Mathematics – Logic
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21543529f&link_type=abstract
American Astronomical Society, AAS Meeting #215, #435.29; Bulletin of the American Astronomical Society, Vol. 42, p.384
Mathematics
Logic
Scientific paper
Galaxy Zoo has involved ¼ million of the public through the Internet in providing morphological classifications of nearly a million galaxies from the Sloan Digital Sky Survey (SDSS). Galaxy Zoo 2 is a follow on project and has already recorded more than 40 million detailed morphological classifications on the brightest 250,000 galaxies in the SDSS. Among the most interesting products is a catalog of 10,000 barred spirals - an order of magnitude increase on the sample sizes used in most current population studies of barred spirals. In this poster we present a first look at the properties of this catalog focusing in particular on the fraction of spirals with bars as a function of environment, stellar mass and star formation history. Barred spirals are a sensitive indicator of the dynamical state of a galaxy and we discuss the implications for the evolution of the spiral population.
Bamford Steven
Fortson Lucy
Galaxy Zoo Team
Lintott Chris
Schawinski Kevin
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