期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 526, 期 3, 页码 4768-4786出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stad2919
关键词
methods: statistical; catalogues; software: data analysis; galaxies: bar; galaxies: general; galaxies: interaction
This study presents detailed morphology measurements for 8.67 million galaxies using deep learning models trained on Galaxy Zoo volunteer votes. The models can accurately predict the fraction of volunteers selecting each answer for every GZ question. The extended measurement range allows for full overlap with complementary surveys.
We present detailed morphology measurements for 8.67 million galaxies in the DESI Legacy Imaging Surveys (DECaLS, MzLS, and BASS, plus DES). These are automated measurements made by deep learning models trained on Galaxy Zoo volunteer votes. Our models typically predict the fraction of volunteers selecting each answer to within 5-10 per cent for every answer to every GZ question. The models are trained on newly collected votes for DESI-LS DR8 images as well as historical votes from GZ DECaLS. We also release the newly collected votes. Extending our morphology measurements outside of the previously released DECaLS/SDSS intersection increases our sky coverage by a factor of 4 (5000-19 000 deg2) and allows for full overlap with complementary surveys including ALFALFA and MaNGA.
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