Results 1 to 10 of about 91,719 (307)

Brightest Cluster Galaxy Alignments in Merging Clusters [PDF]

The Astrophysical Journal, 2019
The orientations of brightest cluster galaxies (BCGs) and their host clusters tend to be aligned, but the mechanism driving this is not clear. To probe the role of cluster mergers in this process, we quantify alignments of 38 BCGs in 22 clusters ...
Foote, Drake, Golovich, Nathan, Wittman, David   +2 more
core   +6 more sources

Deep and narrow CO absorption revealing molecular clouds in the Hydra-A brightest cluster galaxy [PDF]

Monthly notices of the Royal Astronomical Society, 2019
Active galactic nuclei play a crucial role in the accretion and ejection of gas in galaxies. Although their outflows are well studied, finding direct evidence of accretion has proved very difficult and has so far been done for very few sources.
Tom Rose, A. C. Edge, F. Combes, M. Gaspari, S. Hamer, N. P. H. Nesvadba, H. R. Russell, G. Tremblay, Stefi A. Baum, C. P. O’Dea, A. B. Peck, Craig L. Sarazin, A. N. Vantyghem, M. N. Bremer, Megan Donahue, A. C. Fabian, G. J. Ferland, B. R. McNamara, R. Mittal, J. B. R. Oonk, P. Salomé, A. M. Swinbank, G. Mark Voit   +22 more
openalex   +3 more sources

Brightest Cluster Galaxy Offsets in Cold Dark Matter [PDF]

The Open Journal of Astrophysics
The distribution of offsets between the brightest cluster galaxies of galaxy clusters and the centroid of their dark matter distributions is a promising probe of the underlying dark matter physics.
Cian Roche, Michael McDonald, Josh Borrow, Mark Vogelsberger, Xuejian Shen, Volker Springel, Lars Hernquist, Ruediger Pakmor, Sownak Bose, Rahul Kannan   +9 more
doaj   +2 more sources

The Black Hole Mass in Brightest Cluster Galaxy NGC 6086 [PDF]

, 2010
We present the first direct measurement of the central black hole mass, M_BH, in NGC 6086, the Brightest Cluster Galaxy (BCG) in Abell 2162. Our investigation demonstrates for the first time that stellar dynamical measurements of M_BH in BCGs are ...
Gebhardt, Karl, Graham, James R., Lauer, Tod R., Ma, Chung-Pei, McConnell, Nicholas J., Richstone, Douglas O., Wright, Shelley A.   +6 more
core   +2 more sources

THE BRIGHTEST CLUSTER GALAXY IN A85: THE LARGEST CORE KNOWN SO FAR [PDF]

, 2014
We have found that the brightest cluster galaxy (BCG) in A85, Holm 15A, displays the largest core known so far. Its cusp radius, rγ = 4.57 ± 0.06 kpc (4.″26 ± 0.″06), is more than 18 times larger than the mean for BCGs and ≳ 1 kpc larger than A2261-BCG ...
Omar Lopez‐Cruz, C. Añorve, M. Birkinshaw, D. M. Worrall, Héctor J. Ibarra-Medel, Wayne Barkhouse, J. P. Torres-Papaqui, V. Motta   +7 more
openalex   +3 more sources

LoCuSS: the connection between brightest cluster galaxy activity, gas cooling and dynamical disturbance of X-ray cluster cores [PDF]

, 2009
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, with a median redshift of z = 0.23.
Alastair J. R. Sanderson, Alastair C. Edge, Graham P. Smith, Alastair C. Edge, Graham P. Smith   +4 more
openalex   +3 more sources

A candidate supermassive binary black hole system in the brightest cluster galaxy of RBS 797 [PDF]

, 2013
Context. The radio source at the center of the cool-core galaxy cluster RBS 797 ( z  = 0.35) is known to exhibit a misalignment of its radio jets and lobes observed at different VLA scales, with the innermost ~kpc-scale jets being almost orthogonal to ...
Myriam Gitti, M. Giroletti, G. Giovannini, L. Feretti, Elisabetta Liuzzo   +4 more
openalex   +3 more sources

Feedback and Brightest Cluster Galaxy Formation: ACS Observations of the Radio Galaxy TN J1338--1942 at z=4.1 [PDF]

, 2005
We present deep optical imaging of the z=4.1 radio galaxy TN J1338--1942 obtained using the ACS on-board HST. The radio galaxy is known to reside within a large galaxy overdensity (both in physical extent and density contrast).
A. R. Martel, Andrew W. Zirm, Antonucci R., B. Holden, B. Venemans, Brocklehurst M., C. De Breuck, C. Gronwall, C. J. Burrows, D. A. Golimowski, D. R. Ardila, De Breuck C., De Breuck C., Dickson R., E. S. Cheng, F. Bartko, F. Menanteau, G. D. Illingworth, G. F. Hartig, G. K. Miley, G. R. Meurer, H. C. Ford, H. D. Tran, H. J. A. Rottgering, J. E. Krist, J. P. Blakeslee, Jorgensen I., Kurk J. D., L. D. Bradley, L. Infante, M. Clampin, M. Franx, M. P. Lesser, M. Postman, M. Sirianni, N. Benitez, N. Homeier, N. J. G. Cross, P. D. Feldman, P. Rosati, Pentericci L., R. A. Brown, R. A. Kimble, R. A. Overzier, R. Demarco, R. J. Bouwens, R. L. White, Rees M. J., S. Mei, T. Goto, T. J. Broadhurst, V. Motta, van Ojik R., W. B. Sparks, W. Zheng, West M. J., Z. I. Tsvetanov   +56 more
core   +2 more sources

Optical IFU Observations of the Brightest Cluster Galaxy NGC 4696: The Case for a Minor Merger and Shock-excited Filaments [PDF]

, 2010
We present deep optical integral-field spectroscopic observations of the nearby (z ~ 0.01) brightest cluster galaxy NGC 4696 in the core of the Centaurus Cluster, made with the Wide Field Spectrograph (WiFeS) on the ANU 2.3m telescope at Siding Spring ...
Allen, C. L. Farage, Crawford, de Jong, de Vaucouleurs, Delgado, Donahue, Donahue, Dopita, Dopita, Egami, Egami, Fabian, Fabian, Fabian, Filippenko, Fosbury, G. V. Bicknell, Gebhardt, Heckman, Hicks, Hinshaw, Johnstone, Johnstone, Jorgensen, Joye, Kaneda, Kewley, Laine, Lewis, Lim, M. A. Dopita, Magorrian, McDowell, McNamara, Monreal-Ibero, Nørgaard-Nielsen, O'Dea, Ogle, Ogrean, Osterbrock, P. J. McGregor, Quillen, Rafferty, Rich, Sabra, Sabra, Schlegel, Shobbrook, Sparks, Sparks, Voit, Wise   +52 more
core   +2 more sources

Star Formation, Radio Sources, Cooling X-Ray Gas, and Galaxy Interactions in the Brightest Cluster Galaxy in 2A0335+096 [PDF]

, 2007
We present deep emission-line imaging taken with the new SOAR Optical Imager of the brightest cluster galaxy (BCG) in the nearby (z = 0.035) X-ray cluster of galaxies 2A0335+096.
Megan Donahue, Ming Sun, C. P. O’Dea, G. Mark Voit, K. W. Cavagnolo   +4 more
openalex   +3 more sources