What is the reference frame of an accelerated observer?

TL;DR

This paper investigates how noninertial observers in flat spacetime can construct extended reference frames, revealing that such frames can only coincide with inertial frames within a bounded region if the final velocity exceeds 0.6c.

Contribution

It provides a detailed analysis of the construction of reference frames for accelerated observers, especially under high final velocities, extending understanding of noninertial reference frames.

Findings

Reference frames for accelerated observers are limited in extent at high velocities.

Inertial segments before and after acceleration influence the reference frame construction.

Boundaries for frame coincidence depend on the final velocity exceeding 0.6c.

Abstract

The general construction of extended refrence frames for noninertial observers in flat space is studied. It is shown that, if the observer moves inertially before and after an arbitrary acceleration and rotation, the region where reference frames can coincide with an inertial system is bounded for final velocities exceeding 0.6 c.