Status | Confirmed |
Seminar Series | APC-TH |
Subjects | hep-th |
Date | Tuesday 11 July 2017 |
Time | 14:00 |
Institute | APC |
Seminar Room | 483 A - Malevitch |
Speaker's Last Name | Marchand |
Speaker's First Name | Tanguy |
Speaker's Email Address | |
Speaker's Institution | APC, Université Paris Diderot |
Title | Post-Newtonian order gravitational radiation |
Abstract | Post-Newtonian theory enables us to predict the waveform of the gravitational waves emitted by a system of two compact objects coalescing in its inspiral phase. State-of-the-art works provide the phase of the expected signal up to 3.5PN (i.e. up to 1/c^7). Comparison with numerical relativity, as well as the promising evolution of gravitational wave detectors incite us to pursue this computation to a higher order. In our current attempt, we are reaching the phase of the signal at the 4.5PN order (i.e. 1/c^9). For this purpose, the flux emitted by such a system has to be known at 4.5PN. I will describe the so-called Blanchet-Damour-Iyer formalism that we're using, and show how it combines near-zone and far-zone results. I will focus on the 4.5PN coefficient in the flux for circular orbits due to specific non-local terms -called tails- that was computed recently [1]. [1] Marchand T., Blanchet L., Faye G. Class.Quant.Grav. 33 (2016) no.24, 244003 |
arXiv Preprint Number | |
Comments | |
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