Speaker
Mr
Edouard Lecoq
(IAS, CNRS/Université Paris-Sud, Université Paris-Saclay, Orsay CEDEX, France)
Description
Recent stacking analysis of Sunyaev-Zel'dovich (SZ) oberservations of hundreds of superclusters have revealed the presence of the warm-hot intergalactic medium (WHIM) as a component of the intercluster gas. This indicates that superclusters are good targets to directly study the WHIM.
We are conducting a detailed study of two triple-cluster systems detected by Planck. We will jointly analyse the SZ data from Planck together with X-rays and galaxy distribution observations with XMM-Newton and VTL/FORS2 respectively. We will present the supercluster components including a possible direct detection of WHIM. We will discuss their physical properties (e.g. temperature, density, pressure, entropy) and their impact on the missing baryon problem.
| Affiliation | IAS, CNRS/Université Paris-Sud, Université Paris-Saclay, Orsay CEDEX, France |
|---|---|
| Topic | Hot and diffuse baryons |
Primary author
Mr
Edouard Lecoq
(IAS, CNRS/Université Paris-Sud, Université Paris-Saclay, Orsay CEDEX, France)
Co-authors
Dr
Alexander Kolodzig
(IAS, CNRS/Université Paris-Sud, Université Paris-Saclay, Orsay CEDEX, France)
Dr
Nabila Aghanim
(IAS, CNRS/Université Paris-Sud, Université Paris-Saclay, Orsay CEDEX, France)
Prof.
Mathieu Langer
(IAS, CNRS/Université Paris-Sud, Université Paris-Saclay, Orsay CEDEX, France)
Dr
Marian Douspis
(IAS, CNRS/Université Paris-Sud, Université Paris-Saclay, Orsay CEDEX, France)
Mr
Victor Bonjean
(IAS, CNRS/Université Paris-Sud, Université Paris-Saclay, Orsay CEDEX, France)
Dr
Etienne Pointecouteau
(IRAP, Université de Toulouse, CNRS, CNES, UPS, Toulouse, France* )
