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On the radio continuum, molecular gas content and optical emission of Markarian galaxies with Seyfert nuclei

Published online by Cambridge University Press:  01 December 2004

Dalia S. Reichert
Affiliation:
Universidade Federal de Santa Maria, CCNE – Departamento de Física - LARIE, Campus Universitário, 97150-900 Santa Maria RS, Brazil
Everton Lüdke
Affiliation:
Universidade Federal de Santa Maria, CCNE – Departamento de Física - LARIE, Campus Universitário, 97150-900 Santa Maria RS, Brazil
Rogemar A. Riffel
Affiliation:
Universidade Federal de Santa Maria, CCNE – Departamento de Física - LARIE, Campus Universitário, 97150-900 Santa Maria RS, Brazil
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Abstract

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In this paper we interpret C and X-band radio continuum observations of a sample of Markarian galaxies. The results are briefly discussed. Seyfert 2 galaxies show sistematically higher HI mass-to-blue magnitude than Seyfert 1 galaxies, as well as higher radio to far-infrared luminosities. The observational properties are interpreted in terms of simple non-thermal and dust emission. We obtained radio brightness temperatures, equipartion magnetic fields and total magnetic densities for the disks. Upper limits for thermal densities are derived from simple free-free emission. Star formation rates and mean supernova rates are estimated for individual Markarian galaxies. The SFR values of the most luminous Markarian galaxies are considerably higher than those found in compact blue dwarf galaxies and also in gas-rich, early-type spirals.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
POSTERS
Copyright
© 2004 International Astronomical Union