Obscured accretion and star formation at z~1

Computer Science

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

We present the properties of a sample of Type 2 AGN at z~1 selected by means of their [NeV]3426 emission line in the zCOSMOS bright survey. We use the ratio between the 2-10 keV flux and the [NeV] emission-line flux as a diagnostic tool to discover heavily obscured, possibly Compton-thick AGN, as recently done at brighter magnitudes in the SDSS. While Compton-thick absorption is suggested in some objects directly from their Chandra spectra, average X-ray properties are derived for most of our sources via summed spectra and stacking analysis. The quest for obscured quasars at z~1 is relevant to place constraints on the number density of Compton-thick AGN in a redshift interval close to the predicted peak of the missing X-ray background population at 20~keV. We also present tentative evidence for enhanced star formation in our obscured quasars, which is consistent with current popular scenarios of BH-galaxy co-evolution.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Obscured accretion and star formation at z~1 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 Obscured accretion and star formation at z~1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Obscured accretion and star formation at z~1 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1563980

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.