Skip to main content Accessibility help
×
Home
Hostname: page-component-99c86f546-kpmwg Total loading time: 0.254 Render date: 2021-12-05T06:12:35.475Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

4 - Cosmic censorship

Published online by Cambridge University Press:  15 August 2009

Pankaj S. Joshi
Affiliation:
Tata Institute of Fundamental Research, Mumbai, India
Get access

Summary

As indicated here, the cosmic censorship hypothesis is fundamental to the basic theory and applications in blackhole physics. It follows from the previous considerations that the cosmic censorship, if it does hold, is not valid in any obvious and plain manner in general relativity, but it has to be carefully designed and formulated. This is important for any clear basis and foundation for blackhole physics. As yet, such a mathematical formulation is not available, and much work is needed to achieve one. In such a case, the existence and formation of blackholes as the final state of a gravitational collapse, whenever a massive star collapses in the universe on exhausting its nuclear fuel, cannot be taken as automatic.

Basically, cosmic censorship is a statement about the causal structure of spacetime, as related to the dynamical collapse scenarios that are fundamental processes in astrophysics and cosmology. Therefore, in this chapter, which aims to discuss various aspects related to the censorship conjecture and its possible formulations, are considered in Section 4.1 some basic aspects of the causal structure of spacetime. The physics related to gravity becomes much more important in situations such as gravitational collapse and those of the early universe phases in cosmology. The general theory of relativity predicts the occurrence of spacetime singularity in such situations, which are the extreme gravity regions where densities, spacetime curvatures, and other physical quantities take extreme values. The quantum gravity effects would become much more prominent in such regions.

Type
Chapter
Information
Publisher: Cambridge University Press
Print publication year: 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Send book to Kindle

To send this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

  • Cosmic censorship
  • Pankaj S. Joshi, Tata Institute of Fundamental Research, Mumbai, India
  • Book: Gravitational Collapse and Spacetime Singularities
  • Online publication: 15 August 2009
  • Chapter DOI: https://doi.org/10.1017/CBO9780511536274.005
Available formats
×

Send book to Dropbox

To send content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about sending content to Dropbox.

  • Cosmic censorship
  • Pankaj S. Joshi, Tata Institute of Fundamental Research, Mumbai, India
  • Book: Gravitational Collapse and Spacetime Singularities
  • Online publication: 15 August 2009
  • Chapter DOI: https://doi.org/10.1017/CBO9780511536274.005
Available formats
×

Send book to Google Drive

To send content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about sending content to Google Drive.

  • Cosmic censorship
  • Pankaj S. Joshi, Tata Institute of Fundamental Research, Mumbai, India
  • Book: Gravitational Collapse and Spacetime Singularities
  • Online publication: 15 August 2009
  • Chapter DOI: https://doi.org/10.1017/CBO9780511536274.005
Available formats
×