Prediction of stellar temperature and metallicity through machine learning

Fig. 1: Unprocessed data: temperature histogram for the trial dataset of 5000 entries (left) and infrared spectrum were zero-intensity regions (right).
Fig. 2: Preprocessed data: temperature histogram for the trial dataset of 5000 entries (left) and cleaned infrared spectrum (right).
Fig. 3: Pairplots for the labels used.
Fig. 4: True vs Predicted temperatures using the optical spectra, analysed by the neural network.
Fig. 5: Metallicity vs line depth scatterplot.

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