On the disk-thickness of spiral galaxies

Details On the disk-thickness of spiral galaxies On the disk-thickness of spiral galaxies

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...112..116r&link_type=abstract

Astronomy and Astrophysics, vol. 112, no. 1, Aug. 1982, p. 116-119. Deutsche Forschungsgemeinschaft

Astronomy and Astrophysics

Astrophysics

5

Astronomical Models, Disk Galaxies, Spiral Galaxies, Stellar Evolution, Density Distribution, Least Squares Method, Thickness, Three Dimensional Models

Scientific paper

The light distributions of the two edge-on galaxies NGC 4244 and NGC 5907, which are seen as pure disk systems without any noticeable trace of a bulge, are fitted by three-dimensional models using a self-consistent disk model. It is thought that most disk galaxies should show some increase in disk thickness with the radial coordinate r. A relation for disk thickness as a function of r and the mean age of the stars is given.

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