Journal
PHYSICAL REVIEW D
Volume 103, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.103.083506
Keywords
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Funding
- NASA ATP [NNH17ZDA001N]
- Center for Particle Cosmology
- NWO
- Dutch Ministry of Education, Culture and Science (OCW) (NWO VIDI) [2019/ENW/00678104]
- STFC [ST/P00055X/1]
- ASI [2016-24-H.0]
- Dutch Ministry of Education, Culture and Science (OCW) (D-ITP consortium)
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In models of dynamical dark energy and gravity beyond the standard cosmological scenario, estimates of luminosity distance from electromagnetic and gravitational wave sources differ, leaving a unique imprint on the angular power-spectrum of fluctuations. By exploiting the synergy in supernovae and gravitational wave distance measurements, a joint estimator has been constructed to directly probe dark energy fluctuations, providing conclusive evidence for their existence. Additionally, this measurement can also allow for probing the running of the Planck mass, with experimental requirements discussed for detecting these signals.
Luminosity distance estimates from electromagnetic and gravitational wave sources are generally different in models of dynamical dark energy and gravity beyond the standard cosmological scenario. We show that this leaves a unique imprint on the angular power-spectrum of fluctuations of the luminosity distance of gravitational-wave observations which tracks inhomogeneities in the dark energy field. Exploiting the synergy in supernovae and gravitational wave distance measurements, we build a joint estimator that directly probes dark energy fluctuations, providing a conclusive evidence for their existence in case of detection. Moreover, such measurement would also allow to probe the running of the Planck mass. We discuss experimental requirements to detect these signals.
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