Why X-ray--Selected AGN Appear Optically Dull

Details Why X-ray--Selected AGN Appear Optically Dull Why X-ray--Selected AGN Appear Optically Dull

2006-03-13

arxiv.org/abs/astro-ph/0603313v1

Astrophys.J.645:115-133,2006

Astronomy and Astrophysics

Astrophysics

Accepted for publication in The Astrophysical Journal; 20 pages High-res version here: http://satchmo.as.arizona.edu/~jrigby/o

Scientific paper

10.1086/504067

We investigate why half of X-ray--selected active galactic nuclei (AGN) in deep surveys lack signs of accretion in their optical spectra. The majority of these ``optically--dull'' AGN are no more than 6 times fainter than their host galaxies in rest-frame R-band; as such, AGN lines are unlikely to be overwhelmed by stellar continuum in at least half the sample. We find that optically--dull AGN have the mid--infrared emission and L(x)/L(IR) ratios characteristic of local Seyferts, suggesting that the cause of optical dullness is not missing UV--optical continua. We compare the morphologies of 22 optically--dull and 9 optically--active AGN at 0.5

Affiliated with

Also associated with

No associations

Rating

Why X-ray--Selected AGN Appear Optically Dull 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 Why X-ray--Selected AGN Appear Optically Dull, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Why X-ray--Selected AGN Appear Optically Dull will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-69124