DISENTANGLING THE ICL WITH THE CHEFs: ABELL 2744 AS A CASE STUDY

Jiménez-Teja, Y.; Dupke, Renato A.

doi:10.3847/0004-637x/820/1/49

Cited by 38 publications

(52 citation statements)

References 51 publications

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“…where σ is the standard deviation of the flux. In Figure 11, we compare the ICL fraction of CLIO with the cluster ICL studies of Krick et al (2006), Presotto et al (2014), Burke et al (2015), Morishita et al (2016) and Jiménez-Teja & Dupke (2016). It should be noted that there is currently no standard method for the determination of ICL fractions, as such each study mentioned here employs various limiting radii and masking processes.…”

Section: Intracluster Lightmentioning

confidence: 97%

MUSE spectroscopy and deep observations of a unique compact JWST target, lensing cluster CLIO

Griffiths

Conselice

Alpaslan

et al. 2018

Monthly Notices of the Royal Astronomical Society

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We present the results of a VLT MUSE/FORS2 and Spitzer survey of a unique compact lensing cluster CLIO at z = 0.42, discovered through the GAMA survey using spectroscopic redshifts. Compact and massive clusters such as this are understudied, but provide a unique prospective on dark matter distributions and for finding background lensed high-z galaxies. The CLIO cluster was identified for follow up observations due to its almost unique combination of high mass and dark matter halo concentration, as well as having observed lensing arcs from ground based images. Using dual band optical and infra-red imaging from FORS2 and Spitzer, in combination with MUSE optical spectroscopy we identify 89 cluster members and find background sources out to z = 6.49. We describe the physical state of this cluster, finding a strong correlation between environment and galaxy spectral type. Under the assumption of a NFW profile, we measure the total mass of CLIO to be M 200 = (4.49 ± 0.25) × 10 14 M . We build and present an initial strong-lensing model for this cluster, and measure a relatively low intracluster light (ICL) fraction of 7.21 ± 1.53% through galaxy profile fitting. Due to its strong potential for lensing background galaxies and its low ICL, the CLIO cluster will be a target for our 110 hour JWST 'Webb Medium-Deep Field' (WMDF) GTO program.

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Section: Intracluster Lightmentioning

confidence: 97%

MUSE spectroscopy and deep observations of a unique compact JWST target, lensing cluster CLIO

Griffiths

Conselice

Alpaslan

et al. 2018

Monthly Notices of the Royal Astronomical Society

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show abstract

“…The definition of the ICL is probably the most serious issue for observational studies ( [10,[13][14][15][16][17]), while it is much less complex in theoretical ones. A non-unique definition of the ICL makes comparisons among studies very complicated, and this applies not only between theoretical and observational works but also between the same "class".…”

Section: Introductionmentioning

confidence: 99%

On the Origin and Evolution of the Intra-Cluster Light: A Brief Review of the Most Recent Developments

Contini

2021

Galaxies

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Not all the light in galaxy groups and clusters comes from stars that are bound to galaxies. A significant fraction of it constitutes the so-called intracluster or diffuse light (ICL), a low surface brightness component of groups/clusters generally found in the surroundings of the brightest cluster galaxies and intermediate/massive satellites. In this review, I will describe the mechanisms responsible for its formation and evolution, considering the large contribution given to the topic in the last decades by both the theoretical and observational sides. Starting from the methods that are commonly used to isolate the ICL, I will address the remarkable problem given by its own definition, which still makes the comparisons among different studies not trivial, to conclude by giving an overview of the most recent works that take advantage of the ICL as a luminous tracer of the dark matter distribution in galaxy groups and clusters.

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“…Notice that this is a minimum condition, since if it is violated no method would be able to disentangle the two light distributions. CICLE has been successfully tested with mock data and applied to real data from cluster Abell 2744 (Jiménez-Teja & Dupke 2016).…”

Section: Introductionmentioning

confidence: 99%

Unveiling the Dynamical State of Massive Clusters through the ICL Fraction

Jiménez-Teja

Dupke

Benı́tez

et al. 2018

ApJ

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We have selected a sample of eleven massive clusters of galaxies observed by the Hubble Space Telescope in order to study the impact of the dynamical state on the IntraCluster Light (ICL) fraction, the ratio of total integrated ICL to the total galaxy member light. With the exception of the Bullet cluster, the sample is drawn from the Cluster Lensing and Supernova Survey and the Frontier Fields program, containing five relaxed and six merging clusters. The ICL fraction is calculated in three optical filters using the CHEFs IntraCluster Light Estimator, a robust and accurate algorithm free of a priori assumptions. We find that the ICL fraction in the three bands is, on average, higher for the merging clusters, ranging between ∼ 7 − 23%, compared with the ∼ 2 − 11% found for the relaxed systems. We observe a nearly constant value (within the error bars) in the ICL fraction of the regular clusters at the three wavelengths considered, which would indicate that the colors of the ICL and the cluster galaxies are, on average, coincident and, thus, their stellar populations. However, we find a higher ICL fraction in the F606W filter for the merging clusters, consistent with an excess of lower-metallicity/younger stars in the ICL, which could have migrated violently from the outskirts of the infalling galaxies during the merger event.AAST E X Unveiling the dynamical state of massive clusters through the ICL fraction 3

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DISENTANGLING THE ICL WITH THE CHEFs: ABELL 2744 AS A CASE STUDY

Cited by 38 publications

References 51 publications

MUSE spectroscopy and deep observations of a unique compact JWST target, lensing cluster CLIO

MUSE spectroscopy and deep observations of a unique compact JWST target, lensing cluster CLIO

On the Origin and Evolution of the Intra-Cluster Light: A Brief Review of the Most Recent Developments

Unveiling the Dynamical State of Massive Clusters through the ICL Fraction

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