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Point source models for the gravitational lens B1608+656: Indeterminacy in the prediction of the Hubble constant

Surpi, Gabriela and Blandford, Roger (2000) Point source models for the gravitational lens B1608+656: Indeterminacy in the prediction of the Hubble constant. . (Unpublished) https://resolver.caltech.edu/CaltechAUTHORS:20190603-111346826

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Abstract

We apply elliptical isothermal mass models to reproduce the point source properties, i.e. image positions, flux density ratios and time delay ratios, of the quadruple lens B1608+656. A wide set of suitable solutions is found, showing that models that only fit the properties of point sources are under-constrained and can lead to a large uncertainty in the prediction of H_◦. We present two examples of models predicting H_◦ = 100kms^(−1)Mpc^(−1) (χ^2 = 4) and H_◦ = 69kms^(−1)Mpc^(−1) (χ^2=24).


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
https://arxiv.org/abs/astro-ph/0002002arXivDiscussion Paper
ORCID:
AuthorORCID
Blandford, Roger0000-0002-1854-5506
Group:TAPIR
Record Number:CaltechAUTHORS:20190603-111346826
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190603-111346826
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96038
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:03 Jun 2019 18:35
Last Modified:03 Oct 2019 21:19

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