A method and system for identifying emission line stars based on LAMOST spectral data

Abstract

The application discloses a kind of based on LAMOST spectral data's emission line star identification method and system, the method includes: constructing LAMOST Dr9 in resolution spectral data and carrying out data preprocessing, obtain spectral data feature matrix;Based on deep residual network, shortcut residual path is introduced, and Hα-ResNet model is constructed;Hα-ResNet model is trained to two categories, and the two classification Hα-ResNet model after training is constructed and is identified to two categories, obtain emission line star sample data;Hα-ResNet model is trained to six categories after based on emission line star sample data pre-processing, and the six classification Hα-ResNet model after training is constructed and is identified to six categories, obtain emission line star identification result.The application can classify multiple emission line stars and improve the classification and identification accuracy of spectral data.The application is a kind of based on LAMOST spectral data's emission line star identification method and system, can be widely applied in astronomical data processing technical field.

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