On the gravitational red-shift of galactic halos

Details On the gravitational red-shift of galactic halos On the gravitational red-shift of galactic halos

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nciml..39..177m&link_type=abstract

Nuovo Cimento, Lettere, Serie 2, vol. 39, March 3, 1984, p. 177-180.

Astronomy and Astrophysics

Astrophysics

1

Astrophysics, Galaxies, Gravitational Collapse, Gravitational Effects, Red Shift, Elementary Particles, Halos, Quasars

Scientific paper

Evidence for the existence of galactic halos is examined: namely the effect which the gravitational field of the massive halo has on the frequency of an electromagnetic signal going into (blue-shift) or leaving (red-shift) a galaxy. Limits for the gravitational red-shift to be expected for galactic halos are established. The possibility of collapsed galactic halos is discussed, and it is suggested that collapsed objects with masses larger than specified critical values and with angular velocity may be the energy source of quasars. The gravitational red-shift distribution around such a collapsed halo would be given by the well-known formula for the region outside the horizon of a black hole.

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