We investigate how galaxies in VIPERS (the VIMOS Public Extragalactic Redshift Survey) inhabit the cosmological density field by examining the correlations across the observable parameter space of galaxy properties and clustering strength. The high-dimensional analysis is made manageable by the use of group-finding and regression tools. We find that the major trends in galaxy properties can be explained by a single parameter related to stellar mass. After subtracting this trend, residual correlations remain between galaxy properties and the local environment pointing to complex formation dependencies. As a specific application of this work we build subsamples of galaxies with specific clustering properties for use in cosmological tests.
@article{arxiv.1505.06330,
title = {A high-dimensional look at VIPERS galaxies},
author = {B. R. Granett and U. Abbas and C. Adami and S. Arnouts and J. Bel and M. Bolzonella and D. Bottini and E. Branchini and A. Burden and A. Cappi and J. Coupon and O. Cucciati and I. Davidzon and G. De Lucia and S. de la Torre and C. Di Porto and P. Franzetti and A. Fritz and M. Fumana and B. Garilli and L. Guzzo and P. Hudelot and O. Ilbert and A. Iovino and J. Krywult and V. Le Brun and O. Le Fèvre and D. Maccagni and K. Małek and A. Marchetti and C. Marinoni and F. Marulli and H. J. McCracken and Y. Mellier and L. Moscardini and R. C. Nichol and L. Paioro and J. A. Peacock and W. J. Percival and M. Polletta and A. Pollo and M. Scodeggio and L. A. M. Tasca and R. Tojeiro and D. Vergani and G. Zamorani and A. Zanichelli},
journal= {arXiv preprint arXiv:1505.06330},
year = {2017}
}
Comments
3 pages. To appear in Statistical Challenges in 21st Century Cosmology, Proceedings IAU Symposium No. 306, A. H. Heavens & J.-L. Starck, eds