Statistical study of properties of Seyfert and starburst galaxies

Journal Article · Fri Jul 01 04:00:00 EDT 1988 · Astrophys. J., Suppl. Ser.; (United States)

DOI:https://doi.org/10.1086/191273· OSTI ID:6766276

Dahari, O; De Robertis, M M

Spectral and morphological data for 282 Seyfert and emission-line galaxies spanning radio to X-ray wavelengths are compiled. The data include a large number of optical emission-line measurements which have not been reported previously. These data are intended to provide a convenient summary of the relevant properties of these galaxies, as well as a data base to search for correlations among the various parameters in order to obtain a better understanding of the active galaxy phenomenon. The paper presents the data and analyzes the distributions of various properties of Seyfert 1 and Seyfert 2 galaxies and starburst galaxies. It is found that Seyferts 2s have a higher 60 micron/forbidden O III 5007 A flux ratio than Seyfert 1s. This result, combined with the fact that Seyfert 2s are more heavily reddened, indicate that they have a higher dust content. It is also found that starburst nuclei are comparable to Seyfert 2s in far-infrared and 20 cm luminosities, although their optical spectra are markedly different. 116 references.

• Research Organization: Space Telescope Science Institute, Baltimore, MD (USA); York Univ., Downsview (Canada)
• OSTI ID: 6766276
• Journal Information: Astrophys. J., Suppl. Ser.; (United States), Journal Name: Astrophys. J., Suppl. Ser.; (United States) Vol. 67; ISSN APJSA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC DUST
COSMIC RADIO SOURCES
DUSTS
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
GALAXIES
GALAXY NUCLEI
IONIZING RADIATIONS
MATHEMATICS
MORPHOLOGY
RADIATIONS
RADIO GALAXIES
RADIOWAVE RADIATION
SEYFERT GALAXIES
SPECTRA
STAR EVOLUTION
STATISTICS
VISIBLE SPECTRA
X RADIATION