EDP Sciences
Free access
Volume 395, Number 3, December I 2002
Page(s) 747 - 751
Section Cosmology
DOI http://dx.doi.org/10.1051/0004-6361:20021275

A&A 395, 747-751 (2002)
DOI: 10.1051/0004-6361:20021275

Blind statistical indicators of the kinetic Sunyaev-Zel'dovich anisotropies

M. Sorel, N. Aghanim and O. Forni

IAS-CNRS, Université Paris Sud, Bâtiment 121, 91405 Orsay Cedex, France
(Received 9 July 2002 / Accepted 30 August 2002)

We report on a study aiming at characterising the kinetic Sunyaev-Zel'dovich (KSZ) effect through statistical criteria that can blindly indicate the presence of secondary anisotropies due to KSZ effect buried in the Cosmic Microwave Background (CMB) anisotropies. We show, using simulated maps, that some properties of the covariance coefficient between thermal Sunyaev-Zel'dovich (TSZ) and the temperature fluctuation map can be used in that purpose.

Key words: cosmology: cosmic microwave background -- methods: statistical

Offprint request: M. Sorel, Maud.Sorel@ias.u-psud.fr

© ESO 2002