Relation between spall strength and mesoparticle velocity dispersion

Spall Strength and Failure Waves in Glass

The relation between black hole mass and velocity dispersion at z ∼ 0 . 37

The velocity dispersion of 7 Seyfert 1 galaxies at z ∼ 0.37 is measured using high signal-to-noise Keck spectra. Black hole (BH) mass estimates are obtained via an empirically calibrated photoionization method. We derive the BH mass velocity dispersion relationship at z ∼ 0.37. We find an offset with respect to the local relationship, in the sense of somewhat lower velocity dispersion at a fixe...

The Supernova Rate - Velocity dispersion Relation in the Interstellar Medium

We investigate with three-dimensional numerical simulations of supernova driven turbulence in the interstellar medium (ISM) the relationship between the velocity dispersion of the gas and the supernova rate and feedback efficiency. Our simulations aim to explore the constancy of the velocity dispersion profiles in the outer parts of galactic disk at ∼ 6 − 8 km s, and the transition to the starb...

The Infrared Diameter { Velocity Dispersion Relation for Elliptical Galaxies

Using single channel infrared photometry from the literature, a provisional K-band diameter{velocity dispersion relation for elliptical galaxies in the Coma and Virgo clusters is derived. The Coma cluster relation has 1.5 times lower scatter at K than in B or V. Excluding 4 outliers, the RMS scatter at K for 24 galaxies in Coma is only 4.8% in distance, close to the limit implied by the observa...

The AGN fraction – velocity dispersion relation in clusters of galaxies

Context. Some previous investigations have found that the fraction (fAGN ) of active galactic nuclei (AGNs) is lower in clusters than in the field. This can result from the suppression of galaxy-galaxy mergers in high-velocity dispersion (σv) clusters, if the formation and/or fueling of AGNs is directly related to the merging process. Aims. We investigate the existence of a relation between fAG...