Classification of 4XMM-DR9 sources by machine learning
نویسندگان
چکیده
ABSTRACT The ESA’s X-ray Multi-mirror Mission (XMM–Newton) created a new high-quality version of the XMM–Newton serendipitous source catalogue, 4XMM-DR9, which provides wealth information for observed sources. 4XMM-DR9 catalogue is correlated with Sloan Digital Sky Survey (SDSS) DR12 photometric data base and AllWISE base; we then get sources from X-ray, optical, and/or infrared bands obtain XMM–WISE, XMM–SDSS, XMM–WISE–SDSS samples. Based on large spectroscopic surveys SDSS Large Area Multi-object Fiber Spectroscopic Telescope (LAMOST), cross-match sample known spectral classes, samples stars, galaxies, quasars. distribution quasars as well all classes stars in 2D parameter space presented. Various machine-learning methods are applied to different bands. better classified results retained. For band, rotation-forest classifier performs best. bands, random-forest algorithm outperforms other methods. LogitBoost shows its superiority. Thus, input patterns by their respective models that these best Their membership probabilities individual assigned. result will be great value further research greater detail.
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2021
ISSN: ['0035-8711', '1365-8711', '1365-2966']
DOI: https://doi.org/10.1093/mnras/stab744