Is the Speed of Light Independent of the Velocity of the Source

  title={Is the Speed of Light Independent of the Velocity of the Source},
  author={Kenneth Brecher},
  journal={Physical Review Letters},
  • K. Brecher
  • Published 24 October 1977
  • Physics
  • Physical Review Letters
Recent observations of regularly pulsating x-ray sources in binary star systems are analyzed in the framework of the "emission" theory of light. Assuming that light emitted by a source moving at velocity $v$ with respect to an observer has a speed ${c}^{\ensuremath{'}}=c+kv$ in the observer's rest frame, we find that the arrival time of pulses from the binary x-ray sources implies $kl2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}9}$. This appears to be the most direct and sensitive… Expand

Tables from this paper

Measurement of Differences and Relativity between Speeds of Light from Various Stars
In order to test the constancy of light speed, we design a system to directly compare the travelling time intervals of several starlights and a terrestrial white light from the transmitter end to theExpand
Does the velocity of light depend on the source movement
Data from spacecrafts tracking exhibit many anomalies that suggest the dependence of the speed of electromagnetic radiation with the motion of its source. This dependence is different from thatExpand
Measurement of the speed of light from extraterrestrial sources
The conventional measurements of the speed of light were performed before the early twentieth century. Only few used extraterrestrial sources and got the result with large uncertainty. We design aExpand
Equations of electrodynamics with noninvariant velocity of light
AbstractA five-dimensional spaceV5(t, x, c), in which the velocity of light c is the fifth coordinate of the event point together with the radius vectorx and time t is is introduced. The equationsExpand
A Study of Roemer's Method for Determining the Velocity of Light
A STUDY OF ROEMER'S METHOD FOR DETERMINING THE VELOCITY OF LIGHT EUGENE F. CHAFFIN BLUEFIELD COLLEGE BLUEFIELD, VA 24605 Data taken by the author during August to December 1988 on eclipses of theExpand
On reliability of determining the orbital parameters of exoplanets by the Doppler method
As a part of the program of searching for exoplanets, the hypothetical influence of changeable velocity of light (due to parameters of motion of a radiation source) on the results of spectrometricExpand
Spectrometric method for detecting exoplanets as another test to verify the invariance of the velocity of light
This paper analyzes the hypothetical influence of variability in the velocity of light associated with the motion parameters of a source on the results of spectral measurements of stars within anExpand
Light and Its Application to Relativity
In 1851 Fizeau made an interferometric measurement to determine how the speed of light is affected in a moving medium [1]. The chosen medium was water, flowing at a velocity v of about 700 cm/sExpand
Gravitational waves and red shifts: A space experiment for testing relativistic gravity using multiple time-correlated radio signals
We describe an experimental technique for detecting extremely low-frequency pulses of gravitational radiation (νGW ∼ 1–10 mHz) originating from collapsing supermassive objects (M ∼ 106−107m⊙)Expand
Outline of a Kinematic Light Experiment
The question whether light moves with constant or variable velocity is indubitably of the utmost importance. Preliminary reflections concerning the nature of that movement contrast the hypotheses ofExpand