Results 41 to 50 of about 3,251,679 (315)

Mapping the dynamics of a giant Ly α halo at z = 4.1 with MUSE: the energetics of a large-scale AGN-driven outflow around a massive, high-redshift galaxy [PDF]

, 2015
We present Multi Unit Spectroscopic Explorer (MUSE) integral field unit spectroscopic observations of the ˜150 kpc Lyalpha halo around the z = 4.1 radio galaxy TN J1338-1942.
M. Swinbank, J. Vernet, I. Smail, C. Breuck, R. Bacon, T. Contini, J. Richard, H. Rottgering, T. Urrutia, B. Venemans   +9 more
semanticscholar   +1 more source

Testing the MOND paradigm of modified dynamics with galaxy-galaxy gravitational lensing. [PDF]

Physical Review Letters, 2013
The MOND paradigm of modified dynamics predicts that the asymptotic gravitational potential of an isolated, bounded (baryonic) mass, M, is ϕ(r)=(MGa0)1/2ln(r).
M. Milgrom
semanticscholar   +1 more source

Probing the Nonlinear Density Wave Theory of Spiral Galaxies by Baryonic Tully–Fisher Relation

Universe
The baryonic mass–velocity relation provides an important test of different galaxy dynamics models such as Lambda–cold dark matter (ΛCDM) and alternatives like Modified Newtonian Dynamics (MOND).
Miroslava Vukcevic, Djordje Savic, Predrag Jovanović   +2 more
doaj   +1 more source

Galaxy Dynamics and the PNe Population [PDF]

, 2005
This review attempts to place the observations of extragalactic planetary nebulae in the context of galactic dynamics. From this point of view only the radial velocities of the PNe is important.
N. Douglas
semanticscholar   +1 more source

The unrelaxed dynamical structure of the galaxy cluster Abell 85 [PDF]

, 2016
For the first time, we explore the dynamics of the central region of a galaxy cluster within $r_{500}\sim 600h^{-1}$~kpc from its center by combining optical and X-ray spectroscopy.
Aguerri, Jose Alfonso Lopez, Agulli, Irene, Diaferio, Antonaldo, Tozzi, Paolo, Yu, Heng   +4 more
core   +3 more sources

High‐Density Boron Nitride Nanotube Composites via Surfactant‐Stabilized Lyotropic Liquid Crystals for Enhanced Space Radiation Shielding

Advanced Functional Materials, EarlyView.
High‐density BNNT films, enabling mechanical robustness and high space radiation shielding effectiveness, are fabricated using surfactant‐stabilized BNNT liquid crystal. Simulations indicate that a 50 g cm−2 BNNT film can reduce radiation exposure by 56% compared to zero shielding, potentially doubling the duration of astronaut missions on the lunar ...
Young‐Kyeong Kim, Ik Jae Lim, Hongjin Lim, Yongbi Joo, Jueun Park, Md Monir Hossain, Hyunjin Cho, Nam‐Ho You, Seokhoon Ahn, Hunsu Lee, Sang Seok Lee, Yongho Joo, Se Youn Moon, Hee Il Yoo, Calista Lum, Cheol Park, Siyoung Q. Choi, Se Gyu Jang   +17 more
wiley   +1 more source

A machian model as potential alternative to dark matter halo thesis in galactic rotational velocity prediction

Frontiers in Astronomy and Space Sciences
A novel axially symmetric metric is proposed to solve the Einstein field equations. This provides an analytical solution within the matter in the equatorial plane for any galaxy density profile.
Stephan Walrand
doaj   +1 more source

Unstable Galaxy Models

, 2013
The dynamics of collisionless galaxy can be described by the Vlasov-Poisson system. By the Jean's theorem, all the spherically symmetric steady galaxy models are given by a distribution of {\Phi}(E,L), where E is the particle energy and L the angular ...
Guo, Yan, Lin, Zhiwu, Wang, Zhiyu, Zhang, Pingwen   +3 more
core   +1 more source

Triazine‐Trione Thermosets with High Processability for Scaffold Applications in Bone Tissue Engineering

Advanced Healthcare Materials, EarlyView.
Novel photo‐clickable triazine‐trione thermosets can be shaped and cured under mild conditions, including room and physiological temperatures. These materials are biocompatible and support osteogenic differentiation of bone marrow–derived mesenchymal stem cells on their surface.
Åshild Johansen, Shuntaro Yamada, Daniel J. Hutchinson, Mohammed A. Yassin, Samih Mohamed‐Ahmed, Cecilie Gjerde, Michael Malkoch, Kamal Mustafa   +7 more
wiley   +1 more source

ALFALFA DISCOVERY OF THE NEARBY GAS-RICH DWARF GALAXY LEO P. V. NEUTRAL GAS DYNAMICS AND KINEMATICS [PDF]

, 2014
We present new H i spectral line imaging of the extremely metal-poor, star-forming dwarf irregular galaxy Leo P. Our H i images probe the global neutral gas properties and the local conditions of the interstellar medium (ISM).
Elijah Z. Bernstein-Cooper, J. Cannon, E. Elson, S. Warren, Jayaram Chengular, E. Skillman, E. Adams, A. Bolatto, R. Giovanelli, M. Haynes, K. McQuinn, S. Pardy, K. Rhode, J. Salzer   +13 more
semanticscholar   +1 more source