CNRS 6091) was the only research lab in the observatory of Besançon. The UMR 6091 was structured in 3 research teams: Astrophysics of Large Surveys, Dynamics and Photophysics of Diluted Media, Time and Frequency Metrology. Since January 2007, the LAOB was dissolved by fusion in the Institute UTINAM, UMR 6213 (see below). Participation in the establishment of the Institute UTINAM (UMR 6213) Three laboratories involved in fondamental sciences in Besançon have merged (January 2007) to form the Institute UTINAM: LCMI (chemistry), LPM (molecular physics) and LAOB (astrophysics), or approximately 120 members. I think I played an important role in this process, especially for having convinced Georges Jolicard, professor at LAOB, to be in charge of this project and for having shown the scientific relevance of the project to our parent bodies (UFC and CNRS) as well as to the colleagues from the three laboratories. Council of Doctoral School Louis Pasteur (from 2004 to 2007) As the director of LAOB, I represented the field of astrophysics in the Council of Doctoral School Louis Pasteur which includes the laboratories of mathematics, physics, chemistry and economics of the UFC. Scientific responsibility of the time and frequency metrology team (since 1994) I supervise the research activities of the time and frequency metrology team of the observatory of Besançon. This team which is involved in research as well as in services (maintenance of time scales, time and frequency transfer, calibration), is composed of 3 researchers, 3 engineers and 6 technicians. 2

3 C. RELATIONSHIPS WITH INDUSTRY Contracts with the French Space Agency (CNES): Study and definition of an internal time scale for the Galileo satellites (4 contracts from 1997 to 2006). Expertise to the European Commission (2004) I was appointed as expert to the Galileo Joint Undertaking for participating in the evaluation of responses to calls for tenders on the Galileo European Navigation Satellite System. InterReg : HOROM Project -Reference Clock with Multiple Oscillators- ( ). Project in partnership with the Swiss company Oscilloquartz, the Institute of Microtechnology (Neuchâtel, Switzerland) and the French company Gorgy Timing. Objective: To validate the technological choices of a composite clock. InterReg : SIDGET Project -Integrated System for Diffusion and Generation of a Time Scale- ( ). Project in the continuity of HOROM, in partnership with the Swiss company Oscilloquartz, the Institute of Microtechnology (Neuchâtel, Switzerland) and the French company Gorgy Timing. Objective: To develop a composite clock prototype. D. SCIENTIFIC IMPACT Doctoral Supervision Since 1993, I supervised 6 PhD students and I attended 8 Thesis juries. Reviewer for International Refereed Journals I am referee for the following journals: IEEE Transactions on Instrumentation and Measurement IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control Metrologia. Invited Conferences I have been invited to present the following works: Uncertainties of drift coefficients and extrapolation errors: Application to clock error prediction, F. Vernotte, J. Delporte, M. Brunet, T. Tournier, IV th Time Scales Algorithms Symposium, BIPM (Sèvres, France), March 2002, published in Metrologia 38(4) Time and Frequency Metrology: State of the Art, F. Vernotte, Invited Seminar at the National Observatory, Rio de Janeiro, October 2005 Session chairman I have been session chairman for the following conferences: 18 th European Frequency and Time Forum, session Algorithms, Tests & Measurements, Guildford (UK), April th European Frequency and Time Forum, session Compact clocks, Besançon, March Scientific Council of the University of Franche-Comté I have been elected in 1994, 2002 and 2006 at the Scientific Council of the UFC. National Council of the Universities (CNU), 34 th section In 2007, I was elected to the 34th section of the CNU. In addition to the qualification and promotion of colleagues, this charge involves also the evaluation of laboratories in the field of astronomy and astrophysics with the French Evaluation Agency (AERES). Evaluation of academic structures In addition to the evaluation of national laboratories carried out under the AERES, I was recruited by the University of Lausanne in 2007 as an expert to analyze the self-evaluation report of the Faculty of Geosciences and Environment of Lausanne. Dissemination of scientific culture The dissemination of scientific culture has always been an important part of my activity, including public lectures, observation sessions, visits of the observatory of Besançon and protection of its heritage. That s why I was in charge of the mission for the dissemination of scientific and technological culture in the UFC until

4 E. PUBLICATIONS I - Publications in International Refereed Journals [I-1] F. Vernotte, D. Charraut, E. Lantz, et D. Courjon. Karhunen-loeve transform in optical microscopy. application to linewidth measurement. 29(9): , Septembre Optical Engineering, [I-2] S. Clairemidi et F. Vernotte. Systems of coliding bodies in gravitational fields: evolution and role of the internal rotations. Planets, 58: , Earth, Moon and [I-3] F. Vernotte, E. Lantz, J. Groslambert, et J.J. Gagnepain. Oscillator noise analysis: multivariance measurement. IEEE Transactions on Instrumentation and Measurement, 42(2): , Avril [I-4] F. Vernotte, J. Groslambert, et J.J. Gagnepain. A new method of measurement of the different types of noise altering the output signal of oscillators. Transactions on Instrumentation and Measurement, 42(6): , Octobre IEEE [I-5] M. Planat, V. Giordano, G. Marianneau, F. Vernotte, M. Mourey, C. Eckert, et J. Miehe. Is the frequency noise of an oscillator of deterministic origin? IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 43(2): , [I-6] F. Vernotte, G. Zalamansky, M. McHugh, et E. Lantz. Cut-off frequencies and noise power law model of spectral density: adaptation of the multi-variance method for irregularly spaced timing data using the lowest mode estimator approach. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 43(3): , [I-7] M.P. McHugh, G. Zalamansky, F. Vernotte, et E. Lantz. 1 Pulsar timing and the upper limits on a gravitational wave background: a Bayesian approach. Physical Review D, 54(10): , Novembre [I-8] G. Zalamansky, C. Robert, F. Vernotte, et F. Taris. 1 Search of a gravitational wave background in timing residuals of PSR : Minimal model and upper limits on Ω gr. Monthly Notices of The Royal Astronomical Society, 288: , Juillet [I-9] F. Vernotte, G. Zalamansky, et E. Lantz. 1 Time stability characterization and spectral aliasing. Part I: A time domain approach. Metrologia, 35(5): , Décembre [I-10] F. Vernotte, G. Zalamansky, et E. Lantz. 1 Time stability characterization and spectral aliasing. Part II: A frequency domain approach. Metrologia, 35(5): , Décembre [I-11] F. Vernotte et G. Zalamansky. 1 A Bayesian method for oscillator stability analysis. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 46(6): , Novembre [I-12] F. Vernotte, J. Delporte, M. Brunet, et T. Tournier. 1 Uncertainties of drift coefficients and extrapolation errors: Application to clock error prediction. 38(4): , Décembre Metrologia, [I-13] F. Vernotte. 1 Application of the moment condition to noise simulation and to stability analysis. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 49(4): , Avril Papers from I-7 to I-13 are available on: 4

5 [I-14] Auger Collaboration (dont F. Vernotte). Properties and performance of the prototype instrument for the pierre auger observatory. Nuclear Instruments and Methods in Physics Research A, 523:50 95, [I-15] D. A. Howe, R. L. Beard, C. A. Greenhall, F. Vernotte, W. J. Riley, and T. K. Peppler. Enhancements to GPS operations and clock evaluations using a "total" Hadamard deviation. IEEE transactions on Ultrasonics, Ferroelectrics and Frequency Control, 52(8): , Août [I-16] F. Vernotte. Stabilité temporelle et fréquentielle des oscillateurs : modèles. R680/10, Techniques de l Ingénieur, RE1(R680):R680/1 [I-17] F. Vernotte. Stabilité temporelle et fréquentielle des oscillateurs : outils d analyse. Techniques de l Ingénieur, RE1(R681):R681/1 R681/10, [I-18] P.M. Mbaye, A. Makdissi, C. Plantard and F. Vernotte. Composite clock: New algorithm for servoing a VCO to a H-maser and a Caesium clock , Metrologia, 45, pp. [I-19] C. Plantard, P.M. Mbaye, and F. Vernotte. Hardware timescale including a Cs clock, a H-maser clock and a VCO. Metrologia, 45, pp , [I-20] A. Makdissi, E. Declercq and F. Vernotte. Stability variances: A filter approach. IEEE transactions on Ultrasonics, Ferroelectrics and Frequency Contol, 2009 (submitted, see II - Last papers published in proceedings of international conferences [II-1] F. Vernotte, J. Delporte, and M. Brunet. A re-revisited three cornered hat method for estimating clock instabilities. In 18th European Frequency and Time Forum, Guildford, UK, Avril [II-2] J. Saalaoui, F. Lardet-Vieudrin, E. Rubiola, S. Galliou, F. Vernotte, and V. Giordano. Phase correction of reference frequency signals transmission by optical fiber link. In 18th European Frequency and Time Forum, Guildford, UK, Avril [II-3] J. Saalaoui, F. Lardet-Vieudrin, E. Rubiola, F. Vernotte, S. Galliou, and V. Giordano. Métrologie temps-fréquence appliquée au transfert de temps (intercomparaison d horloges) pour l élaboration de l echelle locale. In The Metrology Meeting, Rabat, Maroc, Juin [II-4] J. Saalaoui, M. Addouche, F. Lardet-Vieudrin, V. Giordano, E. Rubiola, and F. Vernotte. Frequency-locked between a H-Maser and Cs clock. In IEEE International Ultrasonics Ferroelectrics and Frequency Control joint conference, Montréal, Canada, Août [II-5] F. Vernotte, J. Delporte, and M. Brunet. The three cornered hat method: an attempt to identify some clock correlations. In IEEE International Ultrasonics Ferroelectrics and Frequency Control joint conference, Montréal, Canada, Août [II-6] P. M. Mbaye, P. E. Lefevre, C. Plantard, F. Vernotte, and E. Rubiola. Composite clock including a Cs clock, a H-Maser and a VCO. In 21st European Frequency and Time Forum, Genève, Suisse, Mai [II-7] C. Plantard, P.M. Mbaye, and F. Vernotte. Composite clock including a Cs clock, a H-maser clock and a VCO: High performance of DMTD system. In 22st European Frequency and Time Forum, Toulouse, France, Avril [II-8] P.M. Mbaye, C. Plantard and F. Vernotte. Composite clock including a Cs clock, a H-maser clock and a VCO: New algorithm of servoing a VCO to a H-maser and a Cs clocks. In 22st European Frequency and Time Forum, Toulouse, France, Avril