The space microwave interferometer and the search for cosmic background gravitational wave radiation

Details The space microwave interferometer and the search for cosmic background gravitational wave radiation The space microwave interferometer and the search for cosmic background gravitational wave radiation

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989nascp3046...75a&link_type=abstract

In NASA, Relativistic Gravitational Experiments in Space p 75-79 (SEE N90-19940 12-90)

Astronomy and Astrophysics

Astrophysics

Background Radiation, Cosmic Rays, Gravitational Waves, Microwave Interferometers, Radiation Detectors, Radiation Sources, Astrophysics, Detection, Electromagnetic Radiation, Interplanetary Spacecraft, Satellite-Borne Instruments, Sensitivity, Spaceborne Astronomy, Tdr Satellites

Scientific paper

Present and planned investigations which use interplanetary spacecraft for gravitational wave searches are severely limited in their detection capability. This limitation has to do both with the Earth-based tracking procedures used and with the configuration of the experiments themselves. It is suggested that a much improved experiment can now be made using a multiarm interferometer designed with current operating elements. An important source of gravitational wave radiation, the cosmic background, may well be within reach of detection with these procedures. It is proposed to make a number of experimental steps that can now be carried out using TDRSS spacecraft and would conclude in the establishment of an operating multiarm microwave interferometer. This interferometer is projected to have a sensitivity to cosmic background gravitational wave radiation with an energy of less than 10-4 cosmic closure density and to periodic waves generating spatial strain approaching 10-19 in the range 0.1 to 0.001 Hz.

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