Application of Maximum Likelihood Method to the Swift/BAT Hard X-ray Survey: Preliminary Results

Details Application of Maximum Likelihood Method to the Swift/BAT Hard X-ray Survey: Preliminary Results Application of Maximum Likelihood Method to the Swift/BAT Hard X-ray Survey: Preliminary Results

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..380..163a&link_type=abstract

At the Edge of the Universe: Latest Results from the Deepest Astronomical Surveys ASP Conference Series, Vol. 380, proceedings o

Astronomy and Astrophysics

Astronomy

Scientific paper

The BAT instrument, on board the Swift observatory, is surveying the hard X-ray sky to unprecedented sensitivity. An implementation of Spatial Model fitting tep{stro05} is applied to BAT data. A test of this algorithm on a selected 90x90 deg^2 field leads to the detection of 62 hard X-ray sources, of which, 30 are new and 20 are still unidentified, and a <1 mCrab sensitivity in less than 1 Ms exposure. The extragalactic source counts distribution (14-170 keV) is consistent with an Euclidean function and yields an AGN surface density of 0.028±0.002 deg-2 above a limiting flux of 10-11erg cm-2 s-1. Moreover, BAT is a sensitive instrument for the detection of new Compton-thick objects because their emission peaks around 20,keV.

Affiliated with

Also associated with

No associations

Rating

Application of Maximum Likelihood Method to the Swift/BAT Hard X-ray Survey: Preliminary Results 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 Application of Maximum Likelihood Method to the Swift/BAT Hard X-ray Survey: Preliminary Results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Application of Maximum Likelihood Method to the Swift/BAT Hard X-ray Survey: Preliminary Results will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1109186