The velocity dispersion of the caustic network due to random motion of individual stars in the lensing galaxy

We present a method of computing the velocity distribution of the caustic network due to the random motion of stars in the lensing galaxy. This method is illustrated on the example of the two-point mass lens and then applied to a large sample of stars. We conclude that the proper motion of the stars...

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Veröffentlicht in:	The Astrophysical journal 1993-06, Vol.409 (2), p.537-547
Hauptverfasser:	Kundik, Tomislav, Witt, Hans J., Chang, Kyongae
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics Characteristics and properties of external galaxies and extragalactic objects Earth, ocean, space Exact sciences and technology Gravitational lenses and luminous arcs Stellar systems. Galactic and extragalactic objects and systems. The universe
Online-Zugang:	Volltext
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