Strong gravitational lensing of gravitational waves from double compact binaries—perspectives for the Einstein Telescope

ABSTRACT The cross-correlation of gravitational wave strain with upcoming galaxy surveys probes theories of gravity in a new way. This method enables testing the theory of gravity by combining the effects from both gravitational lensing of gravitational waves and the propagation of gravitational waves in space–time. We find that within 10 yr the combination of the Advanced LIGO (Laser Interferometer Gravitational-Wave Observatory) and VIRGO (Virgo interferometer) detector networks with planned galaxy surveys should detect weak gravitational lensing of gravitational waves in the low-redshift Universe (z < 0.5). With the next-generation gravitational wave experiments such as Voyager, LISA (Laser Interferometer Space Antenna), Cosmic Explorer, and the Einstein Telescope, we can extend this test of the theory of gravity to larger redshifts by exploiting the synergies between electromagnetic wave and gravitational wave probes.

Download Full-text

A NEW METHOD TO CALCULATE THE STOCHASTIC BACKGROUND OF GRAVITATIONAL WAVES GENERATED BY COMPACT BINARIES

Modern Physics Letters A ◽

10.1142/s0217732313501745 ◽

2013 ◽

Vol 28 (38) ◽

pp. 1350174 ◽

Cited By ~ 4

Author(s):

EDGARD F. D. EVANGELISTA ◽

JOSÉ C. N. DE ARAUJO

Keyword(s):

Gravitational Waves ◽

Binary Systems ◽

New Method ◽

Orbital Parameters ◽

Compact Binaries ◽

Compact Binary ◽

Stochastic Background ◽

Einstein Telescope ◽

Interferometric Detectors ◽

Near Future

In the study of gravitational waves (GWs), the stochastic background generated by compact binary systems are among the most important kinds of signals. The reason for such an importance has to do with their probable detection by the interferometric detectors [such as the Advanced LIGO (ALIGO) and Einstein Telescope (ET)] in the near future. In this paper we are concerned with, in particular, the stochastic background of GWs generated by double neutron star (DNS) systems in circular orbits during their periodic and quasi-periodic phases. Our aim here is to describe a new method to calculate such spectra, which is based on an analogy with a problem of Statistical Mechanics. Besides, an important characteristic of our method is to consider the time evolution of the orbital parameters.

Download Full-text

Strongly lensed gravitational waves from intrinsically faint double compact binaries—prediction for the Einstein Telescope

Journal of Cosmology and Astroparticle Physics ◽

10.1088/1475-7516/2015/12/006 ◽

2015 ◽

Vol 2015 (12) ◽

pp. 006-006 ◽

Cited By ~ 24

Author(s):

Xuheng Ding ◽

Marek Biesiada ◽

Zong-Hong Zhu

Keyword(s):

Gravitational Waves ◽

Compact Binaries ◽

Einstein Telescope

Download Full-text

Phase effects from strong gravitational lensing of gravitational waves

Physical Review D ◽

10.1103/physrevd.103.064047 ◽

2021 ◽

Vol 103 (6) ◽

Cited By ~ 1

Author(s):

Jose María Ezquiaga ◽

Daniel E. Holz ◽

Wayne Hu ◽

Macarena Lagos ◽

Robert M. Wald

Keyword(s):

Gravitational Waves ◽

Gravitational Lensing ◽

Strong Gravitational Lensing

Download Full-text

Gravitational Lensing of Continuous Gravitational Waves

Universe ◽

10.3390/universe7120502 ◽

2021 ◽

Vol 7 (12) ◽

pp. 502

Author(s):

Marek Biesiada ◽

Sreekanth Harikumar

Keyword(s):

Gravitational Waves ◽

Gravitational Lensing ◽

Globular Clusters ◽

Monochromatic Light ◽

Cosmological Parameters ◽

Wave Nature ◽

Einstein Telescope ◽

Wave Effects ◽

Interesting Idea ◽

Alternative Techniques

Continuous gravitational waves are analogous to monochromatic light and could therefore be used to detect wave effects such as interference or diffraction. This would be possible with strongly lensed gravitational waves. This article reviews and summarises the theory of gravitational lensing in the context of gravitational waves in two different regimes: geometric optics and wave optics, for two widely used lens models such as the point mass lens and the Singular Isothermal Sphere (SIS). Observable effects due to the wave nature of gravitational waves are discussed. As a consequence of interference, GWs produce beat patterns which might be observable with next generation detectors such as the ground based Einstein Telescope and Cosmic Explorer, or the space-borne LISA and DECIGO. This will provide us with an opportunity to estimate the properties of the lensing system and other cosmological parameters with alternative techniques. Diffractive microlensing could become a valuable method of searching for intermediate mass black holes formed in the centres of globular clusters. We also point to an interesting idea of detecting the Poisson–Arago spot proposed in the literature.

Download Full-text