Advanced stream search for galaxy clusters with multifrequency microwave data

¹ Special Astrophysical Observatory, Russian Academy of Sciences, Nizhnii Arkhyz, 369167 Russia
² Kazan (Volga region) Federal University, Kazan, 420008 Russia
³ Saint Petersburg branch of the Special Astrophysical Observatory of the Russian Academy of Sciences, Saint Petersburg, 196140 Russia

^* e-mail: vo@sao.ru

Published online: 31 October 2018

Abstract

Based on the data from the Westerbork Northern Sky Survey performed at a frequency of 325 MHz in the range of right ascensions 0^h ≤ α < 2^h and declinations 29^o < δ < 78^o and using multifrequency Planck maps, we selected candidate objects with the Sunyaev-Zeldovich effect. The list of the most probable candidates includes 381 sources. It is shown that the search for such objects can be accelerated by using a priori data on the negative level of fluctuations in the CMB map with remote low multipoles in the direction to radio sources.