Characterizing a cosmic string with the statistics of string lensing

Abstract

The deep imaging of the field of an observed lensing event by a cosmic string reveals many additional lensing events. We study the statistics of such string lensing. We derive explicit expressions for the distributions of image separations of lensing by a cosmic string and point out that they are quite sensitive to parameters which characterize the cosmic string, such as the redshift and tension of the cosmic string. Thus the statistics of string lensing events add new important information on the cosmic string which cannot be obtained from the detailed investigation of one lensing event.

4 pages, 3 figures, accepted for publication in Phys. Rev. D

References in corpus (4)

• Search for Cosmic Strings in CMB Anisotropies
• Observational constraints on cosmic strings: Bayesian analysis in a three dimensional parameter space
• The Rise and Fall of the Cosmic String Theory for Cosmological Perturbations
• Cosmic String Lensing and Closed Time-like Curves

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• Small-Angle CMB Temperature Anisotropies Induced by Cosmic Strings
• Analytic Study of Small Scale Structure on Cosmic Strings
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• Cosmic Strings from Supersymmetric Flat Directions
• Cosmic Superstring Gravitational Lensing Phenomena: Predictions for Networks of (p,q) Strings
• Direct Observation of Cosmic Strings via their Strong Gravitational Lensing Effect: II. Results from the HST/ACS Image Archive
• Search for Cosmic Strings in the GOODS Survey
• Direct Observation of Cosmic Strings via their Strong Gravitational Lensing Effect: I. Predictions for High Resolution Imaging Surveys
• Femto-lensing due to a Cosmic String
• Analytic Approaches to the Study of Small Scale Structure on Cosmic String Networks