scholarly journals Excitation mechanisms in the intracluster filaments surrounding brightest cluster galaxies

2021 ◽  
Author(s):  
F. L. Polles ◽  
P. Salomé ◽  
P. Guillard ◽  
B. Godard ◽  
G. Pineau des Forêts ◽  
...  
Keyword(s):  
Cluster Galaxies ◽  
Brightest Cluster Galaxies ◽  
Excitation Mechanisms

scholarly journals Brightest cluster galaxies: the centre can(not?) hold

2020 ◽  
Vol 500 (1) ◽  
pp. 310-318
Author(s):  
Roberto De Propris ◽  
Michael J West ◽  
Felipe Andrade-Santos ◽  
Cinthia Ragone-Figueroa ◽  
Elena Rasia ◽  
...  
Keyword(s):  
Dark Matter ◽  
Local Environment ◽  
Major Axis ◽  
Theoretical Models ◽  
Dark Matter Halo ◽  
Gas Distribution ◽  
X Ray ◽  
Cluster Galaxies ◽  
Peculiar Velocities ◽  
Brightest Cluster Galaxies

ABSTRACT We explore the persistence of the alignment of brightest cluster galaxies (BCGs) with their local environment. We find that a significant fraction of BCGs do not coincide with the centroid of the X-ray gas distribution and/or show peculiar velocities (they are not at rest with respect to the cluster mean). Despite this, we find that BCGs are generally aligned with the cluster mass distribution even when they have significant offsets from the X-ray centre and significant peculiar velocities. The large offsets are not consistent with simple theoretical models. To account for these observations BCGs must undergo mergers preferentially along their major axis, the main infall direction. Such BCGs may be oscillating within the cluster potential after having been displaced by mergers or collisions, or the dark matter halo itself may not yet be relaxed.

scholarly journals Excitation mechanism in the intracluster filaments surrounding the Brightest Cluster Galaxies

2019 ◽  
Vol 15 (S359) ◽  
pp. 185-187
Author(s):  
Fiorella L. Polles
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Elliptical Galaxies ◽  
Cluster Galaxies ◽  
Cooling Flow ◽  
Submillimeter Wavelengths ◽  
Hot Plasma ◽  
Brightest Cluster Galaxies ◽  
Multi Phase ◽  
The Impact

AbstractMulti-phase filamentary structures surrounding giant elliptical galaxies at the center of cool-core clusters, the Brightest Cluster Galaxies (BCGs), have been detected from optical to submillimeter wavelengths. The source of the ionisation in the filaments is still debated. Studying the excitation of these structures is key to our understanding of Active Galactic Nuclei (AGN) feedback in general, and more precisely of the impact of environmental and local effects on star formation. One possible contributor to the excitation of the filaments is the thermal radiation from the cooling of the hot plasma surrounding the BCGs, the so-called cooling flow.

scholarly journals Radial gradients in initial mass function sensitive absorption features in the Coma brightest cluster galaxies

2016 ◽  
Vol 465 (1) ◽  
pp. 192-212 ◽  
Author(s):  
Simon Zieleniewski ◽  
Ryan C. W. Houghton ◽  
Niranjan Thatte ◽  
Roger L. Davies ◽  
Sam P. Vaughan
Keyword(s):  
Mass Function ◽  
Initial Mass Function ◽  
Initial Mass ◽  
Cluster Galaxies ◽  
Brightest Cluster Galaxies ◽  
Absorption Features

scholarly journals The Angular Momentum of Brightest Cluster Galaxies

2012 ◽  
Vol 8 (S295) ◽  
pp. 229-229
Author(s):  
S. Brough ◽  
K.-V. Tran ◽  
A. von der Linden
Keyword(s):  
Angular Momentum ◽  
Cluster Galaxies ◽  
Angular Momenta ◽  
Brightest Cluster Galaxies

AbstractMassive Brightest Cluster Galaxies (BCGs) are observed to have a range of angular momenta, suggesting a variety of merging histories.

scholarly journals DYNAMICAL MEASUREMENTS OF BLACK HOLE MASSES IN FOUR BRIGHTEST CLUSTER GALAXIES AT 100 Mpc

2012 ◽  
Vol 756 (2) ◽  
pp. 179 ◽  
Author(s):  
Nicholas J. McConnell ◽  
Chung-Pei Ma ◽  
Jeremy D. Murphy ◽  
Karl Gebhardt ◽  
Tod R. Lauer ◽  
...  
Keyword(s):  
Black Hole ◽  
Cluster Galaxies ◽  
Brightest Cluster Galaxies ◽  
Black Hole Masses

scholarly journals GLOBULAR CLUSTER SYSTEMS IN BRIGHTEST CLUSTER GALAXIES. II. NGC 6166

2016 ◽  
Vol 817 (1) ◽  
pp. 58 ◽  
Author(s):  
William E. Harris ◽  
John P. Blakeslee ◽  
Bradley C. Whitmore ◽  
Oleg Y. Gnedin ◽  
Douglas Geisler ◽  
...  
Keyword(s):  
Globular Cluster ◽  
Cluster Systems ◽  
Cluster Galaxies ◽  
Brightest Cluster Galaxies

Mass Estimations of Supermassive Black Holes in Brightest Cluster Galaxies

2009 ◽  
pp. 255-257
Author(s):  
Elena Dalla Bontà ◽  
Laura Ferrarese ◽  
Enrico Maria Corsini ◽  
Jordi Miralda-Escudé ◽  
Lodovico Coccato ◽  
...  
Keyword(s):  
Black Holes ◽  
Supermassive Black Holes ◽  
Cluster Galaxies ◽  
Brightest Cluster Galaxies
Sign in / Sign up

Export Citation Format

Share Document