Results 111 to 120 of about 1,986 (217)

Brightest Cluster Galaxies in the Local Universe: Mergers, Interactions and the Implications for Galaxy Evolution [PDF]

, 2022
Clusters of Galaxies are amongst the largest gravitationally bound structures in our Universe and consist of thousands of galaxies. It is in these gigantic systems where Brightest Cluster Galaxies (BCGs) are found, the most massive galaxies in our ...
Delley, Diane
core  

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

, 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.
Bremer, M., Combes, F., Russell, H., Baum, S. A., Edge, A.C., Fabian, A.C., Edge, A. C., Swinbank, A.M., Fabian, A. C., Oonk, J.B.R., O’Dea, C., Peck, A. B., Peck, A.B., Vantyghem, A., Sarazin, C.L, Ferland, G., Hamer, S., GASPARI, MASSIMO, McNamara, B.R., Rose, Tom, Voit, M., Mittal, R., Oonk, J. B. R., Salomé, P., Rose, T., Donahue, M., Sarazin, C., Swinbank, A. M., Tremblay, G.R., McNamara, B. R., Gaspari, M., O’dea, C, Nesvadba, N., Tremblay, G. R., O'Dea, C., Baum, S.A.   +35 more
core   +1 more source

Merger-induced disturbance and temporal signatures in galaxy clusters: A combined phase space and photometric analysis

Astronomy & Astrophysics
We present a physically interpretable framework to quantify dynamical disturbances in galaxy clusters using projected two-dimensional phase-space information.
Kong Chuiyang, Dell’Antonio Ian
doaj   +1 more source

Black hole mass estimates in brightest cluster galaxies [PDF]

, 2008
We present HST imaging and spectroscopic observations of three brightest cluster galaxies (BCGs), Abell 1836-BCG, Abell 2052-BCG, and Abell 3565-BCG, obtained with WFPC2, ACS, and STIS.
MIRALDA ESCUDÉ J., Dalla Bontà, E., PIZZELLA, ALESSANDRO, COCCATO L., Corsini, E., Miralda-Escudé, J., Pizzella, A., DALLA BONTA', ELENA, SARZI M., CORSINI, ENRICO MARIA, Coccato, L., Sarzi, M., Ferrarese, L., FERRARESE L.   +13 more
core  

Mapping dark matter in the Bullet Cluster using JWST imaging and spectroscopy

Astronomy & Astrophysics
Context. The Bullet Cluster (1E 0657–56), located at a redshift of 0.296, is among the best-known merging galaxy clusters and a key laboratory for dark matter studies.
Rihtaršič G., Bradač M., Desprez G., Harshan A., Martis N. S., Willott C. J., Asada Y., Sarrouh G. T. E., Cornil-Baïotto C., Biviano A., Clowe D., Gonzalez A. H., Jones C., Judež J., Kim S. Y., Lemaux B. C., Lombardi M., Marchesini D., Markevitch M., Markov V., Noirot G., Peter A. H. G., Randall S. W., Robertson A., Sawicki M., Tripodi R.   +25 more
doaj   +1 more source

Spectral Energy Distribution Fitting of Globular Clusters in NGC 4874: Masses and Metallicities

The Astrophysical Journal
In most nearby galaxies, photometry of the integrated light of their globular clusters (GCs) has been obtained in only two filters, yielding just a single color index.
Kate Hartman, William E. Harris, Jinoo Kim   +2 more
doaj   +1 more source

Chandra Observation of Abell 1142: A Cool-core Cluster Lacking a Central Brightest Cluster Galaxy? [PDF]

, 2016
Abell 1142 is a low-mass galaxy cluster at low redshift containing two comparable brightest cluster galaxies (BCGs) resembling a scaled-down version of the Coma Cluster.
Su, Yuanyuan, Buote, David A, Buote, David A., van Weeren, Reinout, GASTALDELLO, FABIO   +4 more
core   +1 more source

Agn In Brightest Cluster Galaxies

, 2018
We present a systematic investigation of the nuclear activity in Brighest Cluster Galaxies through cosmic epochs. By combining X-ray, Radio, optical and IR data, we constrain the origin of the feeding gas and the accretion regime, as well as the feedback processes affecting the surrounding Intra Cluster Medium and star formation events in the BCGs ...
openaire   +2 more sources

HI absorption associated to Norma's brightest cluster galaxy [PDF]

<b>External Organisations</b><br/>Commonwealth Scientific & Industrial Research Organisation; CSIRO - Australia Telescope National Facility<b>Associated Persons</b><br/>Baerbel Koribalski (Creator)Continuum and HI ...

core   +1 more source

Extended Radio Emission in the Perhipheral Regions of the Shapley Concentration Core

Galaxies, 2017
The Shapley Concentration (SC) is a galaxy supercluster (few tens of degrees) in the Local Universe (<z>∼0.048) which is currently undergoing cluster mergers and group accretion.
Tiziana Venturi, Sandro Bardelli, Daniele Dallacasa, Gabriella Di Gennaro, Fabio Gastaldello, Simona Giacintucci, Mariachiara Rossetti   +6 more
doaj   +1 more source