line-of-sight velocity

line-of-sight velocity

See radial velocity.

line-of-sight velocity

[′līn əv ′sīt və′läs·əd·ē]
(mechanics)
References in periodicals archive ?
8) To resolve the line-of-sight velocity component, the size of the point spread function (PSF) appearing as a result of optical diffraction is correlated to the distance of a particle to the focus plane.
The line-of-sight velocity of the cloud is ~28-30 km/s.
As the line-of-sight velocity difference between the components is only ~600 km/s, the merger must be occurring nearly in the plane of the sky and the cores passed through each other ~100 Myr ago.
Several teams detected it in the late 1990s by measuring small variations in the star's line-of-sight velocity caused by the planet's gravitational tug (S&T: June 2001, page 34).
Most scientists assumed that the unmeasured components would be comparable to the line-of-sight velocity.
A Canadian astronomer suggested that sectoral oscillations of an l = 2, m = 2 mode, and not a Jupiter-mass planet, are responsible for the line-of-sight velocity variations in the Sun-like star 51 Pegasi (May issue, page 24).