Can Einstein (rings) surf Gravitational Waves?
arXiv:2302.10472 · doi:10.21105/astro.2302.10472
Abstract
How does the appearance of a strongly lensed system change if a gravitational wave is produced by the lens? In this work we address this question by considering a supermassive black hole binary at the center of the lens emitting gravitational waves propagating either colinearly or orthogonally to the line of sight. Specializing to an Einstein ring configuration (where the source, the lens and the observer are aligned), we show that the gravitational wave induces changes on the ring's angular size and on the optical path of photons. The changes are the same for a given pair of antipodal points on the ring, but maximally different for any pair separated by . For realistic lenses and binaries, we find that the change in the angular size of the Einstein ring is dozens of orders of magnitude smaller than the precision of current experiments. On the other hand, the difference in the optical path induced on a photon by a gravitational wave propagating \textit{orthogonally} to the line of sight triggers, at peak strain, time delays in the range seconds, making the chance of their detection (and thus the use of Einstein rings as gravitational wave detectors) less hopeless.
arXiv commentv2. Version accepted for publication in the Open Journal of Astrophysics. 8 pages, four figures. Comments are welcome!
References in corpus (28)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
- The international pulsar timing array project: using pulsars as a gravitational wave detector
- H0LiCOW V. New COSMOGRAIL time delays of HE0435-1223: to 3.8% precision from strong lensing in a flat CDM model
- Gravitational Lensing
- Two accurate time-delay distances from strong lensing: Implications for cosmology
- The International Pulsar Timing Array: Second data release
- European Pulsar Timing Array Limits on Continuous Gravitational Waves from Individual Supermassive Black Hole Binaries
- Strongly lensed repeating Fast Radio Bursts as precision probes of the universe
- COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses IX. Time delays, lens dynamics and baryonic fraction in HE 0435-1223
- COSMOGRAIL XVI: Time delays for the quadruply imaged quasar DES J0408-5354 with high-cadence photometric monitoring
- The Pantheon+ Analysis: Improving the Redshifts and Peculiar Velocities of Type Ia Supernovae Used in Cosmological Analyses
- Strong lensing of gravitational waves as seen by LISA
- Searching for continuous Gravitational Waves in the second data release of the International Pulsar Timing Array
- COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses XV. Assessing the achievability and precision of time-delay measurements
- Gravitational lensing of gravitational waves: wave nature and prospects for detection
- Light deflection by gravitational waves from localized sources
- Constraints on Individual Supermassive Black Hole Binaries from Pulsar Timing Array Limits on Continuous Gravitational Waves
- Prospects of strongly lensed repeating fast radio bursts: complementary constraints on dark energy evolution
- Effects of Gravitational Lensing and Companion Motion on the Binary Pulsar Timing
- Gravitational Lens Time Delays and Gravitational Waves
- Searching for Gravitational Waves with Strongly Lensed Repeating Fast Radio Bursts
- Astro2020 science white paper: The gravitational wave view of massive black holes
- Principles of Gravitational-Wave Detection with Pulsar Timing Arrays
- Multiple imaging by gravitational waves
- Unveiling Gargantua: A new search strategy for the most massive central cluster black holes
- Detection of extremely low frequency gravitational wave using gravitational lens
- Imprint of primordial gravitational wave with extremely low frequency on gravitational lens system