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

被引：5
作者：
Cisneros, S. [1 ,2 ]
Goedecke, G. [2 ]
Beetle, C. [3 ]
Engelhardt, M. [2 ]
机构：
[1] MIT, Dept Phys, Cambridge, MA 02139 USA
[2] New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA
[3] Florida Atlantic Univ, Dept Phys, Boca Raton, FL 33431 USA
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2015年 / 448卷 / 03期
关键词：
black hole physics; galaxies: distances and redshifts; galaxies: kinematics and dynamics; cosmology: theory; ACTIVE GALACTIC NUCLEI; BLACK-HOLE; ACCRETION DISK; SAGITTARIUS; RELATIVITY; MODELS;
D O I：
10.1093/mnras/stv172
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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.
引用
收藏
页码：2733 / 2736
页数：4
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