Transiting planets as a precision clock to constrain the time variation of the gravitational constant

Masuda, Kento; Suto, Yasushi

doi:10.1093/pasj/psw017

Cited by 34 publications

(10 citation statements)

References 25 publications

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“…Similarly, the Messenger probe (Genova et al 2018) has used the ephemeris of Mercury to find | Ġ|/G < 4 × 10 −14 yr −1 over the past seven years. Other local (in both time and space) constraints have been derived from other planetary motions (Hellings et al 1983), exoplanetary motions (Masuda & Suto 2016), and pulsar binaries (Damour & Taylor 1991;Zhu et al 2019), among others.…”

Section: Introductionmentioning

confidence: 99%

Asteroseismic Constraints on the Cosmic-time Variation of the Gravitational Constant from an Ancient Main-sequence Star

Bellinger

Christensen‐Dalsgaard

2019

ApJL

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We investigate the variation of the gravitational constant G over the history of the Universe by modeling the effects on the evolution and asteroseismology of the low-mass star KIC 7970740, which is one of the oldest (∼ 11 Gyr) and best-observed solar-like oscillators in the Galaxy. From these data we findĠ/G = (1.2 ± 2.6) × 10 −12 yr −1 , that is, no evidence for any variation in G. We also find a Bayesian asteroseismic estimate of the age of the Universe as well as astrophysical S-factors for five nuclear reactions obtained through a 12-dimensional stellar evolution Markov chain Monte Carlo simulation.

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Section: Introductionmentioning

confidence: 99%

Asteroseismic Constraints on the Cosmic-time Variation of the Gravitational Constant from an Ancient Main-sequence Star

Bellinger

Christensen‐Dalsgaard

2019

ApJL

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“…The supernova data shows the variance is less than Ġ/G < 10 −10 yr −1 in 9 Gyr [14]. The analysis of transit times in exoplanetary systems gives a constraint [15] Ġ/G < 10 −6 yr −1 . The best current measurement is | Ġ/G| are < 10 −13 yr −1 , which is based on two years data from MRO spacecraft [16].…”

Section: Introductionmentioning

confidence: 92%

Variance of Newtonian constant from local gravitational acceleration measurements

Dai

2021

Preprint

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We use IGETS absolute gravitational acceleration measurement data to study the gravitational acceleration variance. The relative variance of δg/g in 22 years is less than 4 × 10 −8 . Since δG/G δg/g, this implies the relative variance of Newtonian constant is less than 3 × 10 −9 based on an sinelike oscillation hypothesis. This limit is at least 4 orders of magnitude better than the existing G measurements. The scattered values of reported G measurements coming from different experiments are most probably coming from systematic errors associated with these experiments and not due to intrinsic time variation of G. We also find that Ġ/G < 5.61 × 10 −10 yr −1 based on a linear hypothesis. This is the best terrestrial result so far.

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“…Local (in time and space) constraints were obtained from data for double pulsars (Zhu et al 2019), for exoplanets (Masuda & Suto 2016), and on primary nucleosynthesis (Alvey et al 2020). The range of opportunities for the experimental evaluation of theories gradually expands, and the answer to this question is currently sought through physical and astronomical experiments.…”

Section: Introductionmentioning

confidence: 99%

Estimates of the change rate of solar mass and gravitational constant based on the dynamics of the Solar System

Pitjeva

Pitjev

Pavlov

et al. 2021

A&A

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The estimate of the change rate of the solar gravitational parameter d(GM⊙)∕dt is obtained from processing modern positional observations of planets and spacecraft. Observations were processed and parameters were determined basing on the numerical planetary ephemeris EPM2019. The obtained annual decrease in solar mass M⊙ accounts for the loss through radiation Ṁ⊙rad, through the outgoing solar wind Ṁ⊙wind, and for the material falling on the Sun Ṁ⊙fall. The estimated relative value is within −13.4×10−14 < (Ṁ⊙/Ṁ⊙)rad+wind+fall < −8.7×10−14 per year. The following range for the change rate of the gravitational constant G was obtained: −2.9 × 10−14 < Ġ∕G < + 4.6 × 10−14 per year (3σ). The new result reduces the interval for the change in G and narrows the limits of possible deviations for alternative gravitational theories from general relativity.

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Transiting planets as a precision clock to constrain the time variation of the gravitational constant

Cited by 34 publications

References 25 publications

Asteroseismic Constraints on the Cosmic-time Variation of the Gravitational Constant from an Ancient Main-sequence Star

Asteroseismic Constraints on the Cosmic-time Variation of the Gravitational Constant from an Ancient Main-sequence Star

Variance of Newtonian constant from local gravitational acceleration measurements

Estimates of the change rate of solar mass and gravitational constant based on the dynamics of the Solar System

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