The apparent velocity and acceleration of relativistically moving objects

被引：1

作者：

Berlet, Austen ^{[1
]}

McKeon, Dennis G. C. ^{[1
]}

Chishtie, Farrukh ^{[1
]}

Houde, Martin ^{[2
,3
]}

机构：

[1] Univ Western Ontario, Dept Appl Math, London, ON N6A 3K7, Canada

[2] Univ Western Ontario, Dept Phys & Astron, London, ON N6A 3K7, Canada

[3] CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA

来源：

CANADIAN JOURNAL OF PHYSICS | 2011年 / 89卷 / 06期

关键词：

RADIO-SOURCES; APPEARANCE;

D O I：

10.1139/P11-051

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Although special relativity limits the actual velocity of a particle to the velocity of light, c, the observed velocity need not be the same as the actual velocity, as the observer is only aware of the position of a particle at the time in the past when it emitted the detected signal. We consider the apparent speed and acceleration of a particle in two cases, one when the particle is moving with a constant speed and the other when it is moving with a constant acceleration. One curious feature of our results is that in both cases, if the actual velocity of the particle approaches c, then the apparent velocity approaches infinity when it is moving toward the observer and c/2 when it is moving away from the observer.

引用

页码：657 / 660

页数：4