Results 61 to 70 of about 2,492,889 (299)

Targeting cluster galaxies for the 4MOST CHANCES Low-z sub-survey with photometric redshifts

Astronomy & Astrophysics
Context. The evolution of galaxies is shaped by both internal processes and their external environments. Galaxy clusters and their surroundings provide ideal laboratories to study these effects, particularly with respect to mechanisms such as quenching ...
Méndez-Hernández Hugo, Lima-Dias Ciria, Monachesi Antonela, Jaffé Yara L., Haines Christopher P., Teixeira Gabriel S. M., Lösch Elismar, Baier-Soto Raúl, Lima Erik V. R., Amrutha B. M., Bom C. R., D’Ago Giuseppe, Demarco Ricardo, Finoguenov Alexis, Haack Rodrigo F., Lopes Amanda R., de Oliveira C. Mendes, Merluzzi Paola, Piraino-Cerda Franco, Smith Castelli Analía V., Sifón Cristobal, Sodré Laerte, Tejos Nicolás, Torres-Flores Sergio, Argudo-Fernández Maria, Crossett Jacob P., Ibar E., Kuchner Ulrike, Lacerna Ivan, Lopes-Silva Vitor H., Lopez Sebastián, McGee Sean, Morelli Lorenzo, Nantais Julie, Olivares V. Patricio, Pallero Diego, Poggianti Bianca M., Pompei Emanuela, Sampaio V. M., Vulcani Benedetta, Zenteno Alfredo, Almeida-Fernandes F., Bilicki Maciej, Carvalho M. S., Cheng Cheng, Figueiredo A. L.,, Gutiérrez-Soto L. A., Herpich F. R., Kanaan A., Lacerda E A. D., Nakazono L., Oliveira Schwarz G. B., Ribeiro T., Roukema Boudewijn F., Sartori Marília J., Santos-Silva Thaís, Schoenell W.   +56 more
doaj   +1 more source

Internal dynamics of the galaxy cluster Abell 545

, 2011
Diffuse radio emission in galaxy clusters, and their connection with cluster mergers, are still debated. We seek to explore the internal dynamics of the radio halo cluster Abell 545.
Abell, Anders, Ashman, Bacchi, Bardelli, Barrena, Barrena, Barrena, Beers, Beers, Beers, Beers, Beers, Bekki, Bell, Bertin, Binggelli, Bird, Biviano, Bonafede, Boschin, Boschin, Boschin, Boschin, Brunetti, Bullock, Buote, Buote, Böhringer, Carlberg, Cassano, Cassano, Cassano, Cassano, Cassano, Cavaliere, Chilingarian, Chilingarian, D. Eckert, Danese, David, den Hartog, Dolag, Dolag, Donnert, Dressler, Dubinsky, Ellingson, Ensslin, Ensslin, Ensslin, Fadda, Fasano, Ferrari, Ferrari, Ferrari, Finoguenov, Fukugita, Giovannini, Giovannini, Girardi, Girardi, Girardi, Girardi, Girardi, Girardi, Goto, Govoni, Hashimoto, Henriksen, Henry, Hoeft, Kalberla, Kennicutt, Kneib, Landolt, Leccardi, Leccardi, Limber, Lin, Liu, Loeb, M. Girardi, M. Rossetti, Malumuth, Markevitch, Markevitch, Mastropietro, Menci, Merritt, Million, Mushotzky, Navarro, Niederste-Ostholt, Nieto, Okabe, Owers, Pinkney, Pisani, Pisani, Quintana, R. Barrena, Ramella, Ramella, Ricker, Rines, Roettiger, Roettiger, Roettiger, Rossetti, Rudick, S. De Grandi, Salinas, Salinas, Sarazin, Sastry, Schlegel, Schneider, Springel, Struble, Struble, The, Tonry, Tribble, van Dokkum, W. Boschin, Wainer, West, White   +128 more
core   +1 more source

The reversal of the SF–density relation in a massive, X-ray-selected galaxy cluster at z = 1.58: results from Herschel [PDF]

, 2014
Dusty, star-forming galaxies have a critical role in the formation and evolution of massive galaxies in the Universe. Using deep far-infrared imaging in the range 100-500um obtained with the Herschel telescope, we investigate the dust-obscured star ...
Joana S. Santos . Bruno Altieri, I. Valtchanov, A. Nastasi, H. Bohringer, G. Cresci, D. Elbaz, R. Fassbender, P. Rosati, P. Tozzi, M. Verdugo   +9 more
semanticscholar   +1 more source

Constructing a Galaxy Cluster Catalog in IllustrisTNG300 Using the Mulguisin Algorithm

The Astrophysical Journal
We present a new simulated galaxy cluster catalog based on the IllustrisTNG simulation. We use the Mulguisin (MGS) algorithm to identify galaxy overdensities.
Lael Shin, Jubee Sohn, Young Ju, Inkyu Park, Cristiano G. Sabiu   +4 more
doaj   +1 more source

Infalling groups and galaxy transformations in the cluster A2142

, 2017
We study galaxy populations and search for possible merging substructures in the rich galaxy cluster A2142. Normal mixture modelling revealed in A2142 several infalling galaxy groups and subclusters.
Deshev, Boris, Einasto, Jaan, Einasto, Maret, Gramann, Mirt, Heinämäki, Pekka, Kipper, Rain, Lietzen, Heidi, Park, Changbom, Saar, Enn, Tempel, Elmo   +9 more
core   +1 more source

Globular cluster population of the HST frontier fields galaxy J07173724+3744224 [PDF]

, 2018
We present the first measurement of the globular cluster population surrounding the elliptical galaxy J07173724+3744224 (z=0.1546). This galaxy is located in the foreground in the field-of-view of the Hubble Space Telescope (HST) Frontier Fields ...
Barkhouse, Wayne A., Carlson, Nathan L., Gamage, Gihan L. Ipita Kaduwa, Lopez-Cruz, Omar, Rude, Cody M., Sultanova, Madina R., Vithanage, Sandanuwan P. Kalawila   +6 more
core   +3 more sources

EVIDENCE FOR PARTICLE RE-ACCELERATION IN THE RADIO RELIC IN THE GALAXY CLUSTER PLCKG287.0+32.9 [PDF]

, 2014
Radio relics are diffuse radio sources observed in galaxy clusters, probably produced by shock acceleration during cluster–cluster mergers. Their large size, of the order of 1 Mpc, indicates that the emitting electrons need to be (re)accelerated locally.
A. Bonafede, H. Intema, M. Brüggen, M. Girardi, M. Girardi, M. Nonino, N. Kantharia, R. Weeren, H. Röttgering   +8 more
semanticscholar   +1 more source

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

Advanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho, Seoyeon Park, Youngmin Lee, Sejoon Lee   +3 more
wiley   +1 more source

Clustering of Submillimetre-Selected Galaxies [PDF]

The Astrophysical Journal, 2004
Using accurate positions from very deep radio observations to guide multi-object Keck spectroscopy, we have determined a substantially complete redshift distribution for very luminous, distant submillimeter(submm)-selected galaxies (SMGs). A sample of 73 redshifts for SMGs in 7 fields contains a surprisingly large number of `associations': systems of ...
Blain, Andrew W., Chapman, Scott S., Smail, Ian, Ivison, Rob   +3 more
openaire   +2 more sources

COSMIC: A Galaxy Cluster–Finding Algorithm Using Machine Learning

The Astrophysical Journal Supplement Series
Building a comprehensive catalog of galaxy clusters is a fundamental task for studies on structure formation and galaxy evolution. In this paper, we present Cluster Optical Search using Machine Intelligence in Catalogs (COSMIC), an algorithm utilizing ...
Da-Chuan Tian, Yang Yang, Zhong-Lue Wen, Jun-Qing Xia   +3 more
doaj   +1 more source