Persistent Astrometric Deflections from Gravitational-Wave Memory
arXiv:2007.12206 · doi:10.1103/PhysRevLett.125.041101
Abstract
Gravitational waves (GWs) produce small distortions in the observable distribution of stars in the sky. We describe the characteristic pattern of astrometric deflections created by a specific gravitational waveform called a burst with memory. Memory is a permanent, residual distortion of space left in the wake of GWs. We demonstrate that the astrometric effects of GW memory are qualitatively distinct from those of more broadly considered, oscillatory GWs---distinct in ways with potentially far-reaching observational implications. We discuss some such implications pertaining to the random-walk development of memory-induced deflection signatures over cosmological time spans and how those may influence observations of the cosmic microwave background.
5 pages. 3 figures. Published in Physical Review Letters on 23 July 2020
References in corpus (23)
- Gaia Data Release 2. Summary of the contents and survey properties
- First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
- Soft Hair on Black Holes
- BICEP2 / Keck Array x: Constraints on Primordial Gravitational Waves using Planck, WMAP, and New BICEP2/Keck Observations through the 2015 Season
- Superrotation Charge and Supertranslation Hair on Black Holes
- Conserved charges of the extended Bondi-Metzner-Sachs algebra
- The gravitational-wave memory effect
- Detecting gravitational-wave memory with LIGO: implications of GW150914
- Astrometric Effects of a Stochastic Gravitational Wave Background
- Nonlinear gravitational-wave memory from binary black hole mergers
- An astrometric search method for individually resolvable gravitational wave sources with Gaia
- Gravitational-wave memory and pulsar timing arrays
- Searching for gravitational wave memory bursts with the Parkes Pulsar Timing Array
- BMS Supertranslations and Memory in Four and Higher Dimensions
- Thanks for the memory: measuring gravitational-wave memory in the first LIGO/Virgo gravitational-wave transient catalog
- Gravitational Radiation and Very Long Baseline Interferometry
- Astrometric and Timing Effects of Gravitational Waves from Localized Sources
- Bending of Light by Gravity Waves
- Gravitational-wave memory: waveforms and phenomenology
- Assessing Pulsar Timing Array Sensitivity to Gravitational Wave Bursts with Memory
- The NANOGrav 11-Year Data Set: Limits on Gravitational Wave Memory
- Astrometric Limits on the Stochastic Gravitational Wave Background
- Pulsar Timing Perturbations from Galactic Gravitational Wave Bursts with Memory
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- Gravitational memory effects and Bondi-Metzner-Sachs symmetries in scalar-tensor theories
- Gravitational memory effects in Chern-Simons modified gravity
- Conserved charges in Chern-Simons modified theory and memory effects
- Gravitational memory effects and higher derivative actions
- Gravitational memory effects in Brans-Dicke theory
- Gravitational memory: new results from post-Newtonian and self-force theory
- Memory of a Random Walk: Astrometric deflections from gravitational wave memory accumulation over cosmological scales
- Gravitational wave memory and its effects on particles and fields
- Note on electromagnetic memories
- Framework for describing perturbations to the cosmic microwave background from a gravitational wave burst with memory
- Gravitational Wave Memory Imprints on the CMB from Populations of Massive Black Hole Mergers
- Time-dependent deflection reconstruction: new technique to search for gravitational waves with the cosmic microwave background