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Constraining general relativity at z ∼ 0.299 MUSE Kinematics of SDP.81

Published online by Cambridge University Press:  29 March 2021

Carlos R. M. Carneiro Open the ORCID record for Carlos R. M. Carneiro [Opens in a new window] ,
Cristina Furlanetto  and
Ana L. Chies-Santos
Carlos R. M. Carneiro
Affiliation:
Departamento de Astronomia, Instituo de Física, UFRGS Porto Alegre, RS, Brasil email: [email protected]
Cristina Furlanetto
Affiliation:
Departamento de Astronomia, Instituo de Física, UFRGS Porto Alegre, RS, Brasil email: [email protected]
Ana L. Chies-Santos
Affiliation:
Departamento de Astronomia, Instituo de Física, UFRGS Porto Alegre, RS, Brasil email: [email protected]
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Abstract

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General Relativity has been successfully tested on small scales. However, precise tests on galactic and larger scales have only recently begun. Moreover, the majority of these tests on large scales are based on the measurements of Hubble constant (H0), which is currently under discussion. Collett et al. (2018) implemented a novel test combining lensing and dynamical mass measurements of a galaxy, which are connected by a γ parameter, and found γ=0.97±0.09, which is consistent with unity, as predicted by GR. We are carrying out this same technique with a second galaxy, SDP.81 at z=0.299, and present here our preliminary results.

Keywords

gravitational lensingstellar dynamicsgravitation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S359: Galaxy Evolution and Feedback across Different Environments , March 2019 , pp. 260 - 261
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

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