26th Capra Meeting on Radiation Reaction in General Relativity

Session

Wednesday Morning

5 Jul 2023, 09:00

Chr. Hansen Auditorium (Niels Bohr Institute)

Conveners

Wednesday Morning: Talks

• Sam Dolan

Wednesday Morning: Talks

• Sam Dolan

74. Enhancing the SEOBNRv5 effective-one-body waveform model with second-order gravitational self-force fluxes

Lorenzo Pompili (Max Planck Institute for Gravitational Physics (AEI Potsdam))

05/07/2023, 09:00

We leverage recent breakthrough calculations using second-order gravitational self-force (2GSF) theory to improve both the gravitational-mode amplitudes and radiation-reaction force in effective-one-body~(EOB) waveform models. We achieve this by introducing new calibration parameters in the SEOBNRv5HM mode amplitudes, and matching them to the newly available 2GSF energy-flux multipolar data...

39. Comparing effective-one-body and gravitational self-force results for black hole binaries with a spinning secondary

Angelica Albertini (Astronomical Institute of the Czech Academy of Sciences)

05/07/2023, 09:20

Building on previous work comparing effective-one-body (EOB) and gravitational self-force (GSF) waveforms for nonspinning black hole binaries on quasi-circular equatorial orbits, I will present an extension of this comparison to binaries with a spinning secondary. In particular, the comparison involves binaries with mass ratios ranging from 1:15 to 1:50000, and dimensionless spin on the...

73. EMRI accuracy requirements: How important are the post-adiabatic components of the self-force for parameter estimation?

Ollie Burke (Laboratoire des 2 Infinis (L2IT))

05/07/2023, 09:40

It is commonly stated within the self force (SF) community that, in order to not significantly bias results, we require accurate tracking of the phase to within 1 radian. However, although frequently stated, this criterion is yet to be tested through a general Bayesian analysis. Armed with complete first order post-adiabatic (1PA) circular-Schwarzschild EMRI waveforms, we discuss the impact of...

86. Assessing the importance of first post-adiabatic terms for LISA data analysis of EMRIs and IMRIs

Gabriel Andres Piovano (University College Dublin)

05/07/2023, 10:00

Extreme mass ratio inspirals (EMRIs) and Intermediate mass ratio inspirals (IMRis) are prime targets for future space-borne interferometers like LISA. It is well-known that waveforms suitable for LISA data analysis must be accurate up to first-order post-adiabatic (1PA) corrections for both sources. But is it always the case? In this talk, we will try to answer this question by presenting the...

45. Can we predict Self-Force from Numerical Relativity?

Leanne Durkan (University of Texas at Austin)

05/07/2023, 11:00

It has long been stated that in order to perform precision tests of general relativity (GR) by comparing gravitational wave (GW) models from black hole perturbation theory with observations, one must calculate the phase to the next-to-leading order in the small mass ratio (SMR) expansion. The extent to which this statement is true however needs to be tested. That is, how far can the SMR...

79. Intertwining numerical relativity, perturbation theory and gravitational self-force

Tousif Islam (University of Massachusetts Dartmouth)

05/07/2023, 11:20

We present a systematic comparison between gravitational waveforms emitted by quasi-circular non-spinning binary black holes in both comparable and large mass ratio regimes, generated with two different classes of waveform models: (i) second-order gravitational self-force (GSF) theory and (ii) numerical relativity (NR) informed point particle black hole perturbation theory (ppBHPT) waveforms...