Re: Matter Currents & Gravitomagnetic force

Jerry Wayne Decker ( jwdatwork@yahoo.com )
Tue, 13 Jul 1999 11:31:16 -0700 (PDT)

Hi Folks!

Another indication of matter waves producing frame
dragging due to space/time distortions, production of
a 'static' gravitational field by a massive body in
motion;

http://www.aip.org/enews/physnews/1997/split/pnu345-1.htm

GRAVITATIONAL FRAME-DRAGGING IS OBSERVED . Just as an
electric charge emits an electric field and (if the
charge is in motion) a magnetic field, so a massive
body should, according to general relativity, emit a
static gravitational field and (if the body is moving
or rotating) an extra "gravitomagnetic" field (see
Update 295 and the accompanying figure).

Two groups of astronomers, one based in Rome (Luigi
Stella, stella@coma.mporzio.astro.it) and one at MIT
(Wei Cui, cui@space.mit.edu), now claim to have
detected experimental evidence for this force in the
form of subtle modulations in the x-ray signals coming
from neutron stars and monitored by the Rossi X-Ray
Timing Explorer (RXTE) satellite.

The phenomenon is sometimes called "frame dragging"
since its source is the distortions of space-time
caused by the rotating mass. The results were reported
yesterday at the High Energy Astrophysics Division
meeting of the American Astronomical Society in
Colorado.

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