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CCAPP Seminar - Guilhem Lavaux (Waterloo) "Cosmic velocity flows in the Local Universe: methods, observations"

February 26, 2013
All Day
PRB 4138

A valuable source of information on the distribution of dark matter and the growth of structures lies in the peculiar velocity field of the galaxies. After a short review on techniques available for their determination, I will present the results obtained on two recent techniques that I developed for estimating the large scale cosmic flows. These two techniques are based either on dynamical modeling of galaxy redshift catalog, or the detection of the kinetic Sunyaev-Zel'dovich signal in the Cosmic Microwave Background. I will show the results obtained when they are applied on the recent galaxy surveys and WMAP7 sky maps and some forecasts for PLANCK.

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