Isolines of surface density and z-coordinates of cepheids

Details Isolines of surface density and z-coordinates of cepheids Isolines of surface density and z-coordinates of cepheids

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26at....7..103b&link_type=abstract

Astronomical and Astrophysical Transactions, vol. 7, Issue 2, pp.103-105

Astronomy and Astrophysics

Astronomy

Galaxy, Density Distribution, Cepheids

Scientific paper

Lines of equal surface densities and 2-coordinates for Cepheids within 3 kpc from the Sun are computed using Berdnikov's (1987) distances and a standard software GRAFOR (Bayakovssky et al, 1985). Large complexes of Cepheids spaced at about 1 kpc are outlined along the Car-Sgr arm, the older one being located above the mean galactic plane and younger ones, placed by its sides - slightly below the plane. Thus main results of Alfaro el af. (1992) concerning the relation of the galactic disk relief to density of young clusters are confirmed. Corrugations of galactic plane are not confined to the spiral arms whereas large, dense star complexes are confined, especially within the Car-Sgr arm, plausibly because it is a part of the grand-design spiral pattern of the Galaxy.

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