Séminaires LAPP

Gravity Probe B Relativity Mission: Instrument, Flight, and Data Analysis

Name: Gravity Probe B Relativity Mission: Instrument, Flight, and Data Analysis
Start: 2008-10-03T11:00:00+02:00
End: 2008-10-03T12:00:00+02:00
Location: LAPP

par Dr Michael Heifetz (Stanford University, USA)

vendredi 3 oct. 2008, 11:00 → 12:00 Europe/Paris

Auditorium (LAPP)

Auditorium

LAPP

Annecy-le-Vieux

Description

GP-B co-founder, Bill Fairbank, once remarked: “You can’t imagine a simpler experiment than GP-B… It’s just a star, a telescope, and a spinning sphere”. The distant star provides a reference for measuring the geodetic and frame dragging effects on gyroscope spin axis. The telescope makes it possible to monitor the gyro spin axis orientation, relative to the guide star. Simple in concept… However, these geodetic and frame-dragging effects are miniscule around the Earth, and it took over four decades to create the ultra-precise technologies needed to carry this experiment. We will discuss the concept and structure of the GP-B science instrument, spacecraft, flight experience and the post-flight science data analysis that still continues. ***** UNUSUAL TIME : 11 am ****

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Gravity Probe B Relativity Mission: Instrument, Flight, and Data Analysis

par Dr Michael Heifetz (Stanford University, USA)

Auditorium

LAPP