Premium
Discrepancy of masses in double galaxies
Author(s) -
Karachentsev I. D.
Publication year - 1976
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.19762970613
Subject(s) - physics , astrophysics , luminosity , galaxy , luminous infrared galaxy , mass ratio , galaxy group , elliptical galaxy , astronomy
The estimations of integral masses of double galaxies are obtained taking as a basis recent observational data on 150 pairs of galaxies with measured radial velocities for both components. It is shown that the mean orbital mass‐to‐luminosity ratio essentially depends on a morphological type of double galaxies and on a kind of interaction between pair components. Minimal values of mass‐to‐luminosity ratio take place for double galaxies having linear features of interaction, namely: bridges, tails; as well for pairs with compact and Markarian components, too. The empirical relation between mass‐to‐luminosity ratio and linear separation of pair components do not indicate on an existence of a hidden stellar coronae around double galaxies.