G.Voisin:Free falling with a pulsar in a triple system
Posted: Tue 26 May 2020 14:37VIA APC Theory seminar by Dr. Guillaume Voisin "Free falling with a pulsar in a triple system" took place on 26.05.2020. It's presentation is attached and the record of his talk is in VIA library
http://viavca.in2p3.fr/guillaume_voisin.html
The movie, illustrating test of the equivalence principle on lunar surface can be found in
https://nssdc.gsfc.nasa.gov/planetary/lunar/apollo_15_feather_drop.html
The following questions and comments were put during the talk and discussion
Philippe: How is Egrav defined?
Deruelle: This is the Laplace effect (1825), used by Nordvedt.
Deruelle: Gauus perturbation theory is not enough ?
Deruelle: ...this was shown by Cartan (1922) in 4D dimension of space time
Bernard: what explains the region where the constraint on alpha is very weak?
Deruelle: Why solve the FULL pb of motion numerically ? Why not start from the well-known 2-body motion at 1PN of the“inner” NS-WD system in, eg, scalar tensor theory, and then add “a la Gauss” the Newtonian contribution of the outer WD ?
You are welcome to continue discussion of this topic in replies to this post!
http://viavca.in2p3.fr/guillaume_voisin.html
The movie, illustrating test of the equivalence principle on lunar surface can be found in
https://nssdc.gsfc.nasa.gov/planetary/lunar/apollo_15_feather_drop.html
The following questions and comments were put during the talk and discussion
Philippe: How is Egrav defined?
Deruelle: This is the Laplace effect (1825), used by Nordvedt.
Deruelle: Gauus perturbation theory is not enough ?
Deruelle: ...this was shown by Cartan (1922) in 4D dimension of space time
Bernard: what explains the region where the constraint on alpha is very weak?
Deruelle: Why solve the FULL pb of motion numerically ? Why not start from the well-known 2-body motion at 1PN of the“inner” NS-WD system in, eg, scalar tensor theory, and then add “a la Gauss” the Newtonian contribution of the outer WD ?
You are welcome to continue discussion of this topic in replies to this post!