Earth rotation and time-domain reconstruction of polarization states for continuous gravitational waves from a known pulsar
arXiv:2202.00171 · doi:10.1103/PhysRevD.106.024051
Abstract
We consider effects of the Earth rotation on antenna patterns of a ground-based gravitational wave (GW) detector in a general metric theory that allows at most six polarization states (two spin-0, two spin-1 and two spin-2) in a four-dimensional spacetime. By defining the cyclically averaged antenna matrix for continuous GWs from a known pulsar, we show that waveforms for each polarization state can be uniquely reconstructed in time domain from a given set of the strain outputs at a single detector. Constraining the propagation speed of extra polarization modes, if they coexist with the transverse-traceless modes, is also discussed. We examine also possible effects due to the length-of-day modulation as well as a secular change in the pulsar spin period.
10 pages, 5 figures, non-sinusoidal waveforms added, Earth and pulsar spin modulations discussed, pulsar glitch mentioned, computational cost estimated, accepted for PRD
References in corpus (17)
- The Confrontation between General Relativity and Experiment
- Multi-messenger Observations of a Binary Neutron Star Merger
- Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
- GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
- Strong-field Gravity Tests with the Double Pulsar
- Probing non-tensorial polarizations of stochastic gravitational-wave backgrounds with ground-based laser interferometers
- Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run
- Detecting Beyond-Einstein Polarizations of Continuous Gravitational Waves
- Narrowband searches for continuous and long-duration transient gravitational waves from known pulsars in the LIGO-Virgo third observing run
- All-sky search in early O3 LIGO data for continuous gravitational-wave signals from unknown neutron stars in binary systems
- All-sky Search for Continuous Gravitational Waves from Isolated Neutron Stars in the Early O3 LIGO Data
- First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data
- Search for continuous gravitational waves from 20 accreting millisecond X-ray pulsars in O3 LIGO data
- Search of the Early O3 LIGO Data for Continuous Gravitational Waves from the Cassiopeia A and Vela Jr. Supernova Remnants
- The search for continuous gravitational waves from small-ellipticity sources at low frequencies
- Condition for directly testing scalar modes of gravitational waves by four detectors
- Constraints on r-modes and mountains on millisecond neutron stars in binary systems