Evolutionary Implications from SDSSJ085338.27+033246.1: A Spectacular N arrow-Line Seyfert 1 Galaxy with Young Post-starburst

Details Evolutionary Implications from SDSSJ085338.27+033246.1: A Spectacular N arrow-Line Seyfert 1 Galaxy with Young Post-starburst Evolutionary Implications from SDSSJ085338.27+033246.1: A Spectacular N arrow-Line Seyfert 1 Galaxy with Young Post-starburst

2006-05-16

arxiv.org/abs/astro-ph/0605377v1

Astrophys.J.648:158-163,2006

Astronomy and Astrophysics

Astrophysics

20 pages, 5 figures, accepted by ApJ

Scientific paper

10.1086/505791

We analyze the physical properties of post-starburst AGN SDSS J085338.27+033246.1 according to its optical spectrum and discuss its implications on AGN's evolution. The spectra PCA method is developed to extract emission lines and absorption features from the total light spectrum. The emission-line analysis indicates that the object can be classified as a NLS1 with FeII/H$\beta_{\rm{B}}=2.4\pm0.2$, large Eddington ratio ($\sim0.34$), small black hole mass ($\sim1.1\times10^{7}M_{\odot}$) and intermediately strong radio emission. A simple SSP model indicates that the absorption features are reproduced by a $\sim$100 Myr old starburst with a mass of $\sim7\times10^{9}M_{\odot}$ rather well. The current SFR $\sim3.0M_{\odot}\rm{yr^{-1}}$ inferred from the [OII] emission is much smaller than the past average SFR$\sim70M_{\odot}\rm{yr^{-1}}$, however. The line ratio diagnosis using the BPT diagrams indicates that the narrow emission lines are almost entirely emitted from HII regions. We further discuss a possible evolutionary path that links AGN and starburst phenomena.

Affiliated with

Also associated with

No associations

Rating

Evolutionary Implications from SDSSJ085338.27+033246.1: A Spectacular N arrow-Line Seyfert 1 Galaxy with Young Post-starburst 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 Evolutionary Implications from SDSSJ085338.27+033246.1: A Spectacular N arrow-Line Seyfert 1 Galaxy with Young Post-starburst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolutionary Implications from SDSSJ085338.27+033246.1: A Spectacular N arrow-Line Seyfert 1 Galaxy with Young Post-starburst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-276259