skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Multimessenger time delays from lensed gravitational waves

Publication Date:
Sponsoring Org.:
OSTI Identifier:
Grant/Contract Number:
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 95; Journal Issue: 6; Related Information: CHORUS Timestamp: 2017-03-13 22:13:35; Journal ID: ISSN 2470-0010
American Physical Society
Country of Publication:
United States

Citation Formats

Baker, Tessa, and Trodden, Mark. Multimessenger time delays from lensed gravitational waves. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.95.063512.
Baker, Tessa, & Trodden, Mark. Multimessenger time delays from lensed gravitational waves. United States. doi:10.1103/PhysRevD.95.063512.
Baker, Tessa, and Trodden, Mark. Mon . "Multimessenger time delays from lensed gravitational waves". United States. doi:10.1103/PhysRevD.95.063512.
title = {Multimessenger time delays from lensed gravitational waves},
author = {Baker, Tessa and Trodden, Mark},
abstractNote = {},
doi = {10.1103/PhysRevD.95.063512},
journal = {Physical Review D},
number = 6,
volume = 95,
place = {United States},
year = {Mon Mar 13 00:00:00 EDT 2017},
month = {Mon Mar 13 00:00:00 EDT 2017}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevD.95.063512

Citation Metrics:
Cited by: 3works
Citation information provided by
Web of Science

Save / Share:
  • Using Fermat's principle, we analyze the effects of very long wavelength gravitational waves upon the images of a gravitationally lensed quasar. We show that the lens equation in the presence of gravity waves is equivalent to that of a lens with a different alignment between source, deflector, and observer in the absence of gravity waves. Contrary to a recent claim, we conclude that measurements of time delays in gravitational lenses cannot serve as a method to detect or constrain a stochastic background of gravitational waves of cosmological wavelengths, because the wave-induced time delay is observationally indistinguishable from an intrinsic timemore » delay due to the lens geometry.« less
  • Cited by 14
  • With a fantastic sensitivity improving significantly over the advanced GW detectors, Einstein Telescope (ET) will be able to observe hundreds of thousand inspiralling double compact objects per year. By virtue of gravitational lensing effect, intrinsically unobservable faint sources can be observed by ET due to the magnification by intervening galaxies. We explore the possibility of observing such faint sources amplified by strong gravitational lensing. Following our previous work, we use the merger rates of DCO (NS-NS,BH-NS,BH-BH systems) as calculated by Dominik et al.(2013). It turns out that tens to hundreds of such (lensed) extra events will be registered by ET.more » This will strongly broaden the ET's distance reach for signals from such coalescences to the redshift range z = 2 − 8. However, with respect to the full inspiral event catalog this magnification bias is at the level of 0.001 and should not affect much cosmological inferences.« less
  • The majority of fast millisecond pulsars are in binary systems, so that any periodic signal they emit is modulated by both Doppler and relativistic effects. Here we show how well-established binary models can be used to account for these effects in searches for gravitational waves from known pulsars within binary systems. A separate issue affecting certain pulsar signals is that of timing noise, and we show how this, with particular reference to the Crabpulsar, can be compensated for by using regularly updated timing ephemerides.
  • We analyze the effects of large-scale inhomogeneities upon the observables of a gravitational lens system, focusing on the issue of whether large-scale structure imperils the program to determine the Hubble parameter through measurements of time delays between multiple images in lens systems. We find that the lens equation in a spatially flat Robertson-Walker cosmology with scalar metric fluctuations is equivalent, to the leading order of approximation, to that for the same lensing system in the absence of fluctuations but with a different angular position of the source relative to the lens axis. Since the absolute position of the source ismore » not observable, gravitational lens measurements cannot directly reveal the presence of large-scale structure. Large-scale perturbations do not modify the functional relationship between observable lens parameters and the Hubble parameter and therefore do not seriously affect the determination of {ital H}{sub 0} from lens time delays. {copyright} {ital 1996 The American Astronomical Society.}« less