Simulations of Sunyaev - Zel ’ dovich maps and their applications

Sunyaev Zel ‘ dovich effect studies with MASTER

Our three frequencies radiometer MASTER, which allows low noise observations in three frequency intervals around 90, 220 and 345 GHz is being completed. We discuss the possibility of exploiting the MASTER's characteristics for studies of the Sunyaev Zel'dovich effect from the Antartic Plateau and propose an observational program from Dome C.

Filtering techniques for the detection of Sunyaev - Zel ’ dovich clusters in multifrequency CMB maps

The problem of detecting Sunyaev-Zel’dovich (SZ) clusters in multifrequency CMB observations is investigated using a number of filtering techniques. A multifilter approach is introduced, which optimizes the detection of SZ clusters on microwave maps. An alternative method is also investigated, in which maps at different frequencies are combined in an optimal manner so that existing filtering te...

ar X iv : a st ro - p h / 97 11 13 5 v 1 1 2 N ov 1 99 7 HOT ELECTRONS AND COLD PHOTONS : GALAXY CLUSTERS AND THE SUNYAEV - ZEL ’ DOVICH EFFECT

The Thermal Sunyaev Zel ’ dovich effect : a powerful probe for missing baryons

About 90% of baryons in the universe have thus far escaped direct observation. This is known as the missing baryon problem. The Sunyaev Zel’dovich effect (SZ effect) has the potential to directly measure the state of the majority of these missing baryons. The next generation CMB experiments such as AMIBA will provide an unbiased sample of the intergalactic medium through the SZ effect. The exis...

ar X iv : a st ro - p h / 03 05 46 5 v 1 2 3 M ay 2 00 3 Sunyaev - Zel ’ dovich cluster surveys using a large beam

Sunyaev Zel’dovich cluster surveys can be used to constrain cosmological parameters. Extracting clusters from the primary anisotropies and the unresolved background from very faint clusters is simple when the telescope beam size is small (∼ 1′), but could be difficult if the beam is larger (∼ 8′). By reference to examples, we show that this is possible by carefully designing the depth of the su...