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  Constraining Unmodeled Physics with Compact Binary Mergers from GWTC-1

Edelman, B., Rivera-Paleo, F. J., Merritt, J. D., Farr, B., Doctor, Z., Brink, J., et al. (2021). Constraining Unmodeled Physics with Compact Binary Mergers from GWTC-1. Physical Review D, 103(4): 042004. doi:10.1103/PhysRevD.103.042004.

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 Creators:
Edelman, Bruce, Author
Rivera-Paleo, Francisco J., Author
Merritt, J. D., Author
Farr, Ben, Author
Doctor, Zoheyr, Author
Brink, Jeandrew, Author
Farr, Will M., Author
Gair, Jonathan1, Author              
Key, Joey Shapiro, Author
McIver, Jess, Author
Nielsen, Alex B., Author
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: We present a flexible model to describe the effects of generic deviations of observed gravitational wave signals from modeled waveforms in the LIGO and Virgo gravitational wave detectors. With the detection of 11 gravitational wave events from the GWTC-1 catalog, we are able to constrain possible deviations from our modeled waveforms. In this paper we present our coherent spline model that describes the deviations, then choose to validate our model on an example phenomenological and astrophysically motivated departure in waveforms based on extreme spontaneous scalarization. We find that the model is capable of recovering the simulated deviations. By performing model comparisons we observe that the spline model effectively describes the simulated departures better than a normal compact binary coalescence (CBC) model. We analyze the entire GWTC-1 catalog of events with our model and compare it to a normal CBC model, finding that there are no significant departures from the modeled template gravitational waveforms used.

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 Dates: 2020-08-142021
 Publication Status: Published in print
 Pages: 12 pages, 13 figures
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 2008.06436
DOI: 10.1103/PhysRevD.103.042004
 Degree: -

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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 103 (4) Sequence Number: 042004 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: https://pure.mpg.de/cone/journals/resource/111088197762258