Results 11 to 20 of about 191 (137)

Kinematics of simulated galaxies – I. Connecting dynamical and morphological properties of early-type galaxies at different redshifts [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
State-of-the-art integral field surveys like $\mathrm{ATLAS^{3D}}$, SLUGGS, CALIFA, SAMI, and MaNGA provide large data sets of kinematical observations of early-type galaxies (ETGs), yielding constraints on the formation of ETGs. Using the cosmological hydrodynamical \textit{Magneticum Pathfinder} simulations, we investigate the paradigm of fast and ...
Schulze, Felix, Remus, Rhea-Silvia, Dolag, Klaus, Burkert, Andreas, Emsellem, Eric, van de Ven, Glenn   +5 more
openaire   +6 more sources

The kinematics and dynamics of the rich cluster of galaxies Abell 539

The Astronomical Journal, 1988
A sample of 289 redshifts within 10 deg of the center of the cluster A539 have been obtained in order to investigate the cluster kinematics and dynamics. Within 1 Mpc of the center, the physical parameters of A539 are found to be typical of those of rich clusters.
Eve C. Ostriker, John P. Huchra, Margaret J. Geller, Michael J. Kurtz   +3 more
openaire   +1 more source

Kinematic and Dynamics of the Galaxy ESO 358-60

The Astrophysical Journal
Abstract We investigate the velocity field derived from H I measurements of the irregular galaxy ESO 358-60 using the velocity ring model (VRM) method. This technique, which assumes a coplanar disk, allows us to reconstruct coarse-grained maps of both radial and tangential ...
Francesco Sylos Labini, Matteo Straccamore   +1 more
openaire   +2 more sources

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

Deep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia, Yunpeng Ji, Zhao Lu, Honghua Zhao, Limin Zhang   +4 more
wiley   +1 more source

Stäackel-type Dynamic Model of the Galaxy Based on Maser Kinematic Data

Open Astronomy, 2016
Abstract A dynamic model of the Galaxy is constructed based on kinematic data for masers with trigonometric parallaxes. Maser data is used to compute the model potential in the Galactic plane. The potential is then generalized to three dimensions assuming the existence of a third quadratic integral of motion. The resulting Galactic model
Gromov A. O., Nikiforov I. I., Ossipkov L. P.   +2 more
openaire   +3 more sources

High-redshift quasars and their host galaxies – I. Kinematical and dynamical properties and their tracers [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
ABSTRACT Observations of high-redshift quasars provide information on the massive black holes (MBHs) powering them and the galaxies hosting them. Current observations of z ≳ 6 hosts, at sub-millimetre wavelengths, trace the properties of cold gas, and these are used to compare with the correlations between MBHs and galaxies ...
Lupi, Alessandro, Volonteri, Marta, Decarli, Roberto, Bovino, Stefano, Silk, Joseph, Bergeron, Jacqueline   +5 more
openaire   +3 more sources

50% body weight loading reduces stature increases and lumbar disc expansion from 4 h hyper‐buoyancy floatation versus 15 min sitting upright

Experimental Physiology, EarlyView.
Abstract Microgravity is associated with stature increases, back pain and post‐flight intervertebral disc (IVD) herniation. This study aims to determine whether 30 s seated 50% body weight (BW) axial loading is comparable to 15 min sitting upright in 1 g upon changes in stature, anterior lumbar IVD height (via ultrasound), passive vertebral stiffness ...
David Marcos‐Lorenzo, Christina Lysandrou, Laura Sudres, Alfonso Gil‐Martinez, Jaap Swanenburg, James Edward Clark, David Andrew Green   +6 more
wiley   +1 more source

Kinematic scaling relations of CALIFA galaxies: A dynamical mass proxy for galaxies across the Hubble sequence [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
accepted by ...
Aquino-Ortíz, Erik, Valenzuela, Octavio, Sánchez, Sebastián F., Hernández-Toledo, Hector, Avila-Reese, Vladimir, van de Ven, Glenn, Rodríguez-Puebla, Aldo, Zhu, Ling, Mancillas, Brisa, Cano-Díaz, Mariana, García-Benito, Rubén   +10 more
openaire   +5 more sources

Collisionless Shocks: Contemporary State After Three Quarters of a Century of Research

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract The collisionless shock research started in the late 1950s. Since then, plenty of data have been accumulated due to the large number of missions in the heliosphere, providing in situ measurements of the fields and particles. The quality of these measurements has vastly improved, especially in the last two decades.
M. Gedalin, M. Balikhin, V. Krasnoselskikh   +2 more
wiley   +1 more source

The Dynamics of the Dwarf Elliptical Galaxy FS 76: Bridging the Kinematic Dichotomy between Elliptical and Dwarf Elliptical Galaxies [PDF]

The Astrophysical Journal, 2001
We present major- and minor-axis kinematics out to ˜2 half-light radii for the bright (MB = -16.7) dwarf elliptical galaxy (dE) FS 76, a member of the NGC 5044 group. Its velocity dispersion is 46 ‘ 2 km s-1 in the center and rises to 70 ‘ 10 km s-1 at half-light radius. Beyond 1Re, the dispersion starts to fall again.
De Rijcke, S, Dejonghe, H, Zeilinger, WW, Hau, GKT   +3 more
openaire   +2 more sources