Testing the Evolution of the Correlations between Supermassive Black Holes and their Host Galaxies using Eight Strongly Lensed Quasars. (arXiv:2005.13550v1 [astro-ph.GA])

Testing the Evolution of the Correlations between Supermassive Black Holes and their Host Galaxies using Eight Strongly Lensed Quasars. (arXiv:2005.13550v1 [astro-ph.GA])
<a href="http://arxiv.org/find/astro-ph/1/au:+Ding_X/0/1/0/all/0/1">Xuheng Ding</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Treu_T/0/1/0/all/0/1">Tommaso Treu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Birrer_S/0/1/0/all/0/1">Simon Birrer</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Agnello_A/0/1/0/all/0/1">Adriano Agnello</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sluse_D/0/1/0/all/0/1">Dominique Sluse</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Fassnacht_C/0/1/0/all/0/1">Chris Fassnacht</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Auger_M/0/1/0/all/0/1">Matthew W. Auger</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wong_K/0/1/0/all/0/1">Kenneth C. Wong</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Suyu_S/0/1/0/all/0/1">Sherry H. Suyu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Morishita_T/0/1/0/all/0/1">Takahiro Morishita</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rusu_C/0/1/0/all/0/1">Cristian E. Rusu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Galan_A/0/1/0/all/0/1">Aymeric Galan</a>

One of the main challenges in using high redshift active galactic nuclei to
study the correlations between the mass of the supermassive Black Hole (MBH)
and the properties of their active host galaxies is instrumental resolution.
Strong lensing magnification effectively increases instrumental resolution and
thus helps to address this challenge. In this work, we study eight strongly
lensed active galactic nuclei (AGN) with deep Hubble Space Telescope imaging,
using the lens modelling code Lenstronomy to reconstruct the image of the
source. Using the reconstructed brightness of the host galaxy, we infer the
host galaxy stellar mass based on stellar population models. MBH are estimated
from broad emission lines using standard methods. Our results are in good
agreement with recent work based on non-lensed AGN, providing additional
evidence that the correlation evolves over cosmic time. At the moment, the
sample size of lensed AGN is small and thus they provide mostly a consistency
check on systematic errors related to resolution for the non-lensed AGN.
However, the number of known lensed AGN is expected to increase dramatically in
the next few years, through dedicated searches in ground and space based wide
field surveys, and they may become a key diagnostic of black hole and galaxy
co-evolution.

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