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Title:
The radio spectra of Markarian galaxies
Authors:
Kojoian, G.; Dickinson, D. F.; Tovmassian, H.; Purton, C. R.; Sramek, R. A.
Affiliation:
AA(Massachusetts, University, Amherst, Mass; Pahlavi University, Shiraz, Iran), AB(Smithsonian Astrophysical Observatory and Harvard College Observatory, Cambridge, Mass.), AC(Biurakanskaia Astrofizicheskaia Observatoriia, Yerevan, Armenian SSR; National Radio Astronomy Observatory, Green Bank, W. Va.), AD(CRESS; York University, Toronto, Canada)
Publication:
Astrophysical Journal, vol. 203, Jan. 15, 1976, pt. 1, p. 323-328. (ApJ Homepage)
Publication Date:
01/1976
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
Astronomical Spectroscopy, Markarian Galaxies, Radio Galaxies, Radio Spectra, Seyfert Galaxies, Active Galaxies, Emission Spectra, Power Spectra, Radiant Flux Density, Spectrum Analysis
DOI:
10.1086/154082
Bibliographic Code:
1976ApJ...203..323K

Abstract

Radio flux densities between 2.7 and 15.5 GHz are given for 16 Markarian galaxies. Spectra for these objects are obtained from these and previously published data. The Seyfert-type galaxies show power-law spectra with an average index of -0.82, except for MRK 348, which is an active galaxy with a complex spectrum. The Markarian galaxies with featureless optical spectra have rather flat radio spectra, similar to the BL Lacertae-type objects.

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