X-Ray Weak Broad-Line Quasars: Absorption or Intrinsic X_RAY Weakness ?

Details X-Ray Weak Broad-Line Quasars: Absorption or Intrinsic X_RAY Weakness ? X-Ray Weak Broad-Line Quasars: Absorption or Intrinsic X_RAY Weakness ?

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop..943r&link_type=abstract

Chandra Proposal ID #03700668

Physics

Chandra Proposal Id #03700668

Scientific paper

We propose to observe a sample of 23 soft X-ray weak, optically red quasars, discovered by the Hamburg Quasar Survey. The lack of detection in the ROSAT PSPC, despite their relatively bright optical emission make them a peculiar class of quasars, classified as type 1 in the optical but type 2 in the X-rays. Establishing the X-ray properties of these objects is important for (1) the X-ray background synthesis models (they could be the missing "QSO2s"), (2) the unified models (they challenge the traditional torus model) and (3) the long debated problem on the discrepancy between optical and X-ray luminosity functions. With 180 ks with ACIS-S we can observe a well defined sample of sources and measure their absorption column density in many cases.

Affiliated with

Also associated with

No associations

Rating

X-Ray Weak Broad-Line Quasars: Absorption or Intrinsic X_RAY Weakness ? 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 X-Ray Weak Broad-Line Quasars: Absorption or Intrinsic X_RAY Weakness ?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-Ray Weak Broad-Line Quasars: Absorption or Intrinsic X_RAY Weakness ? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1488636