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相关论文: Characterising the intra-cluster light in The Thre…

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We take advantage of a state-of-art semi analytic model of galaxy formation, and the model presented in \citet{contini21a}, to investigate the mass distribution of Brightest Cluster Galaxies (BCGs) and Intra-Cluster Light (ICL) by…

星系天体物理 · 物理学 2022-04-06 E. Contini , H. Z. Chen , Q. S. Gu

Extragalactic stars within galaxy clusters contribute to the intracluster light (ICL), which is thought to be a promising tracer of the underlying dark matter (DM) distribution. In this study, we employ the TNG300 simulation to investigate…

We present a pilot study of the intracluster light (ICL) in massive clusters using imaging of the $z=0.566$ cluster of galaxies WHL J013719.8-08284 observed by the RELICS project with the HST. We measure the ICL fraction in four optical…

Still largely unexplored, the diffuse light in cluster of galaxies traces the past and on-going buildup of these massive structures. Here, we present the first comprehensive study of the intracluster light (ICL) of the cluster…

星系天体物理 · 物理学 2022-12-07 Mireia Montes , Ignacio Trujillo

The intracluster light (ICL) fraction is a well-known indicator of the dynamical activity in intermediate-redshift clusters. Merging clusters in the redshift interval $0.18<z<0.56$ have a distinctive peak in the ICL fractions measured…

星系天体物理 · 物理学 2024-01-08 Yolanda Jiménez-Teja , Renato A. Dupke , Paulo A. A. Lopes , Paola Dimauro

We improve the model presented in Contini & Gu 2020 that describes the radial mass distribution of brightest cluster galaxies (BCGs) and the diffuse component also known as intra-cluster light (ICL), by assuming that the global BCG+ICL…

星系天体物理 · 物理学 2021-07-21 Emanuele Contini , QiuSheng Gu

Measurements of the intracluster light (ICL) are still prone to methodological ambiguities and there are multiple techniques in the literature for that purpose, mostly based on the binding energy, the local density distribution, or the…

星系天体物理 · 物理学 2016-03-23 Y. Jimenez-Teja , R. Dupke

We present a JWST analysis of intracluster light (ICL) in XLSSC 122 at z = 1.98, currently the most distant known strong lensing galaxy cluster with an evolved member population. Using deep JWST imaging complemented by HST data and careful…

The intracluster light (ICL) fraction, measured at certain specific wavelengths, has been shown to provide a good marker for determining the dynamical stage of galaxy clusters, i.e., merging versus relaxed, for small to intermediate…

星系天体物理 · 物理学 2023-08-09 Y. Jiménez-Teja , R. A. Dupke , P. A. A. Lopes , J. M. Vílchez

The intracluster light (ICL) is a faint diffuse stellar component in clusters made of stars not bound to individual galaxies. We have carried out a large scale study of this component in the nearby Virgo cluster. The diffuse light is traced…

We are undertaking a program to measure the characteristics of the intracluster light (total flux, profile, color, and substructure) in a sample of 10 galaxy clusters with a range of cluster mass, morphology, and redshift. We present here…

天体物理学 · 物理学 2008-11-26 J. E. Krick , R. A. Bernstein , K. A. Pimbblet

In this Letter we revisit the relationship between the fraction of the intra-cluster light (ICL) and both the virial mass and the fraction of Early Type Galaxies in the host halo. This is based on a statistically significant and homogeneous…

We use a set of high-resolution hydrodynamical simulations of clusters of galaxies to study the build-up of the intracluster light (ICL), an interesting and likely significant component of their total stellar mass. Our sample of groups and…

宇宙学与河外天体物理 · 物理学 2015-05-18 Ewald Puchwein , Volker Springel , Debora Sijacki , Klaus Dolag

Strong lensing galaxy clusters provide a unique and powerful way to test simulation-derived structure predictions that follow from $\Lambda$ Cold Dark Matter ($\Lambda$CDM) cosmology. Specifically, the relative alignments of the dark matter…

The diffuse starlight extending throughout massive galaxy clusters, known as intracluster light (ICL), has the potential to be read as a memoir of mass accretion: informative, individual, and yet imperfect. Here, we combine dark matter-only…

星系天体物理 · 物理学 2025-12-05 Tara Dacunha , Phil Mansfield , Risa Wechsler

The diffuse stellar component of galaxy clusters made up of intergalactic stars is termed the intracluster light (ICL). Though there is a developing understanding of the mechanisms by which the ICL is formed, no strong consensus has yet…

星系天体物理 · 物理学 2024-09-18 Harley J. Brown , Garreth Martin , Frazer R. Pearce , Nina A. Hatch , Yannick M. Bahé , Yohan Dubois

We examine the stellar mass assembly in galaxy cluster cores using data from the Cluster Lensing and Supernova survey with Hubble (CLASH). We measure the growth of brightest cluster galaxy (BCG) stellar mass, the fraction of the total…

宇宙学与河外天体物理 · 物理学 2017-02-22 Claire Burke , Matt Hilton , Chris Collins

We present a pilot study on the origin and assembly history of the ICL for four galaxy clusters at 0.44<z<0.57 observed with the Hubble Space Telescope from the Cluster Lensing and Supernova Survey with Hubble (CLASH) sample. Using this…

星系天体物理 · 物理学 2015-06-23 Tahlia DeMaio , Anthony Gonzalez , Ann Zabludoff , Dennis Zaritsky , Marusa Bradac

We aim at constraining the assembly history of clusters by studying the intra cluster light (ICL) properties, estimating its contribution to the fraction of baryons in stars, f*, and understanding possible systematics/bias using different…