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- W3103466076 abstract "In this paper, we apply a new statistical analysis technique, Mean Field approach to Bayesian Independent Component Analysis (MF-ICA), on galaxy spectral analysis. This algorithm can compress the stellar spectral library into a few Independent Components (ICs), and galaxy spectrum can be reconstructed by these ICs. Comparing to other algorithms which decompose a galaxy spectrum into a combination of several simple stellar populations, MF-ICA approach offers a large improvement in the efficiency. To check the reliability of this spectral analysis method, three different methods are used: (1) parameter-recover for simulated galaxies, (2) comparison with parameters estimated by other methods, and (3) consistency test of parameters from the Sloan Digital Sky Survey galaxies. We find that our MF-ICA method not only can fit the observed galaxy spectra efficiently, but also can recover the physical parameters of galaxies accurately. We also apply our spectral analysis method to the DEEP2 spectroscopic data, and find it can provide excellent fitting for those low signal-to-noise spectra." @default.
- W3103466076 created "2020-11-23" @default.
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- W3103466076 date "2016-03-01" @default.
- W3103466076 modified "2023-10-16" @default.
- W3103466076 title "Spectral Synthesis via Mean Field approach to Independent Component Analysis" @default.
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- W3103466076 doi "https://doi.org/10.1088/1674-4527/16/3/042" @default.
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