# Modelling the Pioneer anomaly as modified inertia

@article{McCulloch2006ModellingTP, title={Modelling the Pioneer anomaly as modified inertia}, author={M. E. McCulloch}, journal={Monthly Notices of the Royal Astronomical Society}, year={2006}, volume={376}, pages={338-342} }

This paper proposes an explanation for the Pioneer anomaly: an unexplained Sunward acceleration of 8.74 ± 1.33 × 10 −10 ms −2 seen in the behaviour of the Pioneer probes. Two hypotheses are made. (1) Inertia is a reaction to Unruh radiation and (2) this reaction is weaker for low accelerations because some wavelengths in the Unruh spectrum do not fit within a limiting scale (twice the Hubble distance) and are disallowed: a process similar to the Casimir effect. When these ideas are used to…

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## References

SHOWING 1-10 OF 30 REFERENCES

### Study of the anomalous acceleration of Pioneer 10 and 11

- Physics
- 2002

Our previous analyses of radio Doppler and ranging data from distant spacecraft in the solar system indicated that an apparent anomalous acceleration is acting on Pioneer 10 and 11, with a magnitude…

### The Pioneer anomaly: seeking an explanation in newly recovered data

- Geology, Physics
- 2006

The Pioneer 10 and 11 spacecraft yielded very accurate navigation in deep space that was, however, limited by a small, anomalous frequency drift of their carrier signals received by the…

### Dynamics with a Nonstandard Inertia-Acceleration Relation: An Alternative to Dark Matter in Galactic Systems

- Physics
- 1993

Abstract We investigate particle dynamics that is governed by a nonstandard kinetic action of a special form. We are guided by a phenomenological scheme-the modified dynamics (MOND)-that imputes the…

### Gravitational solution to the Pioneer 10/11 anomaly

- Physics
- 2006

A fully relativistic modified gravitational theory including a fifth force skew-symmetric field is fitted to the Pioneer 10/11 anomalous acceleration. The theory allows for a variation with distance…

### Relativistic gravitation theory for the MOND paradigm

- Physics
- 2004

The modified newtonian dynamics (MOND) paradigm of Milgrom can boast of a number of successful predictions regarding galactic dynamics; these are made without the assumption that dark matter plays a…

### Modified Newtonian dynamics as an alternative to dark matter

- Physics
- 2002

▪ Abstract Modified Newtonian dynamics (MOND) is an empirically motivated modification of Newtonian gravity or inertia suggested by Milgrom as an alternative to cosmic dark matter. The basic idea is…

### Roche Lobe Sizes in Deep-MOND Gravity

- Physics
- 2005

MOdified Newtonian Dynamics (MOND) is evolving from an empirical to a decent theory respect- ing fundamental physics after Bekenstein (2004) showed that lensing and Hubble expansion can be modeled…

### A modification of the newtonian dynamics as a possible alternative to the hidden mass hypothesis

- Physics
- 1983

The author considers the possibility that there is not, in fact, much hidden mass in galaxies and galaxy systems. If a certain modified version of the Newtonian dynamics is used to describe the…

### Notes on black-hole evaporation

- Physics
- 1976

This paper examines various aspects of black-hole evaporation. A two-dimensional model is investigated where it is shown that using fermion-boson cancellation on the stress-energy tensor reduces the…