Premium
Three‐dimensional distribution of high‐velocity stars
Author(s) -
Greiner J.
Publication year - 1990
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2113110105
Subject(s) - physics , funnel , stars , astrophysics , galaxy , galactic center , rotation (mathematics) , astronomy , spiral galaxy , geometry , chemistry , organic chemistry , mathematics
Abstract Numerical calculations support the conjecture that high velocity stars born in or near the rotating disk are not distributed spherically throughout the galaxy. Instead an empty funnel region forms around the rotation axis of the galaxy, where no stars reside. The funnel appears only for high velocity stars, such as old pulsars. Within about 50 kpc distance from the galactic center the funnel shape is almost not dependent on the existence of a massive corona.