Choosing a Maximum Drift Rate in a SETI Search: Astrophysical Considerations.

  title={Choosing a Maximum Drift Rate in a SETI Search: Astrophysical Considerations.},
  author={Sofia Z. Sheikh and Jason T. Wright and A. Siemion and J. Enriquez},
  journal={arXiv: Instrumentation and Methods for Astrophysics},
A radio transmitter which is accelerating with a non-zero radial component with respect to a receiver will produce a signal that appears to change its frequency over time. This effect, commonly produced in astrophysical situations where orbital and rotational motions are ubiquitous, is called a drift rate. In radio SETI (Search for Extraterrestrial Intelligence) research, it is unknown a priori which frequency a signal is being sent at, or even if there will be any drift rate at all besides… Expand

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