Are naked singularities really visible

Details Are naked singularities really visible Are naked singularities really visible

Dec 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978nciml..23..539c&link_type=abstract

Nuovo Cimento, Lettere, Serie 2, vol. 23, Dec. 9, 1978, p. 539-542. Research supported by the Consiglio Nazionale delle Ricerch

Astronomy and Astrophysics

Astronomy

4

Cosmology, Frequency Shift, Gravitational Collapse, Relativistic Theory, Signal Detection, Space-Time Functions, Black Holes (Astronomy), Red Shift

Scientific paper

The appearance of a naked singularity to a stationary observer at infinity in the case of the Kerr metric is considered. The belief that a naked singularity can be 'seen' if observed strictly along the equatorial plane is shown to be incorrect in the sense that any signal that could be emitted from a naked singularity, even in the equatorial plane, would be infinitely redshifted. It is suggested that, as far as optical appearance is concerned, a naked singularity would be indistinguishable from a black hole, regardless of the choice of observer.

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