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Communication Dans Un Congrès IVS 2012 General Meeting Proceedings Année : 2012

A Search for the Free Inner Core Nutation in VLBI Data

Résumé

We investigate the time-frequency spectrum of VLBI nutation series, including operational series released by IVS analysis centers. We focus on the interannual prograde band, where the signal as- sociated with the free inner core nutation (FICN) should be searched. We do not conclude on the detection of the FICN. However, we point out some signi cant but unexplained structures within the FICN frequency band. We also investigate whether their origin is geophysical or they are artifacts due to VLBI analysis methods or reference frame effects.
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Dates et versions

hal-00822454 , version 1 (14-05-2013)

Identifiants

  • HAL Id : hal-00822454 , version 1

Citer

Sébastien Lambert, Séverine Rosat, Xiaoming Cui, Yves Rogister, Christian Bizouard. A Search for the Free Inner Core Nutation in VLBI Data. 7th IVS General Meeting, Mar 2012, Madrid, Spain. pp.370-374. ⟨hal-00822454⟩
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