Astronomy and Astrophysics – Astronomy
Scientific paper
May 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999apj...517l..31r&link_type=abstract
The Astrophysical Journal, Volume 517, Issue 1, pp. L31-L33.
Astronomy and Astrophysics
Astronomy
14
Galaxy: Center, Gravitation, Cosmology: Gravitational Lensing
Scientific paper
The concentrated mass at the Galactic center is considered as a gravitational lens that focuses gravitational-wave energy to the Earth. It is found that 60 Hz gravitational waves from a rotating neutron star outside our Galaxy are focused onto a region having an approximate radius of 1.1x10^11 m (assuming that the concentrated mass has the form of a supermassive black hole). The increase in intensity (which is proportional to the square of the increase in strain amplitude h) is by a factor of approximately 17,000. Sources within our Galaxy lead to increases in intensity by a factor that can exceed 4000.
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