Results 41 to 50 of about 1,890 (176)

Measuring dynamical masses from gas kinematics in simulated high-redshift galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT Advances in instrumentation have recently extended detailed measurements of gas kinematics to large samples of high-redshift galaxies. Relative to most nearby, thin disc galaxies, in which gas rotation accurately traces the gravitational potential, the interstellar medium (ISM) of $z$ ≳ 1 galaxies is typically more dynamic and ...
Christopher C. Hayward, Daniel Anglés-Alcázar, Daniel Anglés-Alcázar, Claude André Faucher-Giguère, Dušan Kereš, Sarah Wellons, Robert Feldmann, Philip F. Hopkins   +7 more
openaire   +5 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

SHIELD: NEUTRAL GAS KINEMATICS AND DYNAMICS [PDF]

, 2016
We present kinematic analyses of the 12 galaxies in the “Survey of H i in Extremely Low-mass Dwarfs” (SHIELD). We use multi-configuration interferometric observations of the H i 21 cm emission line from the Karl G.
A. McNichols, A. McNichols, Y. Teich, Y. Teich, Elise Nims, J. Cannon, E. Adams, Elijah Z. Bernstein-Cooper, R. Giovanelli, M. Haynes, G. J'ozsa, K. McQuinn, K. McQuinn, J. Salzer, E. Skillman, S. Warren, A. Dolphin, E. Elson, Nathalie Haurberg, J. Ott, A. Saintonge, Ian Cave, Cedric J. Hagen, Shan Huang, S. Janowiecki, S. Janowiecki, Melissa V. Marshall, C. Thomann, A. V. Sistine   +28 more
semanticscholar   +1 more source

The kiloparsec-scale gas kinematics in two star-forming galaxies at z ∼ 1.47 seen with ALMA and VLT-SINFONI [PDF]

Monthly notices of the Royal Astronomical Society, 2019
We present Atacama Large Millimeter/submillimeter Array (ALMA) CO(J = 2 − 1) observations of two main-sequence star-forming galaxies at z ∼ 1.47 taken from the High-Z Emission Line Survey (HiZELS).
J. Molina, E. Ibar, I. Smail, A. Swinbank, E. Villard, A. Escala, D. Sobral, T. Hughes   +7 more
semanticscholar   +1 more source

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 ...
Rhea-Silvia Remus, Felix Schulze, Glenn van de Ven, Glenn van de Ven, Klaus Dolag, Eric Emsellem, Eric Emsellem, Andreas Burkert   +7 more
openaire   +5 more sources

Structure and Kinematics of Early-Type Galaxies from Integral Field Spectroscopy [PDF]

, 2016
Observations of galaxy isophotes, long-slit kinematics, and high-resolution photometry suggested a possible dichotomy between two distinct classes of elliptical galaxies. But these methods are expensive for large galaxy samples.
M. Cappellari
semanticscholar   +1 more source

Internal kinematics and dynamical models of dwarf spheroidal galaxies around the Milky Way [PDF]

New Astronomy Reviews, 2013
89 pages, 12 figures.
Battaglia, Giuseppina; Helmi, Amina; Breddels, Maarten   +3 more
openaire   +3 more sources

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
A. O. Gromov, L. P. Ossipkov, I. I. Nikiforov   +2 more
openaire   +5 more sources

Accelerating galaxy dynamical modeling using a neural network for joint lensing and kinematic analyses

Astronomy & Astrophysics, 2023
Strong gravitational lensing is a powerful tool to provide constraints on galaxy mass distributions and cosmological parameters, such as the Hubble constant, H0. Nevertheless, inference of such parameters from images of lensing systems is not trivial as parameter degeneracies can limit the precision in the measured lens mass and cosmological results ...
Gomer, Matthew R., Ertl, Sebastian, Biggio, Luca, Wang, Han, Galan, Aymeric, Van de Vyvere, Lyne, Sluse, Dominique, Vernardos, Georgios, Suyu, Sherry H.   +8 more
openaire   +4 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