Results 101 to 110 of about 2,250,218 (355)

SPT-CL J2040−4451: AN SZ-SELECTED GALAXY CLUSTER AT z = 1.478 WITH SIGNIFICANT ONGOING STAR FORMATION [PDF]

, 2013
SPT-CL J2040−4451—spectroscopically confirmed at z = 1.478—is the highest-redshift galaxy cluster yet discovered via the Sunyaev–Zel'dovich effect.
M. Bayliss, M. Ashby, J. Ruel, M. Brodwin, K. Aird, M. Bautz, B. Benson, L. Bleem, L. Bleem, S. Bocquet, J. Carlstrom, C. Chang, C. Chang, H. Cho, A. Clocchiatti, T. Crawford, A. Crites, S. Desai, M. Dobbs, J. Dudley, R. Foley, R. Foley, W. Forman, E. George, D. Gettings, M. Gladders, Anthony H. Gonzalez, T. Haan, N. Halverson, F. W. High, G. Holder, W. Holzapfel, S. Hoover, J. Hrubeš, C. Jones, M. Joy, R. Keisler, L. Knox, Adrian T. Lee, Adrian T. Lee, E. Leitch, Jiayi Liu, M. Lueker, M. Lueker, D. Luong-Van, A. Mantz, D. Marrone, K. Mawatari, M. McDonald, J. McMahon, J. Mehl, J. Mehl, S. Meyer, E. Miller, L. Mocanu, J. Mohr, T. Montroy, S. Murray, S. Padin, S. Padin, T. Plagge, C. Pryke, C. Reichardt, A. Rest, J. Ruhl, B. Saliwanchik, A. Saro, J. Sayre, K. Schaffer, K. Schaffer, E. Shirokoff, E. Shirokoff, J. Song, B. Stalder, R. Suhada, H. Spieler, S. Stanford, S. Stanford, Z. Staniszewski, A. Stark, K. Story, C. Stubbs, A. V. Engelen, K. Vanderlinde, J. Vieira, A. Vikhlinin, R. Williamson, O. Zahn, A. Zenteno   +88 more
semanticscholar   +1 more source

Multitarget Recognition of Flower Images Based on Lightweight Deep Neural Network and Transfer Learning

Advanced Intelligent Systems, EarlyView.
This article proposes a lightweight YOLOv4‐based detection model using MobileNetV3 or CSPDarknet53_tiny, achieving 30+ FPS and higher mAP. It also presents a ShuffleNet‐based classification model with transfer learning and GAN‐augmented images, improving generalization and accuracy.
Qingyang Liu, Yanrong Hu, Hongjiu Liu
wiley   +1 more source

Selecting Clusters and Protoclusters via Stellar Mass Density. I. Method and Tests on Mock HSC-SSP Catalogs

The Astrophysical Journal
We present an algorithm designed to identify galaxy (proto)clusters in wide-area photometric surveys by first selecting their dominant galaxy—i.e., the brightest cluster galaxy (BCG) or protoBCG—through the local stellar mass density traced by massive ...
Marcelo C. Vicentin, Pablo Araya-Araya, Laerte Sodré Jr., Michael A. Strauss   +3 more
doaj   +1 more source

Simulations of the merging galaxy cluster Abell 3376 [PDF]

, 2013
Observed galaxy clusters often exhibit X-ray morphologies suggestive of recent interaction with an infalling subcluster. Abell 3376 is a nearby (z=0.046) massive galaxy cluster whose bullet-shaped X-ray emission indicates that it may have undergone a ...
R. E. G. Machado, G. L. Neto
semanticscholar   +1 more source

The Rotation of Galaxy Clusters [PDF]

Astrophysics, 2015
6 pages, 17 ...
openaire   +4 more sources

Usage of the term provenance in LIS literature: An Annual Review of Information Science and Technology (ARIST) paper

Journal of the Association for Information Science and Technology, EarlyView.
Abstract Provenance is the story of how something has come to be. In this paper, we provide a systematic literature review to categorize the various notions of provenance in Information Sciences. The goal of this review is to paint a broader picture of the multiple uses of provenance at play and to enhance our understanding of the importance of ...
Rhiannon Bettivia, Yi‐Yun Cheng, Michael R. Gryk   +2 more
wiley   +1 more source

A SYSTEMATIC ANALYSIS OF CAUSTIC METHODS FOR GALAXY CLUSTER MASSES [PDF]

, 2013
We quantify the expected observed statistical and systematic uncertainties of the escape velocity as a measure of the gravitational potential and total mass of galaxy clusters.
D. Gifford, C. Miller, N. Kern
semanticscholar   +1 more source

Evolution of galaxies in clusters

The Astrophysical Journal, 1994
33 pages, normal ...
Joseph Silk, Stephane Charlot
openaire   +4 more sources

New Arabic Records From Cairo on Supernovae 1181 and 1006

Astronomische Nachrichten, EarlyView.
ABSTRACT The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000–5000 year), the unusual star IRAS00500+6713 with a surrounding nebula (Pa‐30) has an expansion age not inconsistent with a SN Iax explosion in ad 1181 under the assumption that neither acceleration nor ...
J. G. Fischer, H. Halm, R. Neuhäuser, D. L. Neuhäuser   +3 more
wiley   +1 more source

Galaxy Cluster Correlation Function to z ~ 1.5 in the IRAC Shallow Cluster Survey [PDF]

, 2007
We present the galaxy cluster autocorrelation function of 277 galaxy cluster candidates with 0.25 \le z \le 1.5 in a 7 deg^2 area of the IRAC Shallow Cluster Survey.
A. H. Gonzalez, Croft R. A. C., D. Stern, L. A. Moustakas, Lee S., M. Brodwin, M. J. I. Brown, P. R. Eisenhardt, Peacock J. A., S. A. Stanford   +9 more
core   +1 more source