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arXiv · astro-ph/0111477

An optimal extraction of spatially blended spectra

R. I. Hynes
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Abstract

We describe an algorithm to optimally extract individual spectra of blended sources from a long slit spectrum. A semi-analytic model for the spatial profile is used: a Voigt profile for the undersampled core with a numerical correction applied to the wings. This is derived from an isolated source which must also be placed on the slit. Chi^2 fitting is used to separate the blended components with maximum weight given to the best data. We demonstrate the successful application of the algorithm to data on two X-ray binaries in crowded fields: XTE J2012+381 and V404 Cyg.

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R. I. Hynes. 2001-11-26. An optimal extraction of spatially blended spectra. https://doi.org/10.1051/0004-6361%3A20011657

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