Pairing properties of Markarian starburst Galaxies

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Markarian Galaxies, Red Shift, Spiral Galaxies, Starburst Galaxies, Stellar Luminosity, Far Infrared Radiation, H Alpha Line, Luminous Intensity, Star Formation, Stellar Magnitude, Stellar Spectrophotometry

Scientific paper

The environmental parameters of 516 non-Seyfert Markarian galaxies were studied in a redshift-bounded sample, supplemented by new spectra and redshift measures for possible companions, in order to evaluate their occurrence in galaxy pairs, defined through quantitative criteria. It was found that one-third of these galaxies occur in pairs (while only 6 to 10 percent of optically-selected galaxies are known to be paired). A comparison of various optical and IR properties of paired and nonpaired Markarian galaxies showed no differences in the shape of the optical, far-IR, or H-alpha luminosity functions. It was found, however, that the Markarian component is brighter than the other galaxy in each pair by 0.66 magnitude in the mean at B.

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