The orbits of moving clusters in the galactic dynamical models

Details The orbits of moving clusters in the galactic dynamical models The orbits of moving clusters in the galactic dynamical models

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.218....1m&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 218, no. 1, p. 1-11

Astronomy and Astrophysics

Astrophysics

2

Astronomical Models, Milky Way Galaxy, Orbits, Star Clusters, Coronas, Potential Fields, Velocity Measurement

Scientific paper

The orbits of nine moving star clusters distinguished by Agekian and Orlov (1984) are studied in the rotationally symmetric field of the Galaxy. The three galactic models are considered: the potentials of Sala (1987), Allen and Martos (1986), Kutuzov and Osipkov (1989). In the first model applied to a local galactic region in the solar circle vicinity, the orbit of each star is periodic in the meridional plane. The presence of two streams of the moving clusters is assumed. The superclusters of Sirius and Hyades are connected with these streams. For the two latter global galactic models, the orbits of principal stars in the moving clusters, as well as the ones of the stars which are probable non-members of clusters are calculated. A typical lifetime of the moving clusters in the galactic field is estimated.

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