University of Tasmania
Browse
Siellez - Search for Tensor.pdf (341.75 kB)

Search for tensor, vector, and scalar polarizations in the stochastic gravitational-wave background

Download (341.75 kB)
journal contribution
posted on 2023-05-21, 11:12 authored by Abbott, BP, Abbott, R, Karelle SiellezKarelle Siellez, Zweizig, J
The detection of gravitational waves with Advanced LIGO and Advanced Virgo has enabled novel tests of general relativity, including direct study of the polarization of gravitational waves. While general relativity allows for only two tensor gravitational-wave polarizations, general metric theories can additionally predict two vector and two scalar polarizations. The polarization of gravitational waves is encoded in the spectral shape of the stochastic gravitational-wave background, formed by the superposition of cosmological and individually unresolved astrophysical sources. Using data recorded by Advanced LIGO during its first observing run, we search for a stochastic background of generically polarized gravitational waves. We find no evidence for a background of any polarization, and place the first direct bounds on the contributions of vector and scalar polarizations to the stochastic background.

History

Publication title

Physical Review Letters

Volume

120

Issue

20

Article number

201102

Number

201102

Pagination

1-13

ISSN

0031-9007

Department/School

School of Natural Sciences

Publisher

American Physical Soc

Place of publication

One Physics Ellipse, College Pk, USA, Md, 20740-3844

Rights statement

© 2018 American Physical Society.

Repository Status

  • Open

Socio-economic Objectives

Expanding knowledge in the physical sciences

Usage metrics

    University Of Tasmania

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC