9
IRUS TotalDownloads
Altmetric
All-sky analysis of astrochronometric signals induced by gravitational waves
File | Description | Size | Format | |
---|---|---|---|---|
2201.03903v1.pdf | Accepted version | 1.26 MB | Adobe PDF | View/Open |
Title: | All-sky analysis of astrochronometric signals induced by gravitational waves |
Authors: | Golat, S Contaldi, CR |
Item Type: | Journal Article |
Abstract: | We introduce a unified spin-weighted formalism to describe both timing and astrometric perturbations induced on astrophysical point sources by gravitational waves using a complex spin field on the sphere. This allows the use of spin-weighted spherical harmonics to analyze “astrochronometric” observables. This approach simplifies the interpretation and simulation of anisotropies induced in the observables by gravitational waves. It also allows a simplified derivation of angular cross-spectra of the observables and their relationship with generalized Hellings-Downs correlation functions. The spin-weighted formalism also allows an explicit connection between correlation components and the spin of gravitational wave polarizations and any presence of chirality. We also calculate expected signal-to-noise ratios for observables to compare the utility of timing and deflection observables. |
Issue Date: | 1-Mar-2022 |
Date of Acceptance: | 6-Feb-2022 |
URI: | http://hdl.handle.net/10044/1/95290 |
DOI: | 10.1103/physrevd.105.063502 |
ISSN: | 2470-0010 |
Publisher: | American Physical Society (APS) |
Start Page: | 1 |
End Page: | 15 |
Journal / Book Title: | Physical Review D |
Volume: | 105 |
Issue: | 6 |
Copyright Statement: | © 2022 American Physical Society |
Sponsor/Funder: | Science and Technology Facilities Council (STFC) |
Funder's Grant Number: | ST/T000791/1 |
Keywords: | gr-qc gr-qc astro-ph.CO |
Publication Status: | Published |
Article Number: | 063502 |
Online Publication Date: | 2022-03-01 |
Appears in Collections: | Physics Theoretical Physics Faculty of Natural Sciences |