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Related papers: The splashback radius of optically selected cluste…

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We present a 4 deg^2 weak gravitational lensing survey of subhalos in the very nearby Coma cluster using the Subaru/Suprime-Cam. The large apparent size of cluster subhalos allows us to measure the mass of 32 subhalos detected in a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Nobuhiro Okabe , Toshifumi Futamase , Masaru Kajisawa , Risa Kuroshima

In the hierarchical evolution framework of cosmology, larger halos grow through matter accretion and halo mergers. To clarify the halo evolution, we need to define the halo mass and radius physically. However, the pseudo-evolution problem…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-12 Weiwei Xu , Huanyuan Shan , Ran Li , Ji Yao , Chunxiang Wang , Nan Li , Chaoli Zhang

We construct a large, redshift complete sample of distant galaxy clusters by correlating Sloan Digital Sky Survey (SDSS) Data Release 12 (DR12) redshifts with clusters identified with the red-sequence Matched-filter Probabilistic…

Cosmology and Nongalactic Astrophysics · Physics 2017-06-07 Pablo Jimeno , Tom Broadhurst , Ruth Lazkoz , Raul Angulo , Jose-Maria Diego , Keiichi Umetsu , Ming-chung Chu

We present measurements of projected autocorrelation functions w_p(r_p) for the stellar mass of galaxies and for their light in the U, B and V bands, using data from the third data release of the DEEP2 Galaxy Redshift Survey and the final…

We discuss an algorithm whereby the massive galaxy clusters detected in the SRG/eROSITA all-sky survey are identified and their photometric redshifts are estimated. For this purpose, we use photometric redshift estimates for galaxies and…

This paper presents a morphology classification catalog of spiral and ring features of 59,854 magnitude-limited galaxies ($r<17.8$ mag, and additional 628,005 subsamples down to $r=20$ mag) at $z=0.01-0.3$ based on the Third Public Data…

Astrophysics of Galaxies · Physics 2024-01-05 Rhythm Shimakawa , Masayuki Tanaka , Kei Ito , Makoto Ando

Reducing the scatter between cluster mass and optical richness is a key goal for cluster cosmology from photometric catalogs. We consider various modifications to the red-sequence matched filter richness estimator of Rozo et al. (2009), and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 E. S. Rykoff , B. P. Koester , E. Rozo , J. Annis , A. E. Evrard , S. M. Hansen , J. Hao , D. E. Johnston , T. A. McKay , R. H. Wechsler

We present significant evidence of halo assembly bias for SDSS redMaPPer galaxy clusters in the redshift range $[0.1, 0.33]$. By dividing the 8,648 clusters into two subsamples based on the average member galaxy separation from the cluster…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-03 Hironao Miyatake , Surhud More , Masahiro Takada , David N. Spergel , Rachel Mandelbaum , Eli S. Rykoff , Eduardo Rozo

Galaxy cluster centring is a key issue for precision cosmology studies using galaxy surveys. Mis-identification of central galaxies causes systematics in various studies such as cluster lensing, satellite kinematics, and galaxy clustering.…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-07 Chiaki Hikage , Rachel Mandelbaum , Alexie Leauthaud , Eduardo Rozo , Eli S. Rykoff

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 the Hubble Space Telescope in 16 filters spanning 0.2 - 1.7…

We present the results of a search for galaxy clusters in Subaru-XMM Deep Field. We reach a depth for a total cluster flux in the 0.5-2 keV band of 2x10^{-15} ergs cm^{-2} s^{-1} over one of the widest XMM-Newton contiguous raster surveys,…

We present a multi-wavelength catalog in the Subaru-XMM Deep Field (SXDF) as part of the Spitzer Large Area Survey with Hyper-Suprime-Cam (SPLASH). We include the newly acquired optical data from the Hyper-Suprime Cam Subaru Strategic…

The splashback radius $r_\mathrm{sp}$ has been identified in cosmological $N$-body simulations as an important scale associated with gravitational collapse and the phase-space distribution of recently accreted material. We employ a…

Cosmology and Nongalactic Astrophysics · Physics 2019-03-27 Omar Contigiani , Valeri Vardanyan , Alessandra Silvestri

We present a catalogue of low surface brightness (LSB) galaxies in the Coma cluster obtained from deep Subaru/Suprime-Cam V and R-band imaging data within a region of $\sim$4 deg$^2$. We increase the number of LSB galaxies presented in Yagi…

Astrophysics of Galaxies · Physics 2020-06-18 Adebusola B. Alabi , Aaron J. Romanowsky , Duncan A. Forbes , Jean P. Brodie , Nobuhiro Okabe

We employ panoramic, multicolour (BRz') and narrow-band Halpha imaging of the cluster Cl0024.0+1652 (z=0.39) from Subaru covering a ~30 arcmin field, to determine cluster membership and star formation rates for a large sample of galaxies…

Astrophysics · Physics 2009-11-10 Tadayuki Kodama , Michael Balogh , Ian Smail , Richard Bower , Fumiaki Nakata

We study the population of galaxies around galaxy clusters in the hydrodynamic simulation suite IllustrisTNG 300-1 to study the signatures of their evolutionary history on observable properties. We measure the radial number density profile,…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-23 Tara Dacunha , Matthew Belyakov , Susmita Adhikari , Tae-hyeon Shin , Samuel Goldstein , Bhuvnesh Jain

The Planck satellite has detected cluster candidates via the Sunyaev Zel'dovich (SZ) effect, but the optical follow-up required to confirm these candidates is still incomplete, especially at high redshifts and for SZ detections at low…