Work

On the Doppler effect for light from orbiting sources in Kerr-type metrics

Year: 2015

Type: article

Abstract: A formula is derived for the combined motional and gravitational Doppler effect in general stationary axisymmetric metrics for a photon emitted parallel or antiparallel to the assumed circular orbital motion of its source. The same formula is derived by both the eikonal approximation and Killing vector approaches to elucidate connections between observational astronomy and modern relativity. The formula yields expected results in the limits of a moving or stationary source in the exterior Kerr and Schwarzschild metrics and is useful for broad range astrophysical analyses.

Source: Monthly Notices of the Royal Astronomical Society

DOI: 10.1093/mnras/stv172

Authors: S. Cisneros, G. Goedecke, C. Beetle, M. Engelhardt

Institutions: New Mexico State University, Massachusetts Institute of Technology, Florida Atlantic University

Language: English

Topic: Relativity and Gravitational Theory

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2149936072

FWCI: 0.38

Cites: 24

Cited by: 16

Related to: 10