Detection of compact sources with multifilters

Details Detection of compact sources with multifilters Detection of compact sources with multifilters

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002spie.4847...50h&link_type=abstract

Astronomical Data Analysis II. Edited by Starck, Jean-Luc; Murtagh, Fionn D. Proceedings of the SPIE, Volume 4847, pp. 50-61

Statistics

Methodology

3

Scientific paper

We present scale-adaptive filters that optimize the detection/separation of compact sources on a background. We assume that the sources have a multiquadric profile and a background modeled by an homogeneous and isotropic random field characterized by a power spectrum. We make an n-dimensional treatment but consider two interesting physical applications related to clusters of galaxies (Sunyaev-Zel'dovich effect and X-ray emission). We extend this methodology to multifrequency maps, introducing multifilters that optimize the detection on clusters on microwave maps. We apply these multifilters to small patches (corresponding to 10 frequency channels) of the sky such as the ones that will produce the future ESA Planck mission. Our method predicts a number of ≍10000 clusters in 2/3 of the sky, being the catalog complete over fluxes S > 170mJy at 300GHz.

Affiliated with

Also associated with

No associations

Rating

Detection of compact sources with multifilters 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 Detection of compact sources with multifilters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of compact sources with multifilters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1310919