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Article Dans Une Revue Universe Année : 2021

Lensing Magnification Seen by Gravitational Wave Detectors

Giulia Cusin
  • Fonction : Auteur
Ruth Durrer
  • Fonction : Auteur
Irina Dvorkin

Résumé

In this paper, we studied the gravitational lensing of gravitational wave events. The probability that an observed gravitational wave source has been (de-)amplified by a given amount is a detector-dependent quantity which depends on different ingredients: the lens distribution, the underlying distribution of sources and the detector sensitivity. The main objective of the present work was to introduce a semi-analytic approach to study the distribution of the magnification of a given source population observed with a given detector. The advantage of this approach is that each ingredient can be individually varied and tested. We computed the expected magnification as both a function of redshift and of the observedsource luminosity distance, which is the only quantity one can access via observation in the absence of an electromagnetic counterpart. As a case study, we then focus on the LIGO/Virgo network and on strong lensing (μ>1).
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hal-03559991 , version 1 (02-03-2022)

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Giulia Cusin, Ruth Durrer, Irina Dvorkin. Lensing Magnification Seen by Gravitational Wave Detectors. Universe, 2021, 8 (1), pp.19. ⟨10.3390/universe8010019⟩. ⟨hal-03559991⟩
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