Chandra X-Ray Observatory
Last modified: 7 September 2018

VTP: Voronoi Tessalation and Percolation

A "friends-of-friends" source detection algorithm. VTP is well-suited to finding low surface brightness, irregularly shaped sources. The CXC tool vtpdetect is an implementation of the VTP method described in Ebeling et al. 1996, MNRAS, 281, 799.

For more information, read the Detecting Sources in Imaging Observations - Using vtpdetect thread.

Last modified: 7 September 2018
Smithsonian Institute Smithsonian Institute

The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA.   Email: Smithsonian Institution, Copyright © 1998-2017. All rights reserved.