Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ap.....41...14k&link_type=abstract
Astrophysics, Volume 41, Issue 1, pp.14-20
Astronomy and Astrophysics
Astrophysics
Scientific paper
1200 strongly flattened galaxies with axis ratio b/a ≤ 0.15 were selected from the UGC catalogue, contained in the Abadumani Merged Catalogue of Galaxies, and their properties were studied. The possibility of using strongly flattened galaxies and several other samples of galaxies according to their morphological type as a distance indicator has been examined by the Tully-Fisher relation. The investigation has shown that angular diameters of strongly flattened as well as flat, seen edge-on galaxies designated as F and L in the MCG catalogue can be used for the estimation of distance moduli with accuracy O.m7. The distribution of absolute magnitudes of strongly flattened galaxies was approximated by analytic Schechter expression with main parameters M* = -21.m2 and α = -1.0. The statistical method of the nearest companion applied to the apparent distribution of strongly flattened galaxies has shown that these galaxies are considerably more frequently found in mixed pairs and multiple systems than spirals.
Borchkhadzi T. M.
Kogoshvili N. G.
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