Galaxy Zoo 1: data release of morphological classifications for nearly 900 000 galaxies

摘要: Morphology is a powerful indicator of galaxy’s dynamical and merger history. It strongly correlated with many physical parameters, including mass, star formation history the distribution mass. The Galaxy Zoo project collected simple morphological classifications nearly 900 000 galaxies drawn from Sloan Digital Sky Survey, contributed by hundreds thousands volunteers. This large number allows us to exclude classifier error, measure influence subtle biases inherent in classification. paper presents data project, alongside measures classification accuracy bias. are now publicly available full catalogues can be downloaded electronic format http://data.galaxyzoo.org.