bhattacharya shouvik scope_jc

Measuring Hubble Constant Using "H0Li-COW V. New

COSMOGRAIL Time delays" by V. Bonvin

et al.Mr. Shouvik Kanti Bhattacharya

SCOPE Journal Club MeetingUniversity of Strathclyde

Feb 22, 2017Bonvin V. et al. H0LiCOW – V. New COSMOGRAIL time delays of HE 0435−1223: H0 to 3.8 per cent precision from strong lensing in a flat CDM model. MNRAS 2016;465:4914-4930.

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Overview

BackgroundOverall

ModelResults “Where do we come from …” Paul Gauguin

http://www.mfa.org/collections/object/where-do-we-come-from-what-are-we-where-are-we-going-32558

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“Edwin Hubble, I have watched you for four years and I have never seen you study for ten minutes."

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Summary

Time Delay Strong Lensing probe is weakly sensitive to any single cosmological parametric model

Scopes of improvement: enlarging the sample, improving lens modelling accuracy and mass calibration, more observations