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相关论文: Parsec-scale Properties of Brightest Cluster Galax…

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We present new VLBI observations of a complete sample of Brigthest Cluster Galaxies (BCGs) in nearby Abell Clusters. These data show a possible difference between BCGs in cool core clusters (two-sided parsec scale jets) and in non cool core…

宇宙学与河外天体物理 · 物理学 2009-09-30 E. Liuzzo , G. Giovannini , M. Giroletti

We present a statistical study on parsec scale properties of a sample of Brigthest Cluster Galaxies (BCGs) in Abell Clusters. These data show a possible difference between BCGs in cool core clusters (two-sided parsec scale jets) and in non…

宇宙学与河外天体物理 · 物理学 2015-05-14 E. Liuzzo , G. Giovannini , M. Giroletti

We present here our results on a complete sample of Brightest Cluster Galaxies (BCGs) in nearby Abell Clusters (distance class <3). Combined with data from the literature, we provide parsec scale information for 34 BCGs. We found that also…

宇宙学与河外天体物理 · 物理学 2011-03-03 E. Liuzzo , G. Giovannini , M. Giroletti

We present new VLBI observations of Brightest Cluster Galaxies in eight nearby Abell clusters. These data show a possible difference between Brightest Cluster Galaxies in cool core clusters (two-sided pc scale jets) and in non cool core…

天体物理学 · 物理学 2008-02-26 G. Giovannini , E. Liuzzo , M. Giroletti

The aim of the present work is to study the radio emission on the parsec scale of 4C 26.42, the Brightest cluster galaxy in Abell 1795, in the framework of radiosources in a dense cool core cluster. We present Very Long Baseline Array…

宇宙学与河外天体物理 · 物理学 2015-05-13 E. Liuzzo , G. B. Taylor , G. Giovannini , M. Giroletti

We examine the radio properties of the Brightest Cluster Galaxies (BCGs) in a large sample of X-ray selected galaxy clusters comprising the Brightest Cluster Sample (BCS), the extended BCS (eBCS) and ROSAT-ESO Flux Limited X-ray (REFLEX)…

Abell~1142 is a low-mass galaxy cluster at low redshift containing two comparable Brightest Cluster Galaxies (BCG) resembling a scaled-down version of the Coma Cluster. Our Chandra analysis reveals an X-ray emission peak, roughly 100 kpc…

高能天体物理现象 · 物理学 2016-04-20 Yuanyuan Su , David A. Buote , Fabio Gastaldello , Reinout van Weeren

We investigate the relationship between brightest cluster galaxies (BCGs) and their host clusters using a sample of nearby galaxy clusters from the Representative XMM Cluster Structure Survey (REXCESS). The sample was imaged with the…

宇宙学与河外天体物理 · 物理学 2011-02-11 D. B. Haarsma , L. Leisman , M. Donahue , S. Bruch , H. Boehringer , J. H. Croston , G. W. Pratt , G. M. Voit , M. Arnaud , D. Pierini

There is a strong spatial correlation between brightest cluster galaxies (BCGs) and the peak density and cooling rate of the intra-cluster medium (ICM). In this paper we combine integral field spectroscopy, CO observations and X-ray data to…

宇宙学与河外天体物理 · 物理学 2015-06-03 S. L. Hamer , A. C. Edge , A. M. Swinbank , R. J. Wilman , H. R. Russell , A. C. Fabian , J. S. Sanders , P. Salom

We have observed 433 z<=0.08 brightest cluster galaxies (BCGs) in a full-sky survey of Abell clusters. The BCG Hubble diagram is consistent to within 2% of a Omega_m=0.3, Lambda=0.7 Hubble relation. The L_m-alpha relation for BCGs, which…

星系天体物理 · 物理学 2015-06-22 Tod R. Lauer , Marc Postman , Michael A. Strauss , Genevieve J. Graves , Nora E. Chisari

Based on HST and MUSE data, we probe the stellar and gas properties (i.e. kinematics, stellar mass, star formation rate) of the radio-loud brightest cluster galaxy (BCG) located at the centre of the X-ray luminous cool core cluster Abell…

We present Chandra and VLA observations of two galaxy clusters, Abell 160 and Abell 2462, whose brightest cluster galaxies (BCGs) host wide angle tailed radio galaxies (WATs). We search for evidence of interactions between the radio…

天体物理学 · 物理学 2009-11-10 N. N. Jetha , I. Sakelliou , M. J. Hardcastle , T. J. Ponman , I. R. Stevens

Brightest Cluster Galaxies (BCGs) show exceptional properties over the whole electromagnetic spectrum. Their special location at the centres of galaxy clusters raises the question of the role of the environment on their radio properties. To…

We study the distribution of projected offsets between the cluster X-ray centroid and the brightest cluster galaxy (BCG) for 65 X-ray selected clusters from the Local Cluster Substructure Survey (LoCuSS), with a median redshift of z=0.23.…

宇宙学与河外天体物理 · 物理学 2015-05-13 Alastair J. R. Sanderson , Alastair C. Edge , Graham P. Smith

We observed the brightest central galaxy (BCG) in the nearby (z=0.0821) cool core galaxy cluster Abell 2597 with the IRAC and MIPS instruments on board the Spitzer Space Telescope. The BCG was clearly detected in all Spitzer bandpasses,…

We investigate the relation between the properties of Brightest Cluster Galaxies (BCGs) and those of their host clusters. To quantify the properties of cluster hot gas, we employ the parameter $Z$ of the fundamental plane of X-ray clusters.…

天体物理学 · 物理学 2009-11-07 Haruyoshi Katayama , Kiyoshi Hayashida , Fumio Takahara , Yutaka Fujita

We present integral field spectroscopy of the nebular line emission in a sample of 9 brightest cluster galaxies (BCGs). The sample was chosen to probe both cooling flow and non-cooling flow clusters, as well as a range of cluster X-ray…

宇宙学与河外天体物理 · 物理学 2015-05-13 L. O. V. Edwards , C. Robert , M. Mollá , S. L. McGee

We measure surface brightness fluctuations in Chandra X-ray images of the cores of the galaxy clusters Abell 2029, Abell 2151, Abell 2107, RBS0533, and RBS0540. Their relatively structureless X-ray atmospheres exhibit the thermodynamic…

星系天体物理 · 物理学 2025-03-12 Muzi Li , B. R. McNamara , Irina Zhuravleva

Using drift scan data, a new approach to determining surface brightness profiles, and techniques for detecting low surface brightness signals, we fit the light profile of the brightest cluster galaxy (BCG) in the rich cluster Abell 1651 out…

天体物理学 · 物理学 2009-10-31 Anthony H. Gonzalez , Ann I. Zabludoff , Dennis Zaritsky , Julianne J. Dalcanton

We identified Brightest Cluster Members (BCM) on DSS images of 1083 Abell clusters, derived their individual and host cluster redshifts from literature and determined the BCM ellipticity. Half the BCMs move at a speed higher than 37 % of…

天体物理学 · 物理学 2015-06-24 H. Andernach , K. Alamo-Martinez , R. Coziol , E. Tago
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