Citation

BibTex format

@article{Mentasti:2025:06/013,
author = {Mentasti, G and Contaldi, C},
doi = {06/013},
journal = {Journal of Cosmology and Astroparticle Physics},
title = {Cosmic shimmering: the gravitational wave signal of time-resolved cosmic shear observations},
url = {http://dx.doi.org/10.1088/1475-7516/2025/06/013},
volume = {2025},
year = {2025}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We introduce a novel approach for detecting gravitational waves through their influence on the shape of resolved astronomical objects. This method, complementary to pulsar timing arrays and astrometric techniques, explores the time-dependent distortions caused by gravitational waves on the shapes of celestial bodies, such as galaxies or any resolved extended object. By developing a formalism based on that adopted in the analysis of weak lensing effects, we derive the response functions for gravitational wave-induced distortions and compute their angular correlation functions. Our results highlight the sensitivity of these distortions to the lowest frequencies of the gravitational wave spectrum and demonstrate how they produce distinct angular correlation signatures, including null and polarisation-sensitive correlations. These findings pave the way for future high-resolution surveys to exploit this novel observable, potentially offering new insights into the stochastic gravitational wave background and cosmological models.
AU  - Mentasti,G
AU  - Contaldi,C
DO  - 06/013
PY  - 2025///
SN  - 1475-7516
TI  - Cosmic shimmering: the gravitational wave signal of time-resolved cosmic shear observations
T2  - Journal of Cosmology and Astroparticle Physics
UR  - http://dx.doi.org/10.1088/1475-7516/2025/06/013
UR  - https://doi.org/10.1088/1475-7516/2025/06/013
VL  - 2025
ER  -
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