Issue |
EAS Publications Series
Volume 30, 2008
Spanish Relativity Meeting - Encuentros Relativistas Españoles , ERE2007: Relativistic Astrophysics and Cosmology
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Page(s) | 261 - 264 | |
DOI | https://doi.org/10.1051/eas:0830040 | |
Published online | 30 September 2008 |
A. Oscoz, E. Mediavilla and M. Serra-Ricart (eds)
EAS Publications Series, 30 (2008) 261-264
Marginally outer trapped surfaces in stationary initial data
Dept. de Física Fundamental,
Universidad de Salamanca,
Plaza de la Merced s/n, 37008 Salamanca, Spain
We present two results for bounding marginally outer trapped surfaces (MOTSs) in Killing initial data satisfying the null energy condition and containing an untrapped barrier. The first one applies to the stationary case and states that no bounding MOTS lying in the exterior region where the stationary Killing vector is causal and penetrating into the timelike region can exist. The second result applies to the static case and shows that no bounding MOTS can penetrate into the exterior region where the static Killing vector is timelike. These results extend an interesting theorem by P. Miao (Miao 2005).
© EAS, EDP Sciences, 2008