high-velocity star

high-velocity star

[′hī və¦läs·əd·ē ′stär]
(astronomy)
A star that moves across the galactic track along which the majority of the stars execute their galactic rotation, thus exhibiting high velocity with respect to the sun and low velocity with respect to the galactic center.
References in periodicals archive ?
Mira is also known for being a high-velocity star, plunging southward through our part of the Milky Way at an unusual 130 kilometers (80 miles) per second.
Eta is a high-velocity star heading north across the sky at 0".8 per year and receding from us at 87 kilometers per second.
Dr Tommaso Marchetti, one of the astronomers from Leiden University in the Netherlands, said: "Rather than flying away from the Galactic centre, most of the high-velocity stars we spotted seem to be racing towards it.
Summary: TEHRAN (FNA)- A team of astronomers using the latest set of data from ESA's Gaia mission to look for high-velocity stars being kicked out of the Milky Way were surprised to find stars instead sprinting inwards -- perhaps from another galaxy.
I was amazed how well we could apply the methods we developed with simulated stars to the high-precision data for the innermost high-velocity stars close to the supermassive black hole."
By comparing Hubble Space Telescope images from 1998 and 2015, Kevin Luhman (Penn State University) and colleagues found that Source X is moving at more than 55 km/s (120,000 mph) across the sky, away from the same origin point as two other high-velocity stars: the Becklin-Neugebauer (BN) object and Source I.
They include discussion of heliosphere boundary measurements, interstellar grain alignments, molecular gas, stars, star formation, planetary physics, exoplanetary systems, high-velocity stars, metal-poor stars, galactic archaeology, semianalytic vs.
Also, there is an unusually large number of high-velocity stars around 30 Doradus.
Also, there are an unusually large number of high-velocity stars around 30 Doradus.

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