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Related papers: Unveiling the Coma Cluster Structure: From the Cor…

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The Coma supercluster (100 Mpc) offers an unprecedented contiguous range of environments in the nearby Universe. In this paper we present a catalogue of spectroscopically confirmed galaxies in the Coma supercluster detected in the…

Astrophysics of Galaxies · Physics 2018-06-06 Smriti Mahajan , Ankit Singh , Devika Shobhana

We describe a far infrared survey of the Coma cluster and the galaxy filament it resides within. Our survey covers an area of $\sim$150 deg$^2$ observed by $Herschel$ H-ATLAS in five bands at 100, 160, 250, 350 and 500$\mu$m. The SDSS…

The Coma cluster is the richest and most compact of the nearby clusters, yet there is growing evidence that its formation is still on-going. A sensitive probe of this evolution is the dynamics of intracluster stars, which are unbound from…

The Dark Energy Spectroscopic Instrument (DESI) collaboration measured a tight relation between the Hubble constant ($H_0$) and the distance to the Coma cluster using the fundamental plane (FP) relation of the deepest, most homogeneous…

This paper presents morphological type, membership, and U-V color for a sample of galaxies in the Coma cluster direction, complete down to M_B=-15.00 mag and extending down to M_B=-14.25 mag. We have examined 1155 objects from the GMP 1983…

Astrophysics · Physics 2009-11-13 R. Michard , S. Andreon

We constrain the assembly history of galaxies in the projected central 0.5 Mpc of the Coma cluster by performing structural decomposition on 69 massive (M_star >= 10^9 M_sun) galaxies using high-resolution F814W images from the HST Treasury…

We present new deep images of the Coma Cluster from the ESA Herschel Space Observatory at wavelengths of 70, 100 and 160 microns, covering an area of 1.75 x 1.0 square degrees encompassing the core and southwest infall region. Our data…

The Universe expansion rate is modulated around local inhomogeneities due to their gravitational potential. Velocity waves are then observed around galaxy clusters in the Hubble diagram. This paper studies them in a ~738 Mpc wide, with…

Cosmology and Nongalactic Astrophysics · Physics 2024-04-30 Jenny G. Sorce , Roya Mohayaee , Nabila Aghanim , Klaus Dolag , Nicola Malavasi

We present a weak lensing analysis of the Coma Cluster using the Sloan Digital Sky Survey (SDSS) Data Release Five. Complete imaging of a ~ 200 square degree region is used to measure the tangential shear of this cluster. The shear is fit…

The hot X-ray emitting plasma in galaxy clusters is predicted to have turbulent motions which can contribute around ten percent of the cluster's central energy density. We report deep Chandra X-ray Observatory observations of the Coma…

Cosmology and Nongalactic Astrophysics · Physics 2013-09-20 J. S. Sanders , A. C. Fabian , E. Churazov , A. A. Schekochihin , A. Simionescu , S. A. Walker , N. Werner

We derive new effective radii and total magnitudes for 5 E and S0 galaxies in the Leo-I group from wide-field CCD images. These are used in conjunction with recent literature velocity data to construct the fundamental plane (FP) of the…

Astrophysics · Physics 2007-05-23 Jens Hjorth , Nial R. Tanvir

The Coma cluster is the richest and most compact of the nearby clusters, yet there is growing evidence that its formation is still on-going. With a new multi-slit imaging spectroscopy technique pioneered at the 8.2 m Subaru telescope and…

We have assembled a large data-set of 613 galaxy redshifts in the Coma cluster, the largest presently available for a cluster of galaxies. We have defined a sample of cluster members complete to b$_{26.5}=20.0$, using a membership criterion…

Astrophysics · Physics 2007-05-23 A. Biviano , F. Durret , D. Gerbal , O. LeFevre , C. Lobo , A. Mazure , E. Slezak

Galaxy clusters in the Universe occupy the important position of nodes of the cosmic web. They are connected among them by filaments, elongated structures composed of dark matter, galaxies, and gas. The connection of galaxy clusters to…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-05 Nicola Malavasi , Jenny G. Sorce , Klaus Dolag , Nabila Aghanim

We examine the structure and dynamics of the galaxies in the Coma cluster using a catalog of 552 redshifts including 243 new measurements. The velocity distribution is shown to be non-Gaussian due to structure associated with the group of…

Astrophysics · Physics 2008-11-26 Matthew Colless , Andrew M. Dunn

The large-scale distribution of globular clusters in the central region of the Coma cluster of galaxies is derived through the analysis of Hubble Space Telescope/Advanced Camera for Surveys data. Data from three different HST observing…

Astrophysics of Galaxies · Physics 2018-11-30 Juan P. Madrid , Conor R. O'Neill , Alexander T. Gagliano , Joshua R. Marvil

Recent observations of the Coma cluster of galaxies in its central region have provided approximately 250 new redshifts - allowing a good membership criterion to be established for brighter galaxies - and magnitudes for 8000 objects in the…

Astrophysics · Physics 2007-05-23 F. Durret , A. Biviano , D. Gerbal , O. Le Fevre , C. Lobo , A. Mazure , E. Slezak

The study of dynamically cold stellar streams reveals information about the gravitational potential where they reside and provides important constraints on dark matter properties. However, their intrinsic faintness makes detection beyond…

We notice that nearby galaxies having high negative peculiar velocities are distributed over the sky very inhomogeneously. A part of this anisotropy is caused by the "Local Velocity Anomaly", i.e. by the bulk motion of nearby galaxies away…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Igor D. Karachentsev , Olga G. Nasonova , Helene M. Courtois

We determine the luminosity function (LF) of galaxies in the core of the Coma cluster for M_R<=-11.4 (assuming H_0=75 km/s/Mpc), a magnitude regime previously explored only in the Local Group. Objects are counted in a deep CCD image of Coma…

Astrophysics · Physics 2009-10-28 G. M. Bernstein , R. C. Nichol , J. A. Tyson , M. P. Ulmer , D. Wittman
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