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The Korean Astronomical Society (한국천문학회)
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IMAGE PROCESSING TECHNIC USING MEDIAN FILTERING FOR COMET

미디안 필터링을 이용한 혜성의 이미지 처리기법

  • Park, Y.S. (Korea Astronomy and Space Science Institute) ;
  • Lee, C.U. (Korea Astronomy and Space Science Institute) ;
  • Jin, H. (Korea Astronomy and Space Science Institute) ;
  • Park, J.H. (Korea Astronomy and Space Science Institute) ;
  • Han, W.Y. (Korea Astronomy and Space Science Institute)
  • Published : 2007.12.31
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Abstract

The detection and measurement of faint features in cometary image is generally troublesome due to the high value of the ratio of the brightness of the nucleus to the tail, the large size and low surface brightness of the coma and tail and the disturbing presence of field stars trails. The image processing is based on background removal by median filtering. Sample results are shown for the case study of comet 73P/Schwassmann-Wachmann 3.

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References

  1. Belyaev, N. A., Kresak, L, Pittich, E. M., & Pushkarev, A. N., 1986, in Catalogue of Short-period Comets, (Bratislava: Slovak Acad. Sci.), 233
  2. Boehnhardt, H. & Birkle, K., 1994, Time variable coma structures in comet P/Swift-Tuttle, A&AS, 107, 101
  3. Boehnhardt, H., Kaürl, H. U. Keen, R.; Camilleri, P. Carvajal, J. Hale, A., 1995, Comet 73P/Schwassmann -Wachmann 3, IAU Circ., 6274
  4. Faúndez-Abans, M. & Oliveira-Abans, M., 1998, Looking for fine structures in galaxies, A&AS, 128, 289
  5. Fuse T., Yamamoto N., Kinoshita D., Furusawa H., & Watanabe J., 2007, Observations of Fragments Split from Nucleus B of Comet 73P/Schwassmann-Wachmann 3 with Subaru Telescope, PASJ, 59, 381 https://doi.org/10.1093/pasj/59.2.381
  6. Lara, L. M., Boehnhardt, H., Gredel, R., Gutierrez, P. J., Ortiz, J. L., Rodrigo, R., & Vidal-Nunez M. J., 2006, Pre-impact monitoring of Comet 9P/Tempel 1, the Deep Impact target, A&A, 445, 1151 https://doi.org/10.1051/0004-6361:20053833
  7. Sekanina, Z., 1989, Nuclei of two earth-grazing comets of fan-shaped appearance, AJ, 98, 2322