ACIS Sub-Pixel Resolution: Improvement in Point Source Detection

Details ACIS Sub-Pixel Resolution: Improvement in Point Source Detection ACIS Sub-Pixel Resolution: Improvement in Point Source Detection

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aspc..442..139a&link_type=abstract

Astronomical Data Analysis Software and Systems XX. ASP Conference Proceedings, Vol. 442, proceedings of a Conference held at Se

Astronomy and Astrophysics

Astronomy

Scientific paper

We investigate how to achieve the best possible ACIS spatial resolution by binning in ACIS sub-pixel and applying an event repositioning algorithm after removing pixel-randomization from the pipeline data. We quantitatively assess the improvement in spatial resolution by (1) measuring point source sizes and (2) detecting faint point sources. The size of a bright (but no pile-up), on-axis point source can be reduced by 20-30%. With the improved resolution, we detect ˜20% more faint sources when embedded in the extended, diffuse emission in a crowded field. We further discuss the false source rate of ˜10% among the newly detected sources, using a few ultra-deep observations.

Affiliated with

Also associated with

No associations

Rating

ACIS Sub-Pixel Resolution: Improvement in Point Source Detection 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 ACIS Sub-Pixel Resolution: Improvement in Point Source Detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ACIS Sub-Pixel Resolution: Improvement in Point Source Detection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-989227