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4 papers · 2 filters
Ca depletion and the presence of dust in large scale nebulosities in radiogalaxies (I)
M. Villar-Martin, L. Binette
We show that the study of the Calcium depletion is a valid an highly sensitive method for investigating the chemical and physical history of the very extended ionized nebulae seen…
The internal dynamics of very flattened normal galaxies: Stellar distribution functions for NGC 4697
H. Dejonghe, V. De Bruyne, P. Vauterin +1
Using the photometry and the kinematic data, part of which acquired with the NTT, we constructed a 2-integral and a 3-integral distribution function for NGC 4697. We detected a nuc…
The extinction by dust in the outer parts of spiral galaxies
R. F. Peletier, E. A. Valentijn, A. F. M. Moorwood +3
To investigate the distribution of dust in Sb and Sc galaxies we have analyzed near-infrared and optical surface photometry for an unbiased sample of 37 galaxies. Since light in th…
Evolution of the Supercluster-Void Network
P. Frisch, J. Einasto, M. Einasto +5
Recently, the observed cellular nature of the large-scale structure of the Universe with its quasi-regular pattern of superclusters and voids has been pointed out by several author…