Publication : t00/159

Cosmic Strings Lens Phenomenology Revisited

Bernardeau F. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Uzan J.-P. (Laboratoire de Physique Théorique (LPT), CNRS, UMR 8627, Université de Paris-Sud XI, F-91405 Orsay, France)
Abstract:
We present investigations of lens phenomenological properties of cosmic strings for deep galaxy surveys. General results that have obtained for lineic energy distribution are presented first. We stress that generically the local convergence always vanishes in presence of strings although there might be some significant distortions. We then propose a simplified model of strings, we call ``Poisson strings'', for which exhaustive investigations can be done either numerically or analytically.
Année de publication : 2000
Chapitre de livre : in: Proceedings of the XXth Moriond Astrophysics Meeting Cosmological Physics with Gravitational Lensing
Pages : p. 211
Communication : in: Proceedings of the XXth Moriond Astrophysics Meeting : Proceedings of the XXth Moriond Astrophysics Meeting in: Proceedings of the XXth Moriond Astrophysics Meeting Cosmological Physics with Gravitational Lensing ; Les Arcs, France ; 2000-03-11 / 2000-03-18
Preprint : arXiv:astro-ph/0008136
Langue : Anglais
Editeurs : Kneib J.-P., Mellier Y., Moniez M., Trân Thanh Vân J.

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