2003/01/07 by L. B. Lucy, J. R. Walsh · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Electromagnetic Scattering and Analysis #Seismic Imaging and Inversion Techniques #Seismic Waves and Analysis #astro-ph
paper · pdf · doi:10.1086/368144
Accepted by AJ. 20 pages, 4 figures
arxiv created 2003/01/07 · openalex publication_date 2003/03/25 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
Two iterative techniques are described for decomposing a long-slit spectrum into the individual spectra of the point sources along the slit and the spectrum of the underlying background. One technique imposes the strong constraint that the spectrum of the background be spatially invariant; the other relaxes this constraint. Both techniques are applicable even when there are numerous overlapping point sources superposed on a structurally complex background. The techniques are tested on simulated, as well as real, long-slit data from the ground and from space.