Results 91 to 100 of about 186,945 (281)

X-ray surface brightness fluctuations in smooth galaxy cluster atmospheres [PDF]

Monthly notices of the Royal Astronomical Society
We measure surface brightness fluctuations in Chandra X-ray images of the cores of the galaxy clusters Abell 2029, Abell 2151, Abell 2107, RBS0533, and RBS0540.
Muzi Li, B. McNamara, I. Zhuravleva
semanticscholar   +1 more source

Surface Brightness Fluctuations and the Stellar Population in Elliptical Galaxies [PDF]

Symposium - International Astronomical Union, 1995
The Surface Brightness Fluctuation (SBF) method introduced by Tonry & Schneider (1988) is known as a distance indicator. However, we focus on another aspect. Our aim is to obtain new information on the stellar population that constitutes an elliptical galaxy by comparing radial gradients in SBF magnitudes with traditional broad-band colours.
Marianne Sodemann, Bjarne Thomsen
openaire   +1 more source

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

Advanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer, Eric R. Hoglund, Anton V. Ievlev, Patrick E. Hopkins   +3 more
wiley   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

CHEX-MATE: Turbulence in the intra-cluster medium from X-ray surface brightness fluctuations [PDF]

Astronomy & Astrophysics
The intra-cluster medium is prone to turbulent motion that will contribute to the non-thermal heating of the gas, complicating the use of galaxy clusters as cosmological probes.
S. Dupourqu'e, N. Clerc, E. Pointecouteau, D. Eckert, M. Gaspari, L. Lovisari, G. Pratt, E. Rasia, M. Rossetti, F. Vazza, M. Balboni, Iacopo Bartalucci, H. Bourdin, F. D. Luca, M. Petris, S. Ettori, S. Ghizzardi, P. Mazzotta   +17 more
semanticscholar   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

Velocity Structure Correlations between the Nebular, Molecular, and Atmospheric Gases in the Cores of Four Cool Core Clusters

The Astrophysical Journal
We investigate the velocity structure of nebular gas in the central galaxies of four clusters: A1835, PKS 0745−191, A262, and RXJ0820.9+0752, using data from the Keck Cosmic Web Imager. Velocity structure functions (VSFs) of the [O ii ] emission line are
Muzi Li, B.R. McNamara, Alison L. Coil, Marie-Joëlle Gingras, Fabrizio Brighenti, H.R. Russell, Prathamesh D. Tamhaneh, S. Peng Oh, Serena Perrotta   +8 more
doaj   +1 more source

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

Advanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo, Shuo Qu, Shiming Gao, Xu Song   +3 more
wiley   +1 more source

An Unexplained Origin for the Unusual Globular Cluster System in the Ultradiffuse Galaxy FCC 224

The Astrophysical Journal
We study the quiescent ultradiffuse galaxy FCC 224 in the Fornax cluster using Hubble Space Telescope (HST) imaging, motivated by peculiar properties of its globular cluster (GC) system revealed in shallower imaging.
Yimeng Tang, Aaron J. Romanowsky, Jonah S. Gannon, Steven R. Janssens, Jean P. Brodie, Kevin A. Bundy, Maria Luisa Buzzo, Enrique A. Cabrera, Shany Danieli, Anna Ferré-Mateu, Duncan A. Forbes, Pieter G. van Dokkum   +11 more
doaj   +1 more source

Halo ratio from ground based all-sky imaging [PDF]

, 2018
© Author(s) 2019.The halo ratio (HR) is a quantitative measure characterizing the occurrence of the 22 halo peak associated with cirrus. We propose to obtain it from an approximation to the scattering phase function (SPF) derived from allsky imaging ...
D. Campbell, P. Dandini, P. Dandini, R. Kaye, Z. Ulanowski   +4 more
core   +5 more sources