Imperial College London
Portrait Picture

Carlo R. Contaldi

Faculty of Natural Sciences, Department of Physics

Professor of Theoretical Physics
 
 
 
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Contact

 

+44 (0)20 7594 1527c.contaldi

 
 
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Location

 

505Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Golat:2022:10.1103/physrevd.105.063502,
author = {Golat, S and Contaldi, CR},
doi = {10.1103/physrevd.105.063502},
journal = {Physical Review D},
pages = {1--15},
title = {All-sky analysis of astrochronometric signals induced by gravitational waves},
url = {http://dx.doi.org/10.1103/physrevd.105.063502},
volume = {105},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - 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.
AU  - Golat,S
AU  - Contaldi,CR
DO  - 10.1103/physrevd.105.063502
EP  - 15
PY  - 2022///
SN  - 2470-0010
SP  - 1
TI  - All-sky analysis of astrochronometric signals induced by gravitational waves
T2  - Physical Review D
UR  - http://dx.doi.org/10.1103/physrevd.105.063502
UR  - https://journals.aps.org/prd/abstract/10.1103/PhysRevD.105.063502
UR  - http://hdl.handle.net/10044/1/95290
VL  - 105
ER  -
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