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Galaxy redshifts

We explore galaxy redshift data collected through the VIPERS project. VIPERS stands for VIMOS Public Extragalactic Redshift Survey, and is an ESO Large Programme; VIMOS refers to Visible Imager Multi Object Spectrograph, an instrument on 'Melipal', the Very Large Telescope (VLT) Unit 3. In October 2013, the first Public Data Release (PDR-1) of the VIPERS project was released to the general public.

The author of this study has no involvement in the VIPERS project and is not affiliated with any of the VIPERS project partners. The analysis presented in this study is an example of the possibilities available today to hobby scientists in terms of working with data of professional quality collected through scientific observing campaigns. 

The central point of entry for everything related to VIPERS is the VIPERS project website which provides access to a wealth of information, to the PDR-1 data sets, and to some relevant background papers.

Acknowledgement  This example uses data from the VIMOS Public Extragalactic Redshift Survey (VIPERS). VIPERS has been performed using the ESO Very Large Telescope, under the "Large Programme" 182.A-0886. The participating institutions and funding agencies are listed at

A first set of analyses has been conducted using R, and is available through the rpubs website: 

Visualization of a subset of galaxies in the W4 field in the VIPERS PDR-1 data set.
See the above mentioned rpubs website for details about how this image was created. 

This case study is available in PDF format as a working paper in the Publications section.