Results 121 to 130 of about 2,500,510 (339)

The sizes of galaxy halos in galaxy cluster Abell 1689

, 2006
The multiple images observed in galaxy cluster Abell 1689 provide strong constraints not only on the mass distribution of the cluster but also on the ensemble properties of the cluster galaxies. Using parametric strong lensing models for the cluster, and
A. Halkola, Battaglia G., Bender R., M. Pannella, Natarajan P., S. Seitz   +5 more
core   +1 more source

MHD SIMULATIONS OF ACTIVE GALACTIC NUCLEUS JETS IN A DYNAMIC GALAXY CLUSTER MEDIUM [PDF]

, 2012
We present a pair of three-dimensional magnetohydrodynamical simulations of intermittent jets from a central active galactic nucleus (AGN) in a galaxy cluster extracted from a high-resolution cosmological simulation. The selected cluster was chosen as an
P. Mendygral, T. Jones, K. Dolag
semanticscholar   +1 more source

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

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   +1 more source

REDSHIFTS, SAMPLE PURITY, AND BCG POSITIONS FOR THE GALAXY CLUSTER CATALOG FROM THE FIRST 720 SQUARE DEGREES OF THE SOUTH POLE TELESCOPE SURVEY [PDF]

, 2012
We present the results of the ground- and space-based optical and near-infrared (NIR) follow-up of 224 galaxy cluster candidates detected with the Sunyaev–Zel'dovich (SZ) effect in the 720 deg2 of the South Pole Telescope (SPT) survey completed in the ...
J. Song, A. Zenteno, B. Stalder, S. Desai, L. Bleem, K. Aird, R. Armstrong, M. Ashby, M. Bayliss, G. Bazin, B. Benson, E. Bertin, M. Brodwin, J. Carlstrom, C. Chang, C. Chang, Hsiao-mei Cho, A. Clocchiatti, T. Crawford, A. Crites, T. Haan, M. Dobbs, J. Dudley, R. Foley, E. George, D. Gettings, M. Gladders, Anthony H. Gonzalez, N. Halverson, N. Harrington, F. W. High, G. Holder, W. Holzapfel, S. Hoover, J. Hrubeš, M. Joy, R. Keisler, L. Knox, Adrian T. Lee, Adrian T. Lee, E. Leitch, J. Liu, M. Lueker, M. Lueker, D. Luong-Van, D. Marrone, M. McDonald, J. McMahon, J. Mehl, S. Meyer, L. Mocanu, J. J. Mohr, T. Montroy, T. Natoli, D. Nurgaliev, S. Padin, S. Padin, T. Plagge, C. Pryke, C. Reichardt, A. Rest, J. Ruel, J. Ruhl, B. Saliwanchik, A. Saro, J. Sayre, K. Schaffer, K. Schaffer, L. Shaw, L. Shaw, E. Shirokoff, E. Shirokoff, R. Suhada, H. Spieler, S. Stanford, S. Stanford, Z. Staniszewski, A. Stark, K. Story, C. Stubbs, A. V. Engelen, K. Vanderlinde, J. Vieira, J. Vieira, R. Williamson, O. Zahn   +85 more
semanticscholar   +1 more source

Cosmology with Clusters of Galaxies [PDF]

Particle Physics and the Universe, 2000
I show that three independent methods utilizing clusters of galaxies - cluster dynamics and mass-to-light ratio, baryon fraction in clusters, and cluster evolution - all indicate the same robust result: the mass-density of the universe is low, Omega ~ 0.2, and the mass approximately traces light on large scales.
openaire   +4 more sources

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

Systems Research and Behavioral Science, EarlyView.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

A New Algorithm for the Detection of Inter-cluster Galaxy Filaments using Galaxy Orientation Alignments

, 2005
We present a new algorithm to detect inter-cluster galaxy filaments based upon the assumption that the orientations of constituent galaxies along such filaments are non-isotropic.
Arias-Castro, Arnaud, Aubert, Balogh, Bharadwaj, Bharadwaj, Binggeli, Bond, Briel, Cabanela, Carter, Cen, Colberg, Colberg, Colberg, Colless, Connolly, Connolly, Coutts, Cross, De Propris, Dietrich, Doroshkevich, Doroshkevich, Dubinski, Durret, Ebeling, Faltenbacher, Fukugita, Fuller, Gal, Gott, Gray, Gómez, Hatton, Hikage, Hopkins, Hoyle, Hoyle, Jenkins, Katz, Kevin A. Pimbblet, Kitzbichler, Knebe, Kodama, Kraan-Korteweg, Kull, Lambas, Lee, Lewis, Mackey, Maddox, Maddox, Madgwick, Mecke, Novikov, Pandey, Peebles, Pierre, Pimbblet, Pimbblet, Pimbblet, Pimbblet, Pimbblet, Plionis, Plionis, Plionis, Quinn, Sahni, Scharf, Shandarin, Sheth, Splinter, Stoica, Struble, Struble, Szapudi, Tegmark, Tormen, van Haarlem, West, West, West, West, Zeldovich   +84 more
core   +2 more sources

Cosmology with X-RAY galaxy cluster surveys ? [PDF]

, 2022
M. Pierre
openalex   +1 more source

X-ray observations of the galaxy cluster Abell 2029 to the virial radius [PDF]

, 2012
We present Suzaku observations of the galaxy cluster Abell 2029, which exploit Suzaku’s low particle background to probe the intracluster medium at radii beyond that which is possible with previous observations, and with better azimuthal coverage.
S. Walker, A. Fabian, Jeremy S. Sanders, M. George, Y. Tawara   +4 more
semanticscholar   +1 more source