Results 31 to 40 of about 169,400 (221)

The origin of galaxy scaling laws in LCDM

, 2018
It has long been recognized that tight relations link the mass, size, and characteristic velocity of galaxies. These scaling laws reflect the way in which baryons populate, cool, and settle at the center of their host dark matter halos; the angular ...
C Li, C. Scannapieco, I Ferrero, IK Baldry, J Pizagno, JF Navarro, JF Navarro, JF Navarro, Joop Schaye, JS Bullock, KA Oman, KA Oman, PS Behroozi, RB Tully, Till Sawala   +14 more
core   +1 more source

Higher signal harmonics, LISA's angular resolution, and dark energy [PDF]

, 2007
It is generally believed that the angular resolution of the Laser Interferometer Space Antenna (LISA) for binary supermassive black holes (SMBH) will not be good enough to identify the host galaxy or galaxy cluster.
Arun, K. G., Broeck, Chris Van Den, Iyer, Bala R., Sathyaprakash, B. S., Sinha, Siddhartha   +4 more
core   +4 more sources

Dynamic Chiral Plasmonic Systems‐Based on Spiropyran Derivatives and Gold Nanorods

Advanced Materials Interfaces, EarlyView.
Soft chiral plasmonic nanocomposites are prepared by embedding gold nanorods into spiropyran‐based supramolecular gels. The system self‐assembles into helical structures, enabling plasmonic circular dichroism. When illuminated with UV light spiropyran–merocyanine isomerization occurs, inducing reversible nanoscale reorganization and modulation of the ...
Ewelina Tomczyk, Maciej Bagiński, Dorota Szepke, Wiktor Lewandowski, Michał Wójcik   +4 more
wiley   +1 more source

The introduction of baryon string in the model of spiral galaxies structure [PDF]

Компьютерные исследования и моделирование, 2012
It proposes a new alternative approach to explain the flat spectrum of the velocity for stars orbital motion on the periphery of spiral galaxies. In particular, that velocity significant excess of speed calculated according to the virial theorem.
A. V. Koganov, Vladimir G. Krechet
doaj   +1 more source

Formation of Wormholes by Dark Matter in the Galaxy Dragonfly 44

, 2018
Recently, ultra diffuse galaxy (UDG) of Dragonfly 44 in the Coma Cluster was observed and observations of the rotational speed suggest that its mass is almost same as the mass of the Milky Way. On the other hand, interestingly, the galaxy emits only 1 \%
Halilsoy, Mustafa, Islam, Sayeedul, Rahaman, Farook, Övgün, Ali   +3 more
core   +1 more source

Controlled Air Gap Formation between W and TiO2 Films via Sub‐Surface TiO2 Atomic Layer Etching

Advanced Materials Technologies, EarlyView.
Delivering SiH4 and WF6 to a lined array of TiO2 films produces a thin film of tungsten while simultaneously, the underlying TiO2 is removed. When the W‐coated TiO2 structure is exposed to further etching cycles after deposition, TiO2 etching continues vertically and laterally, creating a self‐supported W structure and a vacant air gap.
Hannah R. M. Margavio, Jimmy Nguyen, Man Hou Vong, Nicholas M. Carroll, Ishwar Singh, Noel Arellano, Gregory N. Parsons   +6 more
wiley   +1 more source

Self-interacting dark matter on small and large scales

SciPost Physics Proceedings, 2023
In the self-interacting dark matter paradigm (hereafter SIDM), dark matter (DM) is assumed to have non-gravitational interactions with itself. SIDM has been constrained by observations of galaxy clusters. More recently, measurements of large DM densities
Camila A. Correa
doaj   +1 more source

Clinically Inspired Multimodal Treatment Using Induced Neural Stem Cells‐Derived Exosomes Promotes Recovery of Traumatic Brain Injury through Microglial Modulation

Advanced Science, EarlyView.
This study explores the therapeutic potential of iNSC‐Exo via local and systemic delivery in TBI mice. It is found that iNSC‐Exo enhances NRXN signaling through Microglia_Nrg3 and Microglia_Rarb, effectively promoting functional and neurological recovery, suggesting a new therapeutic strategy for TBI. Abstract Traumatic brain injury (TBI) poses serious
Jiaojiao Li, Maoxiang Xu, Boyu Cai, Xiangyu Li, Zhanping Liang, Xiaohuan Xia, Haitao Zhang, Zhiwen Zhang, Fei Tan, Jialin Charlie Zheng   +9 more
wiley   +1 more source

Tidal Formation of Dark Matter Deficit Diffuse Galaxy NGC 1052-DF2 by SIDM

The Astrophysical Journal
Observations have revealed a significant dark matter deficit in the ultradiffuse galaxy NGC 1052-DF2 (DF2). It is widely accepted that the formation of this unique galaxy can be attributed to the tidal stripping of its host galaxy, NGC 1052.
Zhao-Chen Zhang, Xiao-Jun Bi, Peng-Fei Yin   +2 more
doaj   +1 more source

Anomalous anisotropic cross-correlations between WMAP CMB maps and SDSS galaxy distribution and implications on the dark flow scenario

, 2012
We search for the dark flow induced diffuse kinetic Sunyaev Zel'dovich (kSZ) effect through CMB-galaxy cross correlation. Such angular correlation is anisotropic, with a unique $cos(theta_DF)$ angular dependence and hence can be distinguished from other ...
Blanton, Blanton, Blanton, Cabré, Choi, de Vaucouleurs, Fosalba, Gold, Górski, Jing, Juszkiewicz, Kashlinsky, Kashlinsky, Kashlinsky, Lavaux, Li, Ma, Mody, Nusser, Osborne, Pengjie Zhang, Pike, Planck Collaboration ., Xuelei Chen, Zehavi, Zhigang Li   +25 more
core   +1 more source