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相关论文: Diffuse Optical Light in Galaxy Clusters II: Corre…

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We study the properties of the diffuse light in galaxy clusters forming in a large hydrodynamical cosmological simulation of the Lambda-CDM cosmology. The simulation includes a model for radiative cooling, star formation in dense cold gas,…

We study colors and metallicities of the Brightest Cluster Galaxies (BCGs) and Intra-Cluster Light (ICL) in galaxy groups and clusters, as predicted by a semi-analytic model of galaxy formation, coupled with a set of high-resolution N-body…

星系天体物理 · 物理学 2019-01-30 E. Contini , S. K. Yi , X. Kang

The aim of this study is to quantify the infrared luminosity of clusters as a function of redshift and compare this with the X-ray luminosity. This can potentially constrain the origin of the infrared emission to be intracluster dust and/or…

天体物理学 · 物理学 2009-11-13 Martin Giard , Ludovic Montier , Etienne Pointecouteau , Ellen Simmat

The ultra-deep multiwavelength HST Frontier Fields coverage of the Abell Cluster 2744 is used to derive the stellar population properties of its intra-cluster light (ICL). The restframe colors of the ICL of this intermediate redshift…

宇宙学与河外天体物理 · 物理学 2015-06-19 Mireia Montes , Ignacio Trujillo

Using three newly identified galaxy clusters at z~1 (photometric redshift) we measure the evolution of the galaxies within clusters from high redshift to the present day by studying the growth of the red cluster sequence. The clusters are…

天体物理学 · 物理学 2009-11-13 J. E. Krick , J. A. Surace , D. Thompson , M. L. N. Ashby , J. L. Hora , V. Gorjian , L. Yan

We investigate whether the intracluster light (ICL) can serve as a reliable tracer of the shape of the underlying dark matter (DM) haloes in galaxy clusters. Using the cosmological Hydrangea cluster simulations, we measure the 3D and…

星系天体物理 · 物理学 2026-03-25 Adela Fernandez , Yannick Bahé , Nina Hatch , Joseph Butler , Tutku Kolcu , Garreth Martin , Mireia Montes

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

Based on optical and X-ray data for a sample of 34 relaxed rich clusters of galaxies with redshifts of 0.1-0.9, we studied relative spatial distributions of the two major baryon contents, the cluster galaxies and the hot plasmas. Using…

Ten galaxy clusters, with redshift ranging from 0.2 to 1, have been observed with the ISO camera in the two bands LW2 and LW3 (centered respectively at 6.75 and 15 microns). We present a first analysis for three of these clusters at…

天体物理学 · 物理学 2007-05-23 Dario Fadda , David Elbaz

Diffuse intracluster light (ICL) and cD galaxy halos are believed to originate from galaxy evolution and disruption. We present a kinematic study of the ICL in the Hydra I cluster core, using planetary nebulas (PNs) as tracers. We used…

宇宙学与河外天体物理 · 物理学 2015-05-27 G. Ventimiglia , M. Arnaboldi , O. Gerhard

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

We present the first sample of 882 optically selected galaxy clusters in the Deep Lens Survey (DLS), selected with the Bayesian Cluster Finder. We create mock DLS data to assess completeness and purity rates, and find that both are at least…

宇宙学与河外天体物理 · 物理学 2015-06-18 Begoña Ascaso , David Wittman , William Dawson

We present X-ray and optical properties of the optically confirmed galaxy cluster sample from the 3XMM/SDSS Stripe 82 cluster survey. The sample includes 54 galaxy clusters in the redshift range of 0.05-1.2, with a median redshift of 0.36.…

星系天体物理 · 物理学 2019-04-18 Ali Takey , Florence Durret , Isabel Márquez , Amael Ellien , Mona Molham , Adèle Plat

To study systematically the evolution on the angular extents of the galaxy, ICM, and dark matter components in galaxy clusters, we compiled the optical and X-ray properties of a sample of 340 clusters with redshifts $<0.5$, based on all the…

Analyses of B and R band observations of four compact groups reveal the presence of a considerable amount of diffuse, intergalactic light in two of them (HCG 79 and HCG 95). The diffuse component is presumably due to stellar material that…

天体物理学 · 物理学 2009-11-07 C. Mendes de Oliveira , C. Da Rocha , C. R. Rabaça , D. N. E. Pereira , M. Bolte

We analyze 700 clusters from the TNG300 hydrodynamical simulation ($M_{200}\geq5\times10^{13} \,M_{\odot}$ at (z=0)) to examine the radial stellar mass distribution of their central objects, consisting of the brightest cluster galaxy (BCG)…

We have conducted an automated search for galaxy clusters within a contiguous 16 square degree I-band survey in the north Galactic hemisphere. A matched filter detection algorithm identifies 444 cluster candidates in the range 0.2 <= z <=…

天体物理学 · 物理学 2009-11-07 Marc Postman , Tod R. Lauer , William Oegerle , Megan Donahue

We study the stellar halos of $0.2\lesssim z \lesssim 0.5$ galaxies with stellar masses spanning $M_*\sim 10^{10.5}$ to $10^{12}M_\odot$ (approximately $L_*$ galaxies at this redshift) using imaging data from the Cosmic Infrared Background…

Cluster cosmology depends critically on how optical clusters are selected from imaging surveys. We compare the conditional luminosity function (CLF) and weak lensing halo masses between two different cluster samples at fixed richness,…

星系天体物理 · 物理学 2023-07-26 Jesse B. Golden-Marx , Ying Zu , Jiaqi Wang , Hekun Li , Jun Zhang , Xiaohu Yang

We present a methodology for modeling and removing light from cluster galaxies and intracluster light (ICL) from $James\ Webb\ Space\ Telescope$ ($JWST$) images of gravitational lensing clusters. We apply our method to Webb's First Deep…