Gravitational collapse of a cylindrical null shell in vacuum

• Main Author: S. Khakshournia
• Format: Article
• Language: English
• Published: Isfahan University of Technology 2008-03-01
• Series: Iranian Journal of Physics Research
• Subjects: general relativity; null shell; gravitational waves
• Online Access: http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-140&slc_lang=en&sid=1

  Barrabès-Israel null shell formalism is used to study the gravitational collapse of a thin cylindrical null shell in vacuum. In general the lightlike matter shell whose history coincides with a null hypersurface is characterized by a surface energy density. In addition, a gravitational impulsive wave is present on this null hypersurface whose generators admit both the shear and expansion. In the case of imposing the cylindrical flatness the surface energy-momentum tensor of the matter shell on the null hypersurface vanishes and the null hyper- surface is just the history of the gravitational wave .