A few remarks about the Pioneer anomaly

TL;DR

This paper discusses features of the Pioneer anomaly, proposing a model where the anomaly results from deceleration in a graviton background, suggesting a new parameter for the acceleration related to probe velocity orientation.

Contribution

It introduces a novel explanation of the Pioneer anomaly as a deceleration caused by a graviton background, emphasizing the importance of velocity angle over distance.

Findings

The anomalous acceleration depends on the cosine of the angle between probe velocity and position vector.

The model suggests the best parameter for the anomaly is not distance but velocity angle.

The explanation aligns with observed features of the Pioneer anomaly.

Abstract

Some features of the Pioneer anomaly are discussed in context of author's explanation of this effect as a deceleration of the probes in the graviton background. It is noted that if the model is true then the best parameter of the anomalous acceleration should be not the distance to the Sun but a cosine of the angle between a velocity of the probe and its radius-vector.