Results 11 to 20 of about 2,299,265 (280)
Wave Properties of Gas-Hydrate Bearing Sediments Based on Poroelasticity
Frontiers in Earth Science, 2021 Natural gas hydrates have the properties of ice with a microporous structure and its concentration in sediments highly affects the wave velocity and attenuation. Previous studies have performed investigations based on the measurements of laboratory data,
Wei Wang +5 more
doaj +1 more source
Sensors, 2021 Horizontal-to-Vertical Spectral Ratios (HVSR) and Rayleigh group velocity dispersion curves (DC) can be used to estimate the shallow S-wave velocity (VS) structure. Knowing the VS structure is important for geophysical data interpretation either in order
Maik Neukirch +5 more
doaj +1 more source
A THEOREM ON CENTRAL VELOCITY DISPERSIONS [PDF]
The Astrophysical Journal, 2009 submitted to ...
An, Jin Hyeok, Evans, N. W.
openaire +3 more sources
Universe, 2022 The remarkable development of cosmology benefits from the increasingly improved measurements of cosmic distances, including absolute distances and relative distances.
Jing-Zhao Qi +4 more
doaj +1 more source
Mean proper motions, space orbits, and velocity dispersion profiles of Galactic globular clusters derived fromGaiaDR2 data [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We have derived the mean proper motions and space velocities of 154 Galactic globular clusters and the velocity dispersion profiles of 141 globular clusters based on a combination of Gaia DR2 proper motions with ground-based line-of-sight velocities ...
H. Baumgardt +3 more
semanticscholar +1 more source
The Case for the Fundamental MBH-σ Relation
Frontiers in Physics, 2020 Strong scaling relations between host galaxy properties (such as stellar mass, bulge mass, luminosity, effective radius etc) and their nuclear supermassive black hole's mass point toward a close co-evolution.
Christopher Marsden +3 more
doaj +1 more source
The Evolution and Origin of Ionized Gas Velocity Dispersion from z ∼ 2.6 to z ∼ 0.6 with KMOS3D [PDF]
Astrophysical Journal, 2019 We present the 0.6 < z < 2.6 evolution of the ionized gas velocity dispersion in 175 star-forming disk galaxies based on data from the full integral field spectroscopic survey.
H. Übler +29 more
semanticscholar +1 more source
Effects of Velocity and Permeability on Tracer Dispersion in Porous Media
Applied Sciences, 2021 During micro-scale tracer flow in porous media, the permeability and fluid velocity significantly affect the fluid dispersion properties of the media. However, the relationships between the dispersion coefficient, permeability, and fluid velocity in core
Yulong Yang +9 more
doaj +1 more source
The Slope of the Black Hole Mass versus Velocity Dispersion Correlation [PDF]
, 2002 Observations of nearby galaxies reveal a strong correlation between the mass of the central dark object MBH and the velocity dispersion σ of the host galaxy, of the form log(MBH/M☉) = α + β log(σ/σ0); however, published estimates of the slope β span a ...
S. Tremaine +14 more
semanticscholar +1 more source
Stellar Velocity Dispersion of a Massive Quenching Galaxy at z = 4.01 [PDF]
Astrophysical Journal, 2019 We present the first stellar velocity dispersion measurement of a massive quenching galaxy at z = 4. The galaxy is first identified as a massive z ≥ 4 galaxy with suppressed star formation from photometric redshifts based on deep multiband data. A follow-
Masayuki Tanaka +14 more
semanticscholar +1 more source