Weak field limit of Reissner-Nordstrom black hole lensing
classification
🌀 gr-qc
astro-ph
keywords
blackfieldholeimageslensinglimitreissner-nordstromweak
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We study gravitational lensing by a Reissner-Nordstrom (RN) black hole in the weak field limit. We obtain the basic equations for the deflection angle and time delay and find analytical expressions for the positions and amplifications of the primary and secondary images. Due to a net positive charge, the separation between images increases, but no change in the total magnification occurs.
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