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Observational distinction between black holes and naked singularities: the role of the redshift function. Preview this item
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Observational distinction between black holes and naked singularities: the role of the redshift function.

Author: Néstor Ortiz; Olivier Sarbach; Thomas Zannias
Publisher: Bristol, UK : IOP Publishing, 2015.
Edition/Format:   Downloadable article : Document   Computer File : English
Publication:Classical and quantum gravity
Summary:
Abstract: We suggest that the redshift of photons traveling from past to future null infinity through a collapsing object could provide an observational signature capable of differentiating between the formation of a globally naked singularity and the formation of an event horizon. Supporting evidence for this idea is drawn from the analysis of photons with zero angular momentum through the center of a collapsing  Read more...
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Details

Material Type: Document, Internet resource
Document Type: Internet Resource, Article, Computer File
All Authors / Contributors: Néstor Ortiz; Olivier Sarbach; Thomas Zannias
ISSN:0264-9381
OCLC Number: 1051937989
Notes: In: Classical and quantum gravity, Vol. 32, no. 24 (Dec. 2015), p.-
Description: 1 online resource

Abstract:

Abstract: We suggest that the redshift of photons traveling from past to future null infinity through a collapsing object could provide an observational signature capable of differentiating between the formation of a globally naked singularity and the formation of an event horizon. Supporting evidence for this idea is drawn from the analysis of photons with zero angular momentum through the center of a collapsing spherical dust cloud. We show that the frequency shift as a function of proper time with respect to stationary observers has distinct features depending on whether the object collapses to a black hole or a naked singularity.

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