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© Centre for Modeling & Simulation, Savitribai Phule Pune University
| Title | Depletion of energy from naked singular regions during gravitational collapse |
| Author/s |
S. Jhingan
Centre for Theoretical Physics, Jamia Millia Islamia, New Delhi 110025, India I. H. Dwivedi 21, Ballabhji Vihar, Dayalbagh, Agra, India Sukratu Barve Centre for Modeling and Simulation, Savitribai Phule Pune University, Pune 411 007 India |
| Abstract | A distinguishable and observable physical property of naked singular regions of the spacetime formed during a gravitational collapse has important implications for both experimental and theoretical relativity. We examine here whether energy can escape physically from naked singular regions to reach either a local or a distant observer within the framework of general relativity. We find that in the case of imploding null dust collapse outgoing singular null geodesics including the Cauchy horizon can be immersed between two Vaidya spacetimes as null boundary layers with nonvanishing positive energy density. Thus energy can be transported from the naked singularity to either a local or a distant observer. An example illustrating that similar considerations can be applied to dust models is given. |
| Keywords | |
| Download | [137K pdf] |
| Citing This Document | S. Jhingan, I. H. Dwivedi, and Sukratu Barve. , Depletion of energy from naked singular regions during gravitational collapse . Technical Report CMS-TR-20110705 of the Centre for Modeling and Simulation, Savitribai Phule Pune University, Pune 411007, India (2011); available at http://cms.unipune.ac.in/reports/. |
| Notes, Published Reference, Etc. | Published as Physical Review D 84, 024001 (2011) |
| Contact |
sanjay.jhingan AT gmail.com
dwivedi AT gmail.com sukratu AT cms.unipune.ac.in |
| Supplementary Material |