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Proceedings Paper

DPhot photometry method for the Spitzer Space Telescope
Author(s): David G. Elliott
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Paper Abstract

DPhot is a "deep photometry" computer program for measuring faint point sources from an overlapping set of astronomical images without making a mosaic. A grid of points is written on the sky. The point response function is used to calculate influence coefficients between the grid points and the pixels. A least-squares fit to the pixel data gives flux density measurements at small groups of grid points overlying images of sources. Summing and centroiding the groups of measurements gives a source list of flux densities and coordinates.

Paper Details

Date Published: 15 June 2006
PDF: 8 pages
Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 626537 (15 June 2006); doi: 10.1117/12.659989
Show Author Affiliations
David G. Elliott, Consultant (United States)


Published in SPIE Proceedings Vol. 6265:
Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter
John C. Mather; Howard A. MacEwen; Mattheus W. M. de Graauw, Editor(s)

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