Results 101 to 110 of about 12,566,242 (368)

Observational Evidence for an Age Dependence of Halo Bias

, 2006
We study the dependence of the cross-correlation between galaxies and galaxy groups on group properties. Confirming previous results, we find that the correlation strength is stronger for more massive groups, in good agreement with the expected mass ...
Frank C. van den Bosch, Gao L., H. J. Mo, Mo H. J., Weinmann S. M., Xiaohu Yang   +5 more
core   +2 more sources

Galaxy groups in the 2dF Galaxy Redshift Survey: a compactness analysis of groups [PDF]

Monthly Notices of the Royal Astronomical Society, 2003
A comprehensive study on compactness has been carried out on the 2dF Galaxy Group Catalogue constructed by Merch n & Zandivarez. The compactness indexes defined in this work take into account different geometrical constraints in order to explore a wide range of possibilities.
C. J. Ragone, Héctor J. Martínez, Mariano Dominguez, Hernán Muriel, Ariel Zandivarez   +4 more
openaire   +4 more sources

Proton Acceleration with Relativistic Electromagnetic Shock

Advanced Science, EarlyView.
New Ion Acceleration Mechanism! A novel cosmic‐ray proton acceleration mechanism is proposed, where relativistic electromagnetic shocks accelerate protons transversely. Hamiltonian analysis yields a scaling law linking the proton energy to the minimum longitudinal thickness of the shock.
Ting Xiao, Xiaomei Zhang, Fanqiu Kong, Xiaolong Zheng, Zheng Gong, Baifei Shen   +5 more
wiley   +1 more source

Mining the gap: evolution of the magnitude gap in X-ray galaxy groups from the 3-square-degree XMM coverage of CFHTLS [PDF]

, 2014
We present a catalog of 129 X-ray galaxy groups, covering a redshift range 0.04 \textless z \textless 1.23, selected in the similar to 3 deg(2) part of the CFHTLS W1 field overlapping XMM observations performed under the XMM-LSS project.
G. Gozaliasl, G. Gozaliasl, G. Gozaliasl, A. Finoguenov, H. Khosroshahi, M. Mirkazemi, M. Salvato, D. Jassur, G. Erfanianfar, P. Popesso, Masayuki Tanaka, M. Lerchster, J. Kneib, H. McCracken, Y. Mellier, E. Egami, M. Pereira, F. Brimioulle, T. Erben, Stella Seitz   +19 more
semanticscholar   +1 more source

The DEEP2 Galaxy Redshift Survey: Clustering of Groups and Group Galaxies at z~1

, 2005
We study the clustering properties of groups and of galaxies in groups in the DEEP2 Galaxy Redshift Survey dataset at z~1. Four clustering measures are presented: 1) the group correlation function for 460 groups with estimated velocity dispersions of ...
Alison L. Coil, Barnes J., Brian F. Gerke, Chung‐Pei Ma, David C. Koo, Fisher K. B., Girardi M., Jeffrey A. Newman, Jing Y., Marc Davis, Michael C. Cooper, Ostriker J. P., Puragra Guhathakurta, Renbin Yan, S. M. Faber   +14 more
core   +1 more source

Wireless Technologies for Wearable Electronics: A Review

Advanced Electronic Materials, EarlyView.
This review discusses recent advancements in wireless wearable electronics, focusing on communication technologies and power solutions. It covers key design considerations, explores wireless protocols from short‐ to long‐range networks, and examines powering methods such as integrated sources and energy harvesting.
Choong Yeon Kim, Juhyun Lee, Eun Young Jeong, Yeji Jang, Heesoo Kim, Bohyung Choi, Donggi Han, Youngjun Oh, Jae‐Woong Jeong   +8 more
wiley   +1 more source

Intracluster medium cooling, AGN feedback, and brightest cluster galaxy properties of galaxy groups - Five properties where groups differ from clusters [PDF]

, 2014
Aims. We aim to investigate cool-core and non-cool-core properties of galaxy groups through X-ray data and compare them to the AGN radio output to understand the network of intracluster medium (ICM) cooling and feedback by supermassive black holes.
V. Bharadwaj, T. Reiprich, G. Schellenberger, H. Eckmiller, R. Mittal, Holger Israel   +5 more
semanticscholar   +1 more source

IGM heating in fossil galaxy groups [PDF]

Monthly notices of the Royal Astronomical Society, 2014
We study intergalactic medium (IGM) heating in a sample of five fossil galaxy groups by using their radio properties at 610 MHz and 1.4 GHz. The power by radio jets introducing mechanical heating for the sampled objects is not sufficient enough to ...
H. Miraghaei, H. Khosroshahi, H. Klockner, T. Ponman, N. Jetha, Somak Raychaudhury   +5 more
semanticscholar   +1 more source

Hot Gas in Galaxy Groups: Recent Observations

, 2012
Galaxy groups are the least massive systems where the bulk of baryons begin to be accounted for. Not simply the scaled-down versions of rich clusters following self-similar relations, galaxy groups are ideal systems to study baryon physics, which is ...
Baumgartner W H, Bower R G, Buote D A, Buote D A, Burenin R A, Bîrzan L, Cavagnolo K W, Cavagnolo K W, Cavagnolo K W, Dai X, Diehl S, Dunkley J, Dunn R J H, Eckert D, Finoguenov A, Finoguenov A, Freeland E, Fukazawa T, Gastaldello F, Giodini S, Gitti M, Gonzalez A H, Helsdon S F, Humphrey P J, Humphrey P J, Humphrey P J, Koester B P, Komatsu E, Komiyama M, Leauthaud A, Leauthaud A, Lin Y T, Lin Y T, Lueker M, M Sun, Mahdavi A, Maughan B J, McCarthy I G, McDonald M, McNamara B R, Motl P M, Mulchaey J S, Murakami H, Nagai D, O'Hara T B, O'Sullivan E, Puchwein E, Rafferty D A, Randall S W, Rasia E, Rasmussen J, Reichardt C L, Renzini A, Rozo E, Rozo E, Rykoff E S, Sato K, Sehgal N, Shaw L D, Shirokoff E, Sun M, Sun M, Sun M, Sun M, Sun M, Tonry J L, Trac H, Vikhlinin A, Vikhlinin A, Vikhlinin A, von der Linden A, Wetzel A R Tinker J L Conroy C   +71 more
core   +1 more source

A Review of Ga₂O₃ Heterojunctions for Deep‐UV Photodetection: Current Progress, Methodologies, and Challenges

Advanced Electronic Materials, EarlyView.
This paper provides a comprehensive review of the existing literature related to the fundamentals of gallium oxide (Ga2O3), growth methods, substrates, and particularly a focused examination of Ga2O3‐based heterojunctions. Particular attention has also been given to the state‐of‐the‐art Ga2O3‐based heterojunctions for photodetectors. The key challenges
Alfred Moore, Saqib Rafique, Ciaran Llewelyn, Dan Lamb, Lijie Li   +4 more
wiley   +1 more source