The Origin of the Featureless Blue Continuum in Seyfert 2 Galaxies

Details The Origin of the Featureless Blue Continuum in Seyfert 2 Galaxies The Origin of the Featureless Blue Continuum in Seyfert 2 Galaxies

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...19711011s&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #110.11; Bulletin of the American Astronomical Society, Vol. 32, p.1590

Astronomy and Astrophysics

Astronomy

Scientific paper

Evaluating the amount of blue featureless continuum and interpreting its origin has always been a problem in the analysis of the nuclear spectra of Seyfert 2 galaxies. Here we address this problem using IUE archival data and ground-based spectra, observed with matching apertures, of 30 Seyfert 2's. These spectra cover the spectral region from 1200Å to 10000Å. By comparing their optical stellar absorption features and continuum shapes with those of normal galaxies, and assuming that the best matching template to the optical part of the spectrum is also representative of the stellar population in the ultraviolet, we separate the contribution from stars to this band. We show that, in most of the cases, at least 50% of the observed emission at 1400Å is due to the host galaxy stellar population. We study the age composition of these spectra using a stellar population synthesis technique. We also show that previously observed differences between the ratio of ultraviolet to soft X-ray flux in Seyfert 1's and Seyfert 2's can be reconciled, within the Unified Model, once we take into account the stellar population contribution to the ultraviolet spectrum of Seyfert 2's. This work was supported by a NASA grant.

Affiliated with

Also associated with

No associations

Rating

The Origin of the Featureless Blue Continuum in Seyfert 2 Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Origin of the Featureless Blue Continuum in Seyfert 2 Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Origin of the Featureless Blue Continuum in Seyfert 2 Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1727976