The measured velocity dispersion of the stars in NGC 2552 is relatively low a mere 19 ?2 km / s.
12.
Here R is the radius at which the velocity dispersion is being measured, and M is the mass within that radius.
13.
Now we let this pulse propagate through a fibre with D > 0, it will be affected by group velocity dispersion.
14.
The virial mass and radius are generally defined for the radius at which the velocity dispersion is a maximum, i . e.
15.
By correcting the phase distortion due to velocity dispersion, seismic data with enhanced vertical resolution can yield correct timings for lithological identification.
16.
The D ? relation, used in elliptical galaxies, relates the angular diameter ( D ) of the galaxy to its velocity dispersion.
17.
He also developed accurate methods for measuring velocity dispersions of galaxies, analyzed the Virgocentric infall, and performed precise analyses of gravitational lenses.
18.
Seismic inverse Q-filtering employs a wave propagation reversal procedure that compensates for energy absorption and corrects wavelet distortion due to velocity dispersion.
19.
For example, when an ultrashort pulse passes through a block of glass, the glass medium broadens the pulse due to group velocity dispersion.
20.
The members of this cluster are orbiting the center of mass with a peak velocity dispersion of 7.9 km s " 1.
