Results 181 to 190 of about 213,451 (373)

Elliptical galaxies with rapidly decreasing velocity dispersion profiles: NMAGIC models and dark halo parameter estimates for NGC 4494

, 2013
NGC 4494 is one of several intermediate-luminosity elliptical galaxies inferred to have an unusually diffuse dark matter halo. We use the chi^2-made-to-measure particle code NMAGIC to construct axisymmetric models of NGC 4494 from photometric and various
Arnaboldi, Magda, Coccato, Lodovico, Gerhard, Ortwin, Martinez-Valpuesta, Inma, Morganti, Lucia   +4 more
core   +1 more source

Structurally Colored Physically Unclonable Functions with Ultra‐Rich and Stable Encoding Capacity

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
This study reports a design strategy for generating bright‐field resolvable physically unclonable functions with extremely rich encoding capacity coupled with outstanding thermal and chemical stability. The optical response emerges from thickness‐dependent structural color formation in ZnO features, which are fabricated by physical vapor deposition ...
Abidin Esidir, Miaoning Ren, Sami Pekdemir, Mustafa Kalay, Nilgun Kayaci, Nail Gunaltay, Hakan Usta, Xian Huang, Mustafa Serdar Onses   +8 more
wiley   +1 more source

The interaction of dark matter cusp with the baryon component in disk galaxies

, 2012
In this paper we examine the effect of the formation and evolution of the disk galaxy on the distribution of dark halo matter. We have made simulations of isolated dark matter (DM) halo and two component (DM + baryons).
A. A. Dutton, A. Helmi, A. Khoperskov, A. P. Cooper, A. Rosen, A. V. Khoperskov, A. V. Khoperskov, A. V. Khoperskov, A. V. Maccio, A. V. Zasov, A.G.Doroshkevich,V. N. Lukash, B. Allgood, B. C. Whitmore, B. Leer van, B. M. Shustov, B. M. Shustov, B.M. Shustov, D. Z. Wiebe, E. Griv, E. Mikheeva, F. Governato, H. Mo, I.V. Igumenshchev, J. A. Sellwood, J. Barnes, J. Dubinski, J. F. Navarro, J. F. Navarro, K. Wada, M. A. Eremin, M. D. Weinberg, M. G. Abadi, M. Gustafsson, M. Kuhlen, M. Mori, M. Spano, M. Steinmetz, M. V. Medvedev, N. Katz, P. Das, R. Roskar, S. A. Khoperskov, V. Belokurov, W. J. G. Blok de, W. R. Brown   +44 more
core   +1 more source

Dynamic Micromechanical Characterization of 3D Printed Bone In Vitro Models Manufactured via Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This study presents a novel approach to designing and fabricating high‐porosity 3D‐printed scaffolds using a customized resin. Scaffold geometry, cellular interactions, and mechanical properties are analyzed to demonstrate these engineered bone models.
Sera Choi, Elizabeth Hunt, Edward A. Shangin, Zahra Bahranifard, Emma Nguyen, Caitlyn J. Collins, Abby R. Whittington   +6 more
wiley   +1 more source

Dark galactic halos without dark matter [PDF]

EPL (Europhysics Letters), 2015
5 pages, updated text, recent references added, accepted for Europhysics ...
openaire   +3 more sources

Self‐Cascade Catalytic Reaction–Assisted Apoptosis/Calcicoptosis/Ferroptosis Induction with Microsphere‐Aggregated Hydrogels in Triple‐Negative Breast Cancer Therapy

Advanced Functional Materials, EarlyView.
Hyaluronic acid‐dopamine‐based intra‐crosslinked microsphere including cisplatin (HPC MS) is fabricated by spray‐drying and calcium/iron ions are introduced for interparticle crosslinking. Designed microsphere‐aggregated hydrogel (MAH) system including cisplatin/CaO2/FeSO4 can provide apoptosis/calcicoptosis/ferroptosis‐mediated chemo/cascade ...
ChaeRim Hwang, Yeoung Eun Choi, Song Yi Lee, Mrinmoy Karmakar, Qiaojun Hao, Junmin Lee, Hyun‐Jong Cho   +6 more
wiley   +1 more source

The Shape and Mass of the Galactic Dark Matter Halo from the Axisymmetric Jeans Model

The Astrophysical Journal
We explore the density profile, shape, and virial mass of the Milky Way’s dark matter halo, using K giants (KGs) from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope and Sloan Digital Sky Survey (SDSS)/SEGUE as well as blue horizontal ...
Lan Zhang, Xiang-Xiang Xue, Ling Zhu, Ruizhi Zhang, Chengqun Yang, Shi Shao, Jiang Chang, Feilu Wang, Hao Tian, Gang Zhao, Chao Liu   +10 more
doaj   +1 more source

Revisiting perfect fluid dark matter: Observational constraints from our galaxy

Physics Letters B, 2016
We revisit certain features of an assumed spherically symmetric perfect fluid dark matter halo in the light of the observed data of our galaxy, the Milky Way (MW). The idea is to apply the Faber–Visser approach of combined observations of rotation curves
Alexander A. Potapov, Guzel M. Garipova, Kamal K. Nandi   +2 more
doaj   +1 more source

Distinctive positron feature from particle dark-matter annihilations in the galatic halo [PDF]

, 1991
Marc Kamionkowski, Michael S. Turner
openalex   +1 more source

Effect of dark matter halo substructures on galaxy rotation curves

, 2010
The effect of halo substructures on galaxy rotation curves is investigated in this paper using a simple model of dark matter clustering. A dark matter halo density profile is developed based only on the scale free nature of clustering that leads to a ...
Begeman, Burkert, Burkert, Clowe, de Blok, El-Zant, Fahr, Fukushige, Haynes, Jing, Keeton, Klypin, Kuzio de Naray, Ludlow, Madau, Mandelbrot, Moore, Navarro, Nirupam Roy, Richter, Romano-Díaz, Romano-Díaz, Romano-Díaz, Saha, Sanders, Sanders, Shlosman, Sommer-Larsen, Sommer-Larsen, Taylor, Weinberg, Zhao   +31 more
core   +1 more source