Results 91 to 100 of about 407,723 (180)

The Neutral Hydrogen Kinematics of the Dwarf Galaxy Merger NGC 3239 [PDF]

, 2019
We present H I spectral line images of the nearby dwarf galaxy NGC 3239. The galaxy’s curious morphology suggests that it is a post-merger system. We propose that NGC 3239 is a merger because it has multiple tidal tails, an enhanced velocity dispersion ...
Ford, Robert N
core   +1 more source

Mild Velocity Dispersion Evolution of Spheroid-like Massive Galaxies since z~2

, 2009
Making use of public spectra from Cimatti et al (2008), we measure for the first time the velocity dispersion of spheroid-like massive (M_star ~ 10^11 M_sun) galaxies at z ~ 1.6.
A. Javier Cenarro, Ayres, Beasley, Bernardi, Blanton, Blanton, Buitrago, Cardiel, Churchill, Daddi, Damjanov, Fan, Ferreras, Giavalisco, González, Gregg, Heap, Hopkins, Ignacio Trujillo, Khochfar, Naab, Pérez-González, Ravindranath, Ravindranath, Sérsic, Toft, Trujillo, Trujillo, van der Wel, van der Wel, van Dokkum, Zirm   +31 more
core   +1 more source

Shaping the relation between the mass of supermassive black holes and the velocity dispersion of galactic bulges [PDF]

, 2013
M. H. Chan
openalex   +1 more source

How Cold is Cold Dark Matter?

, 2014
If cold dark matter consists of particles, these must be non-interacting and non-relativistic by definition. In most cold dark matter models however, dark matter particles inherit a non-vanishing velocity dispersion from interactions in the early ...
Armendariz-Picon, Cristian, Neelakanta, Jayanth T.   +1 more
core   +1 more source

Quasar Black Hole Masses from Velocity Dispersions [PDF]

, 2008
Gabriela Canalizo, Margrethe Wold, Mariana Lazarova, Mark Lacy, Sandip K. Chakrabarti, Archan S. Majumdar   +5 more
openalex   +1 more source

EVOLUTION OF THE VELOCITY-DISPERSION FUNCTION OF LUMINOUS RED GALAXIES: A HIERARCHICAL BAYESIAN MEASUREMENT [PDF]

, 2012
Yiping Shu, Adam S. Bolton, David J. Schlegel, Kyle S. Dawson, David A. Wake, Joel R. Brownstein, Jon Brinkmann, Benjamin A. Weaver   +7 more
openalex   +1 more source

Exploring the Earth's mantle structure based on joint gravimetric and seismometric group-velocity dispersion curves of Rayleigh waves

, 2022
Kamila Karkowska, Monika Wilde‐Piórko, Przemysław Dykowski, Marcin Sękowski, Marcin Polkowski   +4 more
openalex   +1 more source

Linear Boltzmann Equation for Solute Dispersion in Heterogeneous Media Under Non-Ergodic Conditions

ARC Geophysical Research
We study solute dispersion under non-ergodic conditions using a Boltzmann equation for the evolution of the joint distribution of the position and speed of solute particles in steady spatially heterogeneous flow fields.
Marco Dentz, Arash Massoudieh
doaj   +1 more source

Optical frequency-dependent opposite effective acoustic velocity dispersion in stimulated Brillouin scattering

APL Photonics
Optical fibers serve not only as optical waveguides but also as acoustic waveguides, a dual functionality stemming from their structural properties and further enhanced by doping techniques.
Juntong Yang, Yuelang Huang, Yuan Wang, Liang Chen, Xiaoyi Bao   +4 more
doaj   +1 more source

Multichannel Analysis of Ambient Noise Surface Waves Based on Semblance Phase-Shift Method

Remote Sensing
Ambient noise surface wave exploration is one of the fields of interest in geophysical research. Extracting dispersion curves and inverting the S-wave velocity structure from the dispersion characteristics is also of primary importance.
Lu Liu, You Tian, Yang Liu, Jiawei Chen, Honghao Li   +4 more
doaj   +1 more source