Sébastien Lambert

SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, LNE
61 avenue de l'Observatoire, 75014 Paris, France
Téléphone : +33 1 40 51 22 33
Messagerie électronique : sebastien.lambert [] obspm.fr

 

Pôle de rotation : position, cycles et variations multidécennales, diminution historique de l'amplitude du cycle de Chandler.
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Elévation causée par les forces centrifuges associées à l'excentricité de l'axe de rotation (mouvement du pôle) et aux variations de la vitesse de rotation.
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Perturbations atmosphériques de la vitesse de rotation de la Terre : action sur les montagnes et sur la surface. Les moments de force positifs (violets) contribuent à ralentir la rotation terrestre et donc à augmenter la longueur du jour.
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Dernières mesures de la longueur du jour à l'Observatoire de Paris, contributions des marées, du noyau liquide et de l'atmosphère.
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Dernières mesures de la nutation libre du noyau liquide par VLBI à l'Observatoire de Paris.
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Adoption de l'ICRF3 comme référence fondamentale par l'Union Astronomique Internationale (août 2018, Charlot et al 2018).
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Test de relativité par VLBI sur un quasar à 1° du soleil (Titov et al 2018).

Inauguration de la station géodésique de Ny Ålesund, 80° nord, Spitzberg, archipel du Svalbard (juin 2018).

El Niño 2015-2016 : un Niño "Central-Pacific" monstrueux qui a ralenti la rotation terrestre par friction sur l'est du Pacifique (Lambert et al 2017).
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Domaines de recherche

Responsabilités

Distinctions

Publications (revues à comité de lecture)

  1. Charlot P, Jacobs CS, Gordon D, Lambert S, Böhm J, de Witt A, Fey AL, Heinkelmann R, Skurikhina E, Titov O, Arias EF, Bolotin S, Bourda G, Ma C, Malkin Z, Nothnagel A, Gaume RA, Mayer D, MacMillan DS 2018, The third realization of the International Celestial Reference Frame by very long baseline interferometry, Astronomy and Astrophysics, en cours de rédaction
  2. Liu N, Lambert S, Zhu Z 2018, On determining the accuracy of VLBI radio source catalogs, Astronomy and Astrophysics, sous presse
  3. Bizouard C, Lambert S, Gattano C, Becker O, Richard JY 2018, The IERS EOP 14C04 solution for Earth orientation parameters consistent with ITRF 2014, Journal of Geodesy, sous presse
  4. Gattano C, Lambert S, Le Bail K 2018, Extragalactic radio source stability and VLBI celestial reference frame: insights from the Allan standard deviation, Astronomy and Astrophysics, 618, 80
  5. Titov O, Girdiuk A, Lambert S, Lovell J, McCallum J, Shabala S, McCallum L, Mayer D, Schartner M, de Witt A, Shu F, Melnikov A, Ivanov D, Mikhailov A, Yi S, Soja B, Xia B, Jiang T 2018, Testing general relativity with geodetic VLBI: what a single, specially designed experiment can teach us, Astronomy and Astrophysics, 618, 8
  6. Gaia Collaboration, Brown AG, Vallenari A, Prusti T et al 2018, Gaia Data Release 2 - Summary of the contents and survey properties, Astronomy and Astrophysics 616, 1
  7. Gaia Collaboration, Babusiaux C, van Leeuwen F, Barstwo MA et al 2018, Gaia Data Release 2 - Observational Hertzsprung-Russell diagrams, Astronomy and Astrophysics 616, 10
  8. Gaia Collaboration, Katz D, Antoja T, Romero-Gómez M et al 2018, Gaia Data Release 2 - Mapping the Milky Way disc kinematics, Astronomy and Astrophysics 616, 11
  9. Gaia Collaboration, Helmi A, van Leeuwen F, McMillan PJ et al 2018, Gaia Data Release 2 - Kinematics of globular clusters and dwarf galaxies around the Milky Way, Astronomy and Astrophysics 616, 12
  10. Gaia Collaboration, Spoto F, Tanga P, Mignard F et al 2018, Gaia Data Release 2 - Observations of solar system objects, Astronomy and Astrophysics 616, 13
  11. Mignard F, Klioner SA, Lindegren L, Herná J, Bastian U, Bombrun A, Hobbs D, Lammers U, Michalik D, Ramos-Lerate M, Biermann M, Ferná J, Geyer R, Hilger T, Siddiqui HI, Steidelmüller H, Babusiaux C, Barache C, Lambert S et al 2018, Gaia Data Release 2 - The celestial reference frame (Gaia-CRF2), Astronomy and Astrophysics 616, 14
  12. Arenou F, Luri X, Babusiaux C, Fabricius C, Helmi A, Muraveva T, Robin AC, Spoto F, Vallenari A, Antoja T, Cantat-Gaudin T, Jordi C, Leclerc N, Reylé C, Romero-Gómez M, Shih IC, Soria S, Barache C, Bossini D, Bragaglia A, Breddels MA, Fabrizio M, Lambert S, Marrese PM, Massari D, Moitinho A, Robichon N, Ruiz-Dern L, Sordo R, Veljanoski J, Eyer L, Jasniewicz G, Pancino E, Soubiran C, Spagna A, Tanga P, Turon C, Zurbach C 2018, Gaia Data Release 2 - Catalogue validation, Astronomy and Astrophysics 616, 17
  13. Lambert S, Marcus SL, de Viron O 2017, Atmospheric torques and Earth's rotation: what drove the millisecond-level length-of-day response to the 2015-16 El Niño? Earth System Dynamics, 8, 1009
  14. Gattano C, Lambert S, Bizouard C 2017, Observation of the Earth's nutation by the VLBI: how accurate is the geophysical signal, Journal of Geodesy 91, 849
  15. Arenou F, Luri X, Babusiaux C, Fabricius C, Helmi A, Robin AC, Vallenari A, Blanco-Cuaresma S, Cantat-Gaudin T, Findeisen K, Reylé C, Ruiz-Dern L, Sordo R, Turon C, Walton NA, Shih IC, Antiche E, Barache C, Barros M, Breddels M, Carrasco JM, Costigan G, Diakité S, Eyer L, Figueras F, Gallucio L, Heu J, Jordi C, Krone-Martins A, Lallement R, Lambert S, Leclerc N, Marrese PM, Moitinho A, Mor R, Romero-Gómez M, Sartoretti P, Soria S, Soubiran C, Souchay J, Veljanoski J, Ziaeepour H, Giuffrida G, Pancino E, Bargaglia A 2017, Gaia Data Release 1 - Catalogue validation, Astronomy and Astrophysics 599, 50
  16. Rosat S, Lambert S, Gattano C, Calvo M 2017, Earth's core and inner core resonances from analysis of VLBI nutation and superconducting gravimeter data, Geophysical Journal International 208, 211
  17. Le Poncin-Lafitte C, Hees A, Lambert S 2016, Lorentz symmetry and very long baseline interferometry, Physical Review D 94, 125030
  18. Fey AL, Gordon D, Jacobs CS, Ma C, Gaume RA, Arias EF, Bianco G, Boboltz DA, Böckmann S, Böhm J, Bolotin S, Charlot P, Collioud A, Engelhardt G, Gipson J, Gontier AM, Heinkelmann R, Kurdubov S, Lambert S, Lytvyn S, MacMillan DS, Malkin Z, Nothnagel A, Ojha R, Skurikhina E, Sokolova J, Souchay J, Sovers OJ, Tesmer V, Titov O, Wang G, Zharov V 2015, The second realization of the International Celestial Reference Frame by very long baseline interferometry, Astronomical Journal 150, 58
  19. Roland J, Britzen S, Kun E, Henri G, Lambert S, Zensus A 2015, Structure of the nucleus of 1928+738, Astronomy and Astrophysics 578, 86
  20. Lambert S 2014, Comparison of VLBI radio source catalogs, Astronomy and Astrophysics 570, 108
  21. Titov O, Lambert S 2013, Improved VLBI measurement of the solar system acceleration, Astronomy and Astrophysics 559, 95
  22. Lambert S 2013, Time stability of the ICRF2 axes, Astronomy and Astrophysics 553, 122
  23. Taris F, Andrei AH, Klotz A, Vachier F, Côte R, Bouquillon S, Souchay J, Lambert S, Anton S, Bourda G, Coward D 2013, Optical monitoring of extragalactic sources for the link between the ICRF and the future Gaia celestial reference frame, Astronomy and Astrophysics 552, 98
  24. Liu JC, Capitaine N, Lambert S, Malkin Z, Zhu Z 2012, Systematic effect of the Galactic aberration on the ICRS realization and the Earth orientation parameters, Astronomy and Astrophysics 548, 50
  25. Karatekin O, de Viron O, Lambert S, Dehant V, Rosenblatt P, Van Hoolst T, Le Maistre S 2011, Atmospheric angular momentum variations of Earth, Mars, and Venus at seasonal time scales, Planetary and Space Science 59, 923
  26. Gambis D, Salstein DA, Lambert S 2011, Use of atmospheric angular momentum forecasts for UT1 predictions: analyses over CONT08, Journal of Geodesy 85, 435
  27. Moór A, Frey S, Lambert S, Titov O, Bakos J 2011, On the connection of the apparent proper motion and the VLBI structure of compact radio sources, Astronomical Journal 141, 178
  28. Titov O, Lambert S, Gontier AM 2011, VLBI measurement of the secular aberration drift, Astronomy and Astrophysics 529, 91
  29. Lambert S, Le Poncin-Lafitte C 2011, Improved determination of γ by VLBI, Astronomy and Astrophysics 529, 70
  30. Bizouard C, Remus F, Lambert S, Seoane L, Gambis D 2011, The Earth's variable Chandler wobble, Astronomy and Astrophysics 526, 106
  31. Taris F, Souchay J, Andrei AH, Bernard M, Salabert M, Bouquillon S, Anton S, Lambert S, Gontier AM, Barache C 2011, Astrophotometric variability of CFHT-LS Deep 2 QSOs, Astronomy and Astrophysics 526, 25
  32. Rosat S, Lambert S 2009, FCN resonance parameters from VLBI and superconducting gravimeter data, Astronomy and Astrophysics 503, 287
  33. Lambert S, Le Poncin-Lafitte C 2009, Determining the relativistic parameter γ using very long baseline interferometry, Astronomy and Astrophysics 499, 331
  34. Souchay J, Andrei AH, Barache C, Bouquillon S, Gontier AM, Lambert S, Le Poncin-Lafitte C, Taris F, Arias EF, Suchet D, Baudin M 2009, The construction of the Large Quasar Astrometric Catalogue (LQAC), Astronomy and Astrophysics 494, 799
  35. Capitaine N, Mathews PM, Dehant V, Wallace PT, Lambert S 2009, On the IAU 2000/2006 precession-nutation and comparison with other models and VLBI observations, Celestial Mechanics and Dynamical Astronomy 103, 179
  36. Mathews PM, Lambert S 2009, Effect of mantle and ocean tides on the Earth's rotation rate, Astronomy and Astrophysics 493, 325
  37. Lambert S, Gontier AM 2009, On radio source selection to define a stable celestial frame, Astronomy and Astrophysics 493, 317
  38. Souchay J, Lambert S, Andrei AH, Bouquillon S, Barache C, Le Poncin-Lafitte C 2008, Astrometric comparisons of quasar catalogues, Astronomy and Astrophysics 485, 299
  39. Lambert S, Mathews PM 2008, Erratum: Second-order torque on the tidal redistribution and the Earth's rotation, Astronomy and Astrophysics 481, 883
  40. Lambert S, Dehant V, Gontier AM 2008, Celestial frame instability in VLBI analysis and its impact on geophysics, Astronomy and Astrophysics 481, 535
  41. Souchay J, Lambert S, Le Poncin-Lafitte C 2007, A comparative study of rigid Earth, non rigid Earth nutation theories and observational data, Astronomy and Astrophysics 472, 681
  42. Folgueira M, Dehant V, Lambert S, Rambaux N 2007, Impact of tidal Poisson terms to non-rigid Earth rotation, Astronomy and Astrophysics 469, 1197
  43. Lambert S, Dehant V 2007, The Earth's core parameters as seen by the VLBI, Astronomy and Astrophysics 469, 777
  44. Le Poncin-Lafitte C, Lambert S 2007, Numerical study of relativistic frequency shift for cold-atom clock experiments in space, Classical and Quantum Gravity 24, 801
  45. Lambert S 2006, Atmospheric excitation of the Earth's free core nutation, Astronomy and Astrophysics 457, 717
  46. Lambert S, Bizouard C, Dehant V 2006, Rapid variations in polar motion during the 2005-2006 winter season, Geophysical Research Letters 33, 13303
  47. Lambert S, Mathews PM 2006, Second-order torque on the tidal redistribution and the Earth's rotation, Astronomy and Astrophysics 453, 363
  48. Lambert S, Capitaine N 2004, Effects of zonal deformations and the Earth's rotation rate variations on precession-nutation, Astronomy and Astrophysics 428, 255
  49. Capitaine N, Chapront J, Lambert S, Wallace PT 2003, Expressions for the Celestial Intermediate Pole and the Celestial Ephemeris Origin consistent with the IAU 2000A precession-nutation model, Astronomy and Astrophysics 400, 1145
  50. Lambert S, Bizouard C 2002, Positioning the Terrestrial Ephemeris Origin in the International Terrestrial Reference Frame, Astronomy and Astrophysics 394, 317
  51. Bizouard C, Lambert S 2002, Lunisolar torque on the atmosphere and Earth's rotation, Planetary and Space Science 50, 323

Actes de conférences

Autres communications