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The equidensitometric determination of angular diameters of compact galaxies
Author(s) -
Richter N.,
Högner W.
Publication year - 1977
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.19772980505
Subject(s) - physics , globular cluster , astrophysics , angular diameter , galaxy , homogeneous , brightness , optics , stars , thermodynamics
On Tautenburg Schmidt plates in system V taken at seeings of about 2″ the determination of real angular diameters of compact galaxies down to 4″ is possible. Diameter‐magnitude diagrams of objects in four fields around the globular cluster M 3 show the possibility for getting homogeneous material concerning both the uniformity of the equidensitometric copying process and the measuring process with the iris photometer in order to determine the integral brightness of single galaxies from their limiting equidensities.