Galaxy clusters, submillimeter galaxies and cosmology with APEX
Research Project , 2010 – 2013

The purpose of the project is to investigate the properties of the hot gas in galaxy clusters and the possibility of using galaxy clusters as cosmological probes via multi-wavelength Sunyaev-Zeldovich (SZ) observations with instruments on APEX. A third, related, goal is to identify and characterize faint background submm galaxies that are lensed by massive galaxy clusters. All bolometer arrays on APEX will be used: the SZ-dedicated ASZCA, operating at 2 mm, LABOCA, at 870 microns, and SABOCA at 350 microns. The ASZCA observations are part of a large SZ survey carried out by an international collaboration and for which a Large Programme of 162 hours (9 days) has been granted by the Swedish time allocation committee, in addition to one month of German time allocated in 2009. I am also interested in theoretical work, mainly semi-analytical calculations using physical, empirical and phenomenological approaches as a way to gain a better understanding of phenomena related to the SZ effect in clusters of galaxies and cosmology.


Cathy Horellou (contact)

Professor at Radio Astronomy and Astrophysics


Swedish Research Council (VR)

Funding Chalmers participation during 2010–2013

Related Areas of Advance and Infrastructure

Sustainable development

Driving Forces

More information

Latest update