Optical and far-IR luminosity functions of Markarian galaxies

Details Optical and far-IR luminosity functions of Markarian galaxies Optical and far-IR luminosity functions of Markarian galaxies

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...196...59x&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 196, no. 1-2, May 1988, p. 59-70. Research supported by the Ministero della Pu

Astronomy and Astrophysics

Astrophysics

9

Far Infrared Radiation, Luminous Intensity, Markarian Galaxies, Seyfert Galaxies, Space Density

Scientific paper

A new optical luminosity function of Markarian galaxies is presented, which improves on earlier determinations both because of the improved data situation (the sample is complete, Zwicky magnitudes and redshifts are available for essentially all objects) and for a more accurate treatment of several effects: Tully-Fisher distances have been used for low-z-galaxies. The effect of inhomogeneities in the galaxy distribution has been investigated. Luminosity functions have been constructed both including and excluding Seyferts. It is found that Markarian galaxies comprise an important fraction of IRAS galaxies above LIR ≅ 2.1011L_sun;. Finally, it is shown that the far-IR to blue luminosity ratios of these sources increase with luminosity just as expected if the bulk of the energy comes from actively star-forming regions, cocooned by dust.

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