Results 11 to 20 of about 1,030,336 (214)

Brightest cluster galaxies as probes of galaxy formation

, 2016
Brightest group and cluster galaxies are the most massive galaxies in the Universe and reside at the centres of galaxy clusters. These galaxies push galaxy formation and evolution models to their limits, providing a strong test to our current paradigm of
Paola Cecilia Oliva-Altamirano (19117903)
core   +2 more sources

Euclid: A blue galaxy population and a brightest cluster galaxy in the making in a z ∼ 1.74 MaDCoWS2 galaxy cluster candidate★

Astronomy & Astrophysics
We present an example cluster follow-up study with Euclid. Our target, a z ∼ 1.74 candidate cluster nicknamed the ‘Puddle’, was initially discovered by the Massive and Distant Clusters of WISE Survey 2 as a zphot ∼ 1.65 candidate cluster.
Trudeau A., Gonzalez A. H., Stanford S. A., Shamyati S., Taamoli S., Stern D., Eisenhardt P. R. M., Mobasher B., Thongkham K., Altieri B., Andreon S., Baccigalupi C., Baldi M., Balestra A., Bardelli S., Biviano A., Branchini E., Brescia M., Camera S., Cañas-Herrera G., Capobianco V., Carbone C., Carretero J., Casas S., Castellano M., Castignani G., Cavuoti S., Chambers K. C., Cimatti A., Colodro-Conde C., Congedo G., Conselice C. J., Conversi L., Copin Y., Courbin F., Courtois H. M., Cropper M., Da Silva A., Degaudenzi H., De Lucia G., Dole H., Douspis M., Dubath F., Duncan C. A. J., Dupac X., Dusini S., Escoffier S., Fabricius M., Farina M., Faustini F., Ferriol S., Finelli F., Frailis M., Franceschi E., Fumana M., Galeotta S., George K., Gillis B., Giocoli C., Gracia-Carpio J., Grazian A., Grupp F., Haugan S. V. H., Holmes W., Hormuth F., Hornstrup A., Jahnke K., Jhabvala M., Joachimi B., Keihänen E., Kermiche S., Kilbinger M., Kubik B., Kümmel M., Kunz M., Kurki-Suonio H., Le Brun A. M. C., Le Mignant D., Ligori S., Lilje P. B., Lindholm V., Lloro I., Mainetti G., Maino D., Maiorano E., Mansutti O., Marggraf O., Martinelli M., Martinet N., Marulli F., Massey R. J., Maurogordato S., Medinaceli E., Mei S., Mellier Y., Meneghetti M., Merlin E., Meylan G., Mora A., Moscardini L., Munari E., Nakajima R., Neissner C., Niemi S.-M., Padilla C., Paltani S., Pasian F., Pedersen K., Percival W. J., Pettorino V., Pires S., Polenta G., Poncet M., Popa L. A., Pozzetti L., Raison F., Renzi A., Rhodes J., Riccio G., Romelli E., Roncarelli M., Saglia R., Sakr Z., Sapone D., Sartoris B., Schneider P., Schrabback T., Secroun A., Seidel G., Serrano S., Sirignano C., Sirri G., Stanco L., Steinwagner J., Tallada-Crespí P., Taylor A. N., Teplitz H. I., Tereno I., Tessore N., Toft S., Toledo-Moreo R., Torradeflot F., Tutusaus I., Valenziano L., Valiviita J., Vassallo T., Wang Y., Weller J., Zamorani G., Zerbi F. M., Zucca E., García-Bellido J., Maturi M., Scottez V., Sereno M.   +154 more
doaj   +3 more sources

LoVoCCS. II. Weak Lensing Mass Distributions, Red-sequence Galaxy Distributions, and Their Alignment with the Brightest Cluster Galaxy in 58 Nearby X-Ray-luminous Galaxy Clusters

The Astrophysical Journal
The Local Volume Complete Cluster Survey is an ongoing program to observe nearly a hundred low-redshift X-ray-luminous galaxy clusters (redshifts 0.03 < z < 0.12 and X-ray luminosities in the 0.1–2.4 keV band L _X500c > 10 ^44 erg s ^−1 ) with the Dark ...
Shenming Fu, Ian Dell’Antonio, Zacharias Escalante, Jessica Nelson, Anthony Englert, Søren Helhoski, Rahul Shinde, Julia Brockland, Philip LaDuca, Christelyn Larkin, Lucca Paris, Shane Weiner, William K. Black, Ranga-Ram Chary, Douglas Clowe, M. C. Cooper, Megan Donahue, August Evrard, Mark Lacy, Tod Lauer, Binyang Liu, Jacqueline McCleary, Massimo Meneghetti, Hironao Miyatake, Mireia Montes, Priyamvada Natarajan, Michelle Ntampaka, Elena Pierpaoli, Marc Postman, Jubee Sohn, David Turner, Keiichi Umetsu, Yousuke Utsumi, Gillian Wilson   +33 more
doaj   +2 more sources

The Emergence of a Brightest Cluster Galaxy in a Protocluster Core at z = 2.24

The Astrophysical Journal
We report the detection of a pair of massive quiescent galaxies likely in the process of merging at the center of the spectroscopically confirmed, extremely massive protocluster BOSS1244 at z = 2.24 ± 0.02.
Dong Dong Shi, Xin Wang, Xian Zhong Zheng, Zheng Cai, Xiaohui Fan, Fuyan Bian, Harry I. Teplitz   +6 more
doaj   +2 more sources

Galaxy-Galaxy weak gravitational lensing in cluster environment [PDF]

, 2012
An investigation was carried out into the phenomenon of galaxy-galaxy weak lensing in a sample of 10 X-ray selected galaxy clusters. Using high resolution Hubble Space Telescope imaging data and mathematical techniques described within, the feasibility ...
James, Timothy, John
core   +7 more sources

Intrinsic Shapes of Brightest Cluster Galaxies

The Astrophysical Journal, 2022
Abstract We discuss the statistical distribution of galaxy shapes and viewing angles under the assumption of triaxiality by deprojecting observed surface brightness profiles of 56 brightest cluster galaxies (BCGs) coming from a recently published large deep-photometry sample.
Stefano de Nicola, Roberto P. Saglia, Jens Thomas, Claudia Pulsoni, Matthias Kluge, Ralf Bender, Lucas M. Valenzuela, Rhea-Silvia Remus   +7 more
openaire   +3 more sources

Brightest cluster galaxies: the centre can(not?) hold [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
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).
Roberto De Propris, Michael J West, Felipe Andrade-Santos, Cinthia Ragone-Figueroa, Elena Rasia, William Forman, Christine Jones, Rain Kipper, Stefano Borgani, Diego García Lambas, Elena A Romashkova, Kishore C Patra   +11 more
openaire   +4 more sources

Alignment of brightest cluster galaxies with their host clusters [PDF]

Monthly Notices of the Royal Astronomical Society, 2010
15 pages, 12 Figures, 10 Tables, Accepted for publication in ...
Niederste-Ostholt, Martin, Strauss, Michael A., Dong, Feng, Koester, Benjamin P., Mckay, Timothy A.   +4 more
openaire   +3 more sources

THE LUMINOSITY PROFILES OF BRIGHTEST CLUSTER GALAXIES [PDF]

The Astrophysical Journal Supplement Series, 2011
(Abridged) We have derived detailed R band luminosity profiles and structural parameters for a total of 430 brightest cluster galaxies (BCGs), down to a limiting surface brightness of 24.5 mag/arcsec^2. Light profiles were initially fitted with a Sersic's R^(1/n) model, but we found that 205 (~48) BCGs require a double component model to accurately ...
Donzelli, C. J., Muriel, H., Madrid, J. P.   +2 more
openaire   +4 more sources

BRIGHTEST CLUSTER GALAXIES AT THE PRESENT EPOCH [PDF]

The Astrophysical Journal, 2014
Accepted for publication in the Astrophysical ...
Tod R. Lauer, Marc Postman, Michael A. Strauss, Genevieve J. Graves, Nora E. Chisari   +4 more
openaire   +4 more sources