236 citations · 4.5k across the 124 of their papers we have counts for
10 papers · 1 filter
The shape of galaxy dark matter halos in massive galaxy clusters: Insights from strong gravitational lensing
M. Jauzac, D. Harvey, R. Massey
We assess how much unused strong lensing information is available in the deep \emph{Hubble Space Telescope} imaging and VLT/MUSE spectroscopy of the \emph{Frontier Field} clusters.…
Growing a `Cosmic Beast': Observations and Simulations of MACS J0717.5+3745
M. Jauzac, D. Eckert, M. Schaller +18
We present a gravitational lensing and X-ray analysis of a massive galaxy cluster and its surroundings. The core of MACS\,J0717.5+3745 (\,$10^{15}…
Dark matter dynamics in Abell 3827: new data consistent with standard Cold Dark Matter
Richard Massey, David Harvey, Jori Liesenborgs +23
We present integral field spectroscopy of galaxy cluster Abell 3827, using ALMA and VLT/MUSE. It reveals an unusual configuration of strong gravitational lensing in the cluster cor…
Two Peculiar Fast Transients in a Strongly Lensed Host Galaxy
S. A. Rodney, I. Balestra, M. Bradac +32
A massive galaxy cluster can serve as a magnifying glass for distant stellar populations, with strong gravitational lensing exposing details in the lensed background galaxies that…
What if LIGO's gravitational wave detections are strongly lensed by massive galaxy clusters?
Graham P. Smith, Mathilde Jauzac, John Veitch +3
Motivated by the preponderance of so-called "heavy black holes" in the binary black hole (BBH) gravitational wave (GW) detections to date, and the role that gravitational lensing c…
Dark matter under the microscope: Constraining compact dark matter with caustic crossing events
Jose M. Diego, Nick Kaiser, Tom Broadhurst +12
A galaxy cluster acts as a cosmic telescope over background galaxies but also as a cosmic microscope of the lens imperfections. The diverging magnification of lensing caustics enha…
Extreme magnification of a star at redshift 1.5 by a galaxy-cluster lens
Patrick L. Kelly, Jose M. Diego, Steven Rodney +42
Galaxy-cluster gravitational lenses can magnify background galaxies by a total factor of up to ~50. Here we report an image of an individual star at redshift z=1.49 (dubbed "MACS J…
Hubble Frontier Fields: systematic errors in strong lensing models of galaxy clusters - Implications for cosmography
Ana Acebron, Eric Jullo, Marceau Limousin +5
Strong gravitational lensing by galaxy clusters is a fundamental tool to study dark matter and constrain the geometry of the Universe. Recently, the Hubble Space Telescope Frontier…
Mapping substructure in the HST Frontier Fields cluster lenses and in cosmological simulations
Priyamvada Natarajan, Urmila Chadayammuri, Mathilde Jauzac +14
We map the lensing-inferred substructure in the first three clusters observed by the Hubble Space Telescope Frontier Fields Initiative (HSTFF): Abell 2744 (z = 0.308), MACSJ0416, (…
A test for skewed distributions of dark matter and a possible detection in galaxy cluster Abell 3827
Peter Taylor, Richard Massey, Mathilde Jauzac +4
Simulations of self-interacting dark matter (SIDM) predict that dark matter should lag behind galaxies during a collision. If the interaction is mediated by a high-mass force carri…