Cooling flow bulk motion corrections to the Sunyaev Zel'dovich effect
arXiv:astro-ph/0209336 · doi:10.1016/S1384-1076(02)00195-1
Abstract
We study the influence of converging cooling flow bulk motions on the Sunyaev-Zel'dovich (SZ) effect. To that purpose we derive a modified Kompaneets equation which takes into account the contribution of the accelerated electron media of the cooling flow inside the cluster frame. The additional term is different from the usual kinematic SZ-effect, which depends linearly on the velocity, whereas the contribution described here is quadratic in the macroscopic electron fluid velocity, as measured in the cluster frame. For clusters with a large cooling flow mass deposition rate and/or a small central electron density, it turns out that this effect becomes relevant.
accepted for publication in New Astronomy
References in corpus (7)
- Properties of the Intracluster Medium in an Ensemble of Nearby Galaxy Clusters
- An investigation of cooling flows and general cluster properties from an X-ray image deprojection analysis of 207 clusters of galaxies
- Kinetic Sunyaev-Zel'dovich effect from halo rotation
- Compton Scattering by Static and Moving Media I. The Transfer Equation and Its Moments
- Comptonization of an isotropic distribution in moving media: higher-order effects
- On cooling flows and the Sunyaev-Zel'dovich effect
- Prospects for Detection of Intracluster Gas Bulk Velocities Through the Sunyaev-Zel'dovich Effect