DPhot photometry method for the Spitzer Space Telescope

David G. Elliott

doi:10.1117/12.659989

15 June 2006 DPhot photometry method for the Spitzer Space Telescope

David G. Elliott

Proceedings Volume 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter; 626537 (2006) https://doi.org/10.1117/12.659989
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

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.

Citation Download Citation

David G. Elliott "DPhot photometry method for the Spitzer Space Telescope", Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 626537 (15 June 2006); https://doi.org/10.1117/12.659989

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