Research projects and highlights

Clustering-based redshift estimation

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Our team has developed and implemented the clustering redshift technique. It allows us to infer redshift information from spatial clustering measurements. This approach is radically different from the classical “photometric redshift” technique based on the apparent colors of sources. Read more…

Map of diffuse interstellar bands



By analyzing the light of hundreds of thousands of stars, galaxies and quasars, our group has created the largest map revealing the distribution of Diffuse Interstellar Bands in the Milky Way. These absorption features trace the distribution of unidentified molecules in the interstellar medium. This map was unveiled at the 225th meeting of the American Astronomical Society in Seattle. Read more...

Absorption line studies

Detection of intergalactic dust

Detection of Cosmic Magnification


an algorithm to rank papers on astro-ph

This work has been funded by grants from the NSF (AST-1109665, AST-1313302), NASA (NNX13AF36G) and fellowships from the Sloan and Packard foundations.