Lindner R.R., Aguirre P., Baker A.J., Bond J.R., Crichton D., Devlin M.J., Essinger-Hileman T., Gallardo P., Gralla M.B., Hilton M., Hincks A.D., Huffenberger K.M., Hughes J.P., Infante L., Lima M., Marriage T.A., Menanteau F., Niemack M.D., et al. (2015)

THE ATACAMA COSMOLOGY TELESCOPE: THE LABOCA/ACT SURVEY OF CLUSTERS AT ALL REDSHIFTS

Revista : Astrophysical Journal
Volumen : 803
Número : 2
Páginas : 18pp
Tipo de publicación : ISI Ir a publicación

Abstract

We present a multi-wavelength analysis of 11 SunyaevZeldovich effect (SZE)-selected galaxy clusters (10 withnew data) from the Atacama Cosmology Telescope (ACT) southern survey. We have obtained new imaging from the Large APEX Bolometer Camera (345 GHz; LABOCA) on the Atacama Pathfinder EXperiment (APEX)telescope, the Australia Telescope Compact Array (2.1 GHz; ATCA), and the Spectral and Photometric ImagingReceiver (250, 350, and 500 μm; SPIRE) on the Herschel Space Observatory.24 Spatially resolved 345 GHz SZE increments with integrated signal-to-noise ratio (S/N)>5 are found in six clusters. We compute 2.1 GHz number counts as a function of cluster-centric radius and find significant enhancements in the counts of bright sources at projected radii theta=153+/-383 km/s .