854 citations · 3k across the 23 of their papers we have counts for
23 papers
CLASH: Accurate Photometric Redshifts with 14 HST bands in Massive Galaxy Cluster Cores
A. Molino, N. Benítez, B. Ascaso +41
We present accurate photometric redshifts for galaxies observed by the Cluster Lensing and Supernova survey with Hubble (CLASH). CLASH observed 25 massive galaxy cluster cores with…
CLASH: The Concentration-Mass Relation of Galaxy Clusters
J. Merten, M. Meneghetti, M. Postman +38
We present a new determination of the concentration-mass relation for galaxy clusters based on our comprehensive lensing analysis of 19 X-ray selected galaxy clusters from the Clus…
CLASH: z ~ 6 young galaxy candidate quintuply lensed by the frontier field cluster RXC J2248.7-4431
A. Monna, S. Seitz, N. Greisel +37
We present a quintuply lensed z ~ 6 candidate discovered in the field of the galaxy cluster RXC J2248.7-4431 (z ~ 0.348) targeted within the Cluster Lensing and Supernova survey wi…
CLASH: A Census of Magnified Star-Forming Galaxies at z ~ 6-8
L. D. Bradley, A. Zitrin, D. Coe +34
We utilize 16 band Hubble Space Telescope (HST) observations of 18 lensing clusters obtained as part of the Cluster Lensing And Supernova survey with Hubble (CLASH) Multi-Cycle Tre…
CLASH: Photometric redshifts with 16 HST bands in galaxy cluster fields
S. Jouvel, O. Host, O. Lahav +35
The Cluster Lensing And Supernovae survey with Hubble (CLASH) is an Hubble Space Telescope (HST) Multi-Cycle Treasury program observing 25 massive galaxy clusters. CLASH observatio…
Galaxy halo truncation and Giant Arc Surface Brightness Reconstruction in the Cluster MACSJ1206.2-0847
Thomas Eichner, Stella Seitz, Sherry H. Suyu +32
In this work we analyze the mass distribution of MACSJ1206.2-0847, especially focusing on the halo properties of its cluster members. The cluster appears relaxed in its X-ray emiss…
CLASH: Three Strongly Lensed Images of a Candidate z ~ 11 Galaxy
Dan Coe, Adi Zitrin, Mauricio Carrasco +20
We present a candidate for the most distant galaxy known to date with a photometric redshift z = 10.7 +0.6 / -0.4 (95% confidence limits; with z < 9.5 galaxies of known types ruled…
A Census of Star-Forming Galaxies in the z~9-10 Universe based on HST+Spitzer Observations Over 19 CLASH clusters: Three Candidate z~9-10 Galaxies and Improved Constraints on the Star Formation Rate Density at z~9
R. Bouwens, L. Bradley, A. Zitrin +34
We utilise a two-color Lyman-Break selection criterion to search for z~9-10 galaxies over the first 19 clusters in the CLASH program. A systematic search yields three z~9-10 candid…
A highly magnified candidate for a young galaxy seen when the Universe was 500 Myrs old
Wei Zheng, Marc Postman, Adi Zitrin +33
The early Universe at redshift z\sim6-11 marks the reionization of the intergalactic medium, following the formation of the first generation of stars. However, those young galaxies…
CLASH: Mass Distribution in and around MACS J1206.2-0847 from a Full Cluster Lensing Analysis
Keiichi Umetsu, Elinor Medezinski, Mario Nonino +45
We derive an accurate mass distribution of the galaxy cluster MACS J1206.2-0847 (z=0.439) from a combined weak-lensing distortion, magnification, and strong-lensing analysis of wid…
CLASH: Precise New Constraints on the Mass Profile of Abell 2261
Dan Coe, Keiichi Umetsu, Adi Zitrin +43
We precisely constrain the inner mass profile of Abell 2261 (z=0.225) for the first time and determine this cluster is not "over-concentrated" as found previously, implying a forma…
The Cosmological Impact of Intrinsic Alignment Model Choice for Cosmic Shear
Donnacha Kirk, Anais Rassat, Ole Host +1
We consider the effect of galaxy intrinsic alignments (IAs) on dark energy constraints from weak gravitational lensing. We summarise the latest version of the linear alignment mode…
CLASH: Discovery of a Bright z~6.2 Dwarf Galaxy Quadruply Lensed by MACS J0329.6-0211
A. Zitrin, J. Moustakas, L. Bradley +22
We report the discovery of a z_{phot}=6.18^{+0.05}_{-0.07} (95% confidence level) dwarf galaxy, lensed into four images by the galaxy cluster MACS J0329.6-0211 (z_{l}=0.45). The ga…
Galaxy cluster strong lensing: image deflections from density fluctuations along the line of sight
Ole Host
A standard method to study the mass distribution in galaxy clusters is through strong lensing of background galaxies in which the positions of multiple images of the same source co…
Cluster Lensing And Supernova survey with Hubble (CLASH): An Overview
Marc Postman, Dan Coe, Narciso Benitez +42
The Cluster Lensing And Supernova survey with Hubble (CLASH) is a 524-orbit multi-cycle treasury program to use the gravitational lensing properties of 25 galaxy clusters to accura…
The Cluster Lensing and Supernova Survey with Hubble (CLASH): Strong Lensing Analysis of Abell 383 from 16-Band HST WFC3/ACS Imaging
A. Zitrin, T. Broadhurst, D. Coe +38
We examine the inner mass distribution of the relaxed galaxy cluster Abell 383 in deep 16-band HST/ACS+WFC3 imaging taken as part of the CLASH multi-cycle treasury program. Our pro…
A detailed statistical analysis of the mass profiles of galaxy clusters
Ole Host, Steen H. Hansen
The distribution of mass in the halos of galaxies and galaxy clusters has been probed observationally, theoretically, and in numerical simulations. Yet there is still confusion abo…
Determining all gas properties in galaxy clusters from the dark matter distribution alone
Teddy F. Frederiksen, Steen H. Hansen, Ole Host +1
We demonstrate that all properties of the hot X-ray emitting gas in galaxy clusters are completely determined by the underlying dark matter (DM) structure. Apart from the standard…
Measurement of the dark matter velocity anisotropy profile in galaxy clusters
Ole Host
Dark matter particles form halos that contribute the major part of the mass of galaxy clusters. The formation of these cosmological structures have been investigated both observati…
Measurement of the dark matter velocity anisotropy in galaxy clusters
Ole Host, Steen H. Hansen, Rocco Piffaretti +4
The internal dynamics of a dark matter structure may have the remarkable property that the local temperature in the structure depends on direction. This is parametrized by the velo…
The impact of going beyond the Maxwell distribution in direct dark matter detection rates
J. D. Vergados, S. H. Hansen, O. Host
We consider direct dark matter detection rates and investigate the difference between a standard Maxwell-Boltzmann velocity distribution and a "realistic" distribution like the one…
Forecasting neutrino masses from combining KATRIN and the CMB: Frequentist and Bayesian analyses
Ole Host, Ofer Lahav, Filipe B. Abdalla +1
We present a showcase for deriving bounds on the neutrino masses from laboratory experiments and cosmological observations. We compare the frequentist and Bayesian bounds on the ef…
What it takes to measure a fundamental difference between dark matter and baryons: the halo velocity anisotropy
Ole Host, Steen H Hansen
Numerous ongoing experiments aim at detecting WIMP dark matter particles from the galactic halo directly through WIMP-nucleon interactions. Once such a detection is established a c…