Dependence of galaxy properties on viewing angle
Published Oct 1, 1991 · D. Burstein, M. Haynes, S. Faber
Nature
55
Citations
0
Influential Citations
Abstract
Galaxies are three-dimensional objects projected onto the sky at random angles of inclination. Deduction of their true structure from their appearance requires an understanding of the variation of their apparent diameter, luminosity and surface brightness with viewing angle. But these variations in turn depend on galactic structure. It has taken astronomers several decades to realize that only with a direct knowledge of galactic distances can these two effects be disentangled.
Study Snapshot
Key takeawayKnowing galactic distances helps disentangle the relationship between galaxy properties and viewing angle, enabling accurate derivation of their true structure.
PopulationOlder adults (50-71 years)
Sample size24
MethodsObservational
OutcomesBody Mass Index projections
ResultsSocial networks mitigate obesity in older groups.