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August 2001 arXiv papers — page 25

Showing 2,401–2,401 of 2,401 papers

  1. Cosmic-Ray Rejection by Laplacian Edge Detection

    astro-ph

    Pieter G. van Dokkum

    Conventional algorithms for rejecting cosmic-rays in single CCD exposures rely on the contrast between cosmic-rays and their surroundings, and may produce erroneous results if the Point Spread Function (PSF) is smaller than the largest cosmic-rays. This paper describes a robust algorithm for cosmic-ray rejection, based on a variation of Laplacian edge detect