TY - GEN
T1 - Revealing the largest gravitational lens PLCK G287.0+32.9
AU - Seitz, Stella
AU - Girardi, Marisa
AU - Gruen, Daniel
AU - Koekemoer, Anton M.
AU - Koppenhoefer, Johannes
AU - Mercurio, Amata
AU - Monna, Anna
AU - Nonino, Mario
AU - balestra, italo
AU - Zitrin, Adi
PY - 2016
Y1 - 2016
N2 - We propose to investigate the peculiar and extremely large gravitational
lens PLCK G287.0+32.9, discovered as one of the most massive objects in
SZ measurements by Planck. Our follow-up of the cluster with optical WFI
ground based imaging shows evident strong lensing features in the
cluster core. The outer arcs, confirmed at z=1.167 from our recent VIMOS
observations, is at a distanceof ~85" from the brightest and centrally
located galaxy of the cluster, which makes PLCK G287.0+32.9 a candidate
for the largest strong lens in the sky. If confirmed, this would
significantly add to the tension of observed Einstein radii with
predictions from Lambda-CDM. To this end, we require high resolution
spatial imaging of the cluster to verify its large lensing features and
further investigate its properties. Our goal is to use the HST
photometry with our recent VLT/VIMOS spectroscopic datasets to perform a
robust and detailed strong lensing analysis of this cluster. We aim to
trace the total mass distribution of PLCK G287.0+32.9 by combining the
strong lensing features with our WFI weak lensing analysis.
AB - We propose to investigate the peculiar and extremely large gravitational
lens PLCK G287.0+32.9, discovered as one of the most massive objects in
SZ measurements by Planck. Our follow-up of the cluster with optical WFI
ground based imaging shows evident strong lensing features in the
cluster core. The outer arcs, confirmed at z=1.167 from our recent VIMOS
observations, is at a distanceof ~85" from the brightest and centrally
located galaxy of the cluster, which makes PLCK G287.0+32.9 a candidate
for the largest strong lens in the sky. If confirmed, this would
significantly add to the tension of observed Einstein radii with
predictions from Lambda-CDM. To this end, we require high resolution
spatial imaging of the cluster to verify its large lensing features and
further investigate its properties. Our goal is to use the HST
photometry with our recent VLT/VIMOS spectroscopic datasets to perform a
robust and detailed strong lensing analysis of this cluster. We aim to
trace the total mass distribution of PLCK G287.0+32.9 by combining the
strong lensing features with our WFI weak lensing analysis.
M3 - Conference contribution
T3 - HST Proposal. Cycle 23
SP - 14165
BT - HST Proposal. Cycle 23
ER -