English
Related papers

Related papers: A triple nucleus in the Brightest Cluster Galaxy i…

200 papers

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…

Cosmology and Nongalactic Astrophysics · Physics 2011-03-03 E. Liuzzo , G. Giovannini , M. Giroletti

We have found that the brightest cluster galaxy (BCG) in Abell~85, Holm 15A, displays the largest core so far known. Its cusp radius, $r_{\gamma} = 4.57 \pm 0.06$ kpc ($4.26^{\prime\prime}\pm 0.06^{\prime\prime}$), is more than 18 times…

We report ALMA Early Science CO(1-0) and CO(3-2) observations of the brightest cluster galaxy (BCG) in Abell 1664. The BCG contains 1.1x10^{10} solar masses of molecular gas divided roughly equally between two distinct velocity systems: one…

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,…

The X-ray cluster C0337-2522 at redshift $z=0.59$ hosts in its core a group of five elliptical galaxies. Using N-body simulations we show that a multiple merging event among the five galaxies is expected to take place in the next few Gyrs,…

Astrophysics · Physics 2015-06-24 C. Nipoti , M. Stiavelli , L. Ciotti , T. Treu , P. Rosati

Hubble Space Telescope images of the galaxy cluster Abell 2261, obtained as part of the Cluster Lensing And Supernova survey with Hubble, show that the brightest galaxy in the cluster, A2261-BCG, has the largest core yet detected in any…

New high-resolution r band imaging of the brightest cluster galaxy (BCG) in Abell 85 (Holm 15A) was obtained using the Gemini Multi Object Spectrograph. These data were taken with the aim of deriving an accurate surface brightness profile…

Astrophysics of Galaxies · Physics 2016-03-16 Juan P. Madrid , Carlos J. Donzelli

We have obtained a new high-resolution K'-band image of the central region of the rich X-ray cluster RX J0848.9+4452 at z=1.26. We found that the brightest cluster galaxy (BCG) in the cluster is clearly separated into two distinct objects.…

Astrophysics · Physics 2009-11-07 T. Yamada , Y. Koyama , F. Nakata , M. Kajisawa , I. Tanaka , T. Kodama , S. Okamura , R. De Propris

We used the HST WFPC2 to obtain I-band images of the centers of 81 brightest cluster galaxies (BCGs), drawn from a volume-limited sample of nearby BCGs. The images show a rich variety of morphological features, including multiple or double…

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…

Astrophysics · Physics 2008-02-26 G. Giovannini , E. Liuzzo , M. Giroletti

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…

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…

Here we analyze radio, optical, and X-ray data for a peculiar cluster Abell 578. This cluster is not fully relaxed and consists of two merging sub-systems. The brightest cluster galaxy, CGPG 0719.8+6704, is a pair of interacting ellipticals…

High Energy Astrophysical Phenomena · Physics 2015-06-03 K. Hagino , L. Stawarz , A. Siemiginowska , C. C. Cheung , D. Koziel-Wierzbowska , A. Szostek , G. Madejski , D. E. Harris , A. Simionescu , T. Takahashi

Abell 2146 ($z$ = 0.232) consists of two galaxy clusters undergoing a major merger. The system was discovered in previous work, where two large shock fronts were detected using the $\textit{Chandra X-ray Observatory}$, consistent with a…

We present new VLBI observations at 5 GHz of a complete sample of Brightest Cluster Galaxies (BCGs) in nearby Abell Clusters (distance class <3). Combined with data from the literature, this provides parsec-scale information for 34 BCGs.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 E. Liuzzo , G. Giovannini , M. Giroletti , G. B. Taylor

We present a multiwavelength study of the massive galaxy cluster Abell 1763 at redshift z = 0.231. Image analysis of a 19.6 ks Chandra archival observation reveals a cluster-wide spiral of enhanced surface brightness in the intracluster…

High Energy Astrophysical Phenomena · Physics 2018-12-07 E. M. Douglass , E. L. Blanton , S. W. Randall , T. E. Clarke , L. O. V. Edwards , Z. Sabry , J. A. ZuHone

We examine the properties of a previously discovered population of globular clusters in the heart of the rich galaxy cluster Abell 1185 that might be intergalactic in nature. Deep images obtained with the Advanced Camera for Surveys (ACS)…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Michael J. West , Andres Jordan , John P. Blakeslee , Patrick Cote , Michael D. Gregg , Marianne Takamiya , Ronald O. Marzke

We report the results of a multi-wavelength study of the nearby galaxy group, Abell 3581 (z=0.0218). This system hosts the most luminous cool core of any nearby group and exhibits active radio mode feedback from the super-massive black hole…

We present the K-band Hubble diagram for 162 brightest cluster galaxies (BCGs) in X-ray selected clusters, 0.01<z<0.83. The sample incorporates that of Burke, Collins, & Mann (2000) and includes additional infrared data from the 2MASS…

Astrophysics · Physics 2007-05-23 Sarah Brough , Chris A. Collins , Doug J. Burke , Paul D. Lynam , Robert G. Mann

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…

Astrophysics of Galaxies · Physics 2015-06-22 Tod R. Lauer , Marc Postman , Michael A. Strauss , Genevieve J. Graves , Nora E. Chisari
‹ Prev 1 2 3 10 Next ›