Formation of metastable t? -phase in solute-redistributed Y-PSZ

Lin, Shiang-Jiun; Lu, Hong-Yang; Shen, Pouyan

doi:10.1007/bf00576040

Cited by 42 publications

(67 citation statements)

References 11 publications

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“…This is in reasonable agreement with our results, although the radio-loud BCG fraction we measure is somewhat higher. Lin & Mohr (2007) also find a strong trend with cluster mass (inferred from the X-ray luminosity), though the strength of the trend is sensitive to the radio power limit and K-band luminosity of the galaxy. Our NFPS sample is too small to robustly identify such trends, but we note that the fraction of BCGs with radio sources that are in clusters with a velocity dispersion <600 km s −1 is 54 ± 15 per cent, quite similar to that for BCGs in clusters with a velocity dispersion >600 km s −1 , 58 ± 15 per cent.…”

Section: Discussionmentioning

confidence: 85%

“…In the optically selected SDSS, we find no significant trend with velocity dispersion, but an overall fraction of ∼40 per cent of the BCGs with radio emission, and ∼25 per cent of the controls. Because of the difference in sample selection, and the cluster mass estimators, we do not consider this a serious discrepancy with the results of Lin & Mohr (2007).…”

Section: Discussionmentioning

confidence: 92%

“…Recently, Lin & Mohr (2007) have studied the radio-loud properties of a large X-ray selected cluster sample, and find the overall radio-loud fraction to be ∼35 per cent for K-band selected BCGs within r 200 of the cluster centre (compared with ∼20 per cent for bright cluster galaxies, excluding the BCGs). This is in reasonable agreement with our results, although the radio-loud BCG fraction we measure is somewhat higher.…”

Section: Discussionmentioning

confidence: 99%

“…These authors find that radio-loud AGN activity is more frequent in BCGs than in other galaxies of the same mass, but that this frequency does not depend strongly on cluster velocity dispersion. On the other hand, in their study of radio-loud properties of an X-ray selected cluster sample, Lin & Mohr (2007) find the overall radio-loud fraction to be 30 per cent in BCGs, and that the fraction is higher in more massive clusters. Importantly, von der Linden et al (2007) find that many of these radio-loud galaxies would not necessarily be identified as AGN from their optical emission lines and, in fact, that optical AGN activity appears to be less frequent among BCGs than other cluster galaxies of similar mass.…”

Section: Introductionmentioning

confidence: 96%

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Line emission in the brightest cluster galaxies of the NOAO Fundamental Plane and Sloan Digital Sky Surveys

Edwards

Hudson

Balogh

et al. 2007

Monthly Notices of the Royal Astronomical Society

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We examine the optical emission‐line properties of brightest cluster galaxies (BCGs) selected from two large, homogeneous data sets. The first is the X‐ray selected National Optical Astronomy Observatory Fundamental Plane Survey (NFPS), and the second is the C4 catalogue of optically selected clusters built from the Sloan Digital Sky Survey Data Release 3 (SDSS DR3). Our goal is to better understand the optical line emission in BCGs with respect to properties of the galaxy and the host cluster. Throughout the analysis we compare the line emission of the BCGs to that of a control sample made of the other bright galaxies near the cluster centre. Overall, both the NFPS and SDSS show a modest fraction of BCGs with emission lines (∼15 per cent). No trend in the fraction of emitting BCGs as a function of galaxy mass or cluster velocity dispersion is found. However, we find that, for those BCGs found in cooling flow clusters, 71+9−14 have optical emission. Furthermore, if we consider only BCGs within 50 kpc of the X‐ray centre of a cooling flow cluster, the emission‐line fraction rises further to 100+0−15 per cent. Excluding the cooling flow clusters, only ∼10 per cent of BCGs are line emitting, comparable to the control sample of galaxies. We show that the physical origin of the emission‐line activity varies: in some cases it has LINER‐like line ratios, whereas in others it is a composite of star‐formation and LINER‐like activity. We conclude that the presence of emission lines in BCGs is directly related to the cooling of X‐ray gas at the cluster centre.

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Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

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Line emission in the brightest cluster galaxies of the NOAO Fundamental Plane and Sloan Digital Sky Surveys

Edwards

Hudson

Balogh

et al. 2007

Monthly Notices of the Royal Astronomical Society

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“…However, the percentage elongation decreased to 5% for epoxy reinforced with 0.5% wt% CNTs. As the weight percentage of CNT loading in the epoxy matrix increases, the number of agglomerated CNT clusters also increase [21, 22]. These agglomerates act like defects and initiate microcracks, which decreases the amount of extension before failure.…”

Section: Results and Discussion Of Electromechanical Responsementioning

confidence: 99%

Bioactive composites with designed interphases based on hyperbranched macromers

Oréfice

Clark

Brennan

2005

J of Applied Polymer Sci

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A series of designed interphases was produced by grafting chemically modified poly (aryl ether sulfones) (PSF) onto bioactive glass (BAG) particles. Macromolecular architecture, polymer morphology, composition and crosslink density of these PSF hybrid interphases were studied with respect to influence on mechanical properties. The hybrid PSF interphases improved mechanical strength by 20% over conventional silane treatments and increased the overall energy to failure by nearly 100%. The structure of the interphase was modeled with a three-phase viscoelastic model. The results demonstrated the ability to engineer an interphase having hyperstructures containing mobile species and inorganic functionalities that improve adhesion and favor energy release during fracture processes.

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Recent Advances in W–Cu Composites: A Review on the Fabrication, Application, Property, Densification, and Strengthening Mechanism

Zhang,

Yang,

Huang

et al. 2023

Adv Eng Mater

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Tungsten–copper (W–Cu) composite is a pseudoalloy prepared by powder metallurgy method with tungsten and copper as the main components, which are widely used in electrical contacts, electrical discharge machining electrodes, electronic packaging, aerospace, and military fields due to its good conductivity, thermal conductivity, high melting point, high electrical breakdown strength, low contact resistance, high welding resistance, and high heat resistance. Herein, the recent advances of W–Cu composites are reviewed systematically. First, the preparative techniques of W–Cu composites are introduced in detail, and their advantages and disadvantages are evaluated objectively. Second, an introduction of the main application fields and corresponding characteristics advantages for W–Cu composites are provided. Subsequently, the densification techniques and strengthening mechanisms and their effects on microstructure, mechanical properties, and physical properties of W–Cu composites are mainly discussed. Finally, based on a comprehensive review of W–Cu composites, its future development trends and potential research challenges are summarized and prospected.

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Formation of metastable t? -phase in solute-redistributed Y-PSZ

Cited by 42 publications

References 11 publications

Line emission in the brightest cluster galaxies of the NOAO Fundamental Plane and Sloan Digital Sky Surveys

Line emission in the brightest cluster galaxies of the NOAO Fundamental Plane and Sloan Digital Sky Surveys

Bioactive composites with designed interphases based on hyperbranched macromers

Recent Advances in W–Cu Composites: A Review on the Fabrication, Application, Property, Densification, and Strengthening Mechanism

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