Results 1 to 10 of about 59,835 (213)

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 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 López-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

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

Chandra Observations of Abell 2261 Brightest Cluster Galaxy, a Candidate Host to a Recoiling Black Hole [PDF]

, 2020
We use Chandra X-ray observations to look for evidence of a recoiling black hole from the brightest cluster galaxy in Abell 2261 (A2261-BCG). A2261-BCG is a strong candidate for a recoiling black hole because of its large, flat stellar core, revealed by ...
K. Gültekin, S. Burke-Spolaor, T. Lauer, T. Joseph W. Lazio, L. Moustakas, P. Ogle, M. Postman   +6 more
semanticscholar   +1 more source

The Dust and Molecular Gas in the Brightest Cluster Galaxy in MACS 1931.8-2635 [PDF]

Astrophysical Journal, 2019
We present new Atacama Large Millimeter Array observations of the molecular gas and far-infrared continuum around the brightest cluster galaxy (BCG) in the cool-core cluster MACS 1931.8-2635. Our observations reveal (1.9 ± 0.3) × 1010 M⊙ of molecular gas,
K. Fogarty, M. Postman, Yuan Li, H. Dannerbauer, H. Liu, M. Donahue, B. Ziegler, A. Koekemoer, B. Frye   +8 more
semanticscholar   +1 more source

Stellar Mass Growth of Brightest Cluster Galaxy Progenitors in COSMOS Since z ∼ 3 [PDF]

Astrophysical Journal, 2019
We examine the role of environment on the in situ star formation (SF) hosted by the progenitors of the most massive galaxies in the present-day universe, the brightest cluster galaxies (BCGs), from z ∼ 3 to present in the COSMOS field.
K. Cooke, J. Kartaltepe, K. Tyler, B. Darvish, C. Casey, O. Fèvre, M. Salvato, N. Scoville   +7 more
semanticscholar   +1 more source

A radio halo surrounding the Brightest Cluster Galaxy in RXCJ0232.2–4420: a mini-halo in transition? [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2019
Diffuse radio sources associated with the intra-cluster medium are direct probes of the cosmic ray electrons and magnetic fields. We report the discovery of a diffuse radio source in the galaxy cluster RXCJ0232.2–4420 (SPT-CL J0232–4421, z = 0.2836 ...
R. Kale, Krishna M. Shende, V. Parekh
semanticscholar   +1 more source