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相关论文: A redshift survey between the clusters of galaxies…

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The galaxy cluster A3667 was observed using the Two-degree Field (2dF) multifibre spectroscopic system on the Anglo-Australian Telescope in a program designed to examine the velocity structure in the region. Specifically, we sought evidence…

天体物理学 · 物理学 2009-11-13 M. Johnston-Hollitt , R. W. Hunstead , E. Corbett

We report 102 new redshifts and magnitudes for a sample of galaxies to RF ~ 15.5 mag in a 2.17 deg x 2.17 deg region centered on the galaxy IC 4296, the most luminous member of the A3565 cluster. Up to the limiting magnitude we find 29…

天体物理学 · 物理学 2019-08-17 C. N. A. Willmer , M. A. G. Maia , S. O. Mendes , M. V. Alonso , L. A. Rios , O. L. Chaves , D. F. de Mello

In this paper we present new AAOmega spectroscopy of 254 galaxies within a 30' radius around Abell 3888. We combine these data with the existing redshifts measured in a one degree radius around the cluster and performed a substructure…

宇宙学与河外天体物理 · 物理学 2016-02-24 S. Shakouri , M. Johnston-Hollitt , S. Dehghan

As a part of our galaxy-cluster redshift survey, we present a set of 80 new velocities in the 4 clusters Abell 376, Abell 970, Abell 1356, and Abell 2244, obtained at Haute-Provence observatory. This set now completes our previous analysis,…

宇宙学与河外天体物理 · 物理学 2015-05-18 Dominique Proust , Hugo V. Capelato , Gastao B. Lima Neto , Laerte Sodre

We present a dynamical analysis of the central ~1.3 square degrees of the cluster of galaxies Abell 1367, based on 273 redshift measurements (of which 119 are news). From the analysis of the 146 confirmed cluster members we derive a…

天体物理学 · 物理学 2009-11-10 L. Cortese , G. Gavazzi , A. Boselli , J. Iglesias-Paramo , L. Carrasco

We report the first results of a spectroscopic survey of galaxies in the core of the Shapley Concentration, the richest nearby supercluster of clusters of galaxies. We have measured 311 new galaxy redshifts in an area of $\sim 4.5$ square…

天体物理学 · 物理学 2015-06-24 S. Bardelli , E. Zucca , G. Vettolani , G. Zamorani

We present new redshift measurements for 55 galaxies in the vicinity of the rich galaxy cluster Abell 665. When combined with results from the literature, we have good velocity measurements for a sample of 77 confirmed cluster members from…

天体物理学 · 物理学 2009-10-31 Percy L. Gomez , John P. Hughes , Mark Birkinshaw

Archival XMM and ROSAT X-ray data are used to investigate the structure of the Abell 548 - Abell 3367 region. Based on previous optical studies, this is a region likely to be rich in structure though studies are in disagreement regarding…

宇宙学与河外天体物理 · 物理学 2026-05-01 Mark J. Henriksen , Layla Ahmed

We present the results of an extensive spectroscopic survey of RX J0152.7-1357, one of the most massive distant clusters of galaxies known. Multi-object spectroscopy, carried out with FORS1 and FORS2 on the ESO Very Large Telescope (VLT),…

An extensive redshift survey has been conducted on a sample of 15 nearby (0.01 < z < 0.05) clusters of galaxies. A total number of 860 redshifts were determined by fitting of emission--lines and/or cross-correlation techniques. Of this…

天体物理学 · 物理学 2007-05-23 P. Stein

We present a dynamical analysis of the galaxy cluster Abell 376 based on a set of 73 velocities, most of them measured at Pic du Midi and Haute-Provence observatories and completed with data from the literature. Data on individual galaxies…

天体物理学 · 物理学 2009-11-07 D. Proust , H. V. Capelato , G. Hickel , L. Sodre , G. B. Lima Neto , H. Cuevas

We present results of our wide-field redshift survey of galaxies in a 285 square degree region of the Shapley Supercluster (SSC), based on a set of 10529 velocity measurements (including 1201 new ones) on 8632 galaxies obtained from various…

We present evidence for the existence of significant substructure in the cold front cluster Abell 3667 based on multi-object spectroscopy taken with the 3.9m Anglo Australian Telescope. This paper is the second in a series analyzing the…

天体物理学 · 物理学 2011-02-11 Matt S. Owers , Warrick J. Couch , Paul E. J. Nulsen

(abridged) We present the results of a redshift survey of intercluster galaxies in the central region of the Shapley Concentration supercluster, aimed at determining the distribution of galaxies in between obvious overdensities. Our sample…

天体物理学 · 物理学 2009-10-31 S. Bardelli , E. Zucca , G. Zamorani , L. Moscardini , R. Scaramella

The 2dF Galaxy Redshift Survey has obtained 135,000 redshifts for galaxies in two broad strips. Here we present the first results of a 3-dimensional search for galaxy clusters based on known 2-dimensional compilations. We derive new…

天体物理学 · 物理学 2015-06-24 Roberto De Propris , Warrick J. Couch , the 2dFGRS Team

We present new radial velocities from AAOmega on the Anglo-Australian Telescope for 307 galaxies (b_J < 19.5) in the region of the rich cluster Abell 1386. Consistent with other studies of galaxy clusters that constitute sub-units of…

宇宙学与河外天体物理 · 物理学 2015-05-19 Kevin A. Pimbblet , Heinz Andernach , Cherie K. Fishlock , Isaac G. Roseboom , Matthew S. Owers

The mass distribution of the rich cluster of galaxies Cl0024+1654 has frequently been used to constrain the nature of dark matter yet a model consistent with all the observational data has been difficult to construct. In this paper we…

天体物理学 · 物理学 2009-11-07 Oliver Czoske , Ben Moore , Jean-Paul Kneib , Genevieve Soucail

We present ASCA gas temperature maps of the nearby merging galaxy clusters Cygnus A, A3667, and A2065. Cygnus A appears to have a particularly simple merger geometry that allows an estimate of the subcluster collision velocity from the…

天体物理学 · 物理学 2009-10-31 M. Markevitch , C. L. Sarazin , A. Vikhlinin

We present the results from an extensive spectroscopic survey of the central region of the nearby galaxy cluster Abell 2199 at $z=0.03$. By combining 775 new redshifts from the MMT/Hectospec observations with the data in the literature, we…

星系天体物理 · 物理学 2017-06-28 Hyunmi Song , Ho Seong Hwang , Changbom Park , Takayuki Tamura

We carried out a dynamical study of the galaxy cluster pair A3407 \& A3408 based on a spectroscopic survey obtained with the 4 meter Blanco telescope at the CTIO, plus 6dF data, and ROSAT All-Sky-Survey. The sample consists of 122 member…

星系天体物理 · 物理学 2016-07-27 R. S. Nascimento , A. L. B. Ribeiro , M. Trevisan , E. R. Carrasco , H. Plana , R. Dupke
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