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The Galaxy Zoo citizen science website invites anyone with an Internet connection to participate in research by classifying galaxies from the Sloan Digital Sky Survey. As of April 2009, more than 200,000 volunteers had made more than 100 million galaxy classifications. In this paper, we present results of a pilot study into the motivations and demographics(More)
Isotopic abundance ratios 24 Mg: 25 Mg: 26 Mg are derived for 20 stars from high-resolution spectra of the MgH AX 0-0 band at 5140Å. With the exception of the weak G-band giant HR 1299, the stars are dwarfs that sample the metallicity range-1.8 < [Fe/H] <0.0. The abundance of 25 Mg and 26 Mg relative to the dominant isotope 24 Mg decreases with decreasing(More)
The TexOx Cluster (TOC) Survey has found more than 10 previously unknown galaxy clusters and cluster candidates in the first of four fields that it is surveying. These clusters form a unique sample of " radioactive " clusters: clusters rich in powerful radio sources. Preliminary photometry of a subset of fields with multi-color data shows that these(More)
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