Extraction of cluster parameters from Sunyaev-Zeldovich effect observations with simulated annealing optimization

Details Extraction of cluster parameters from Sunyaev-Zeldovich effect observations with simulated annealing optimization Extraction of cluster parameters from Sunyaev-Zeldovich effect observations with simulated annealing optimization

2003-10-06

arxiv.org/abs/astro-ph/0310149v1

New Astron. 9 (2004) 279-283

Astronomy and Astrophysics

Astrophysics

8 pages, 2 figures. code + user guide can be downloaded from http://krone.physik.unizh.ch/~hansen/sz/

Scientific paper

10.1016/j.newast.2003.12.002

We present a user-friendly tool for the analysis of data from Sunyaev-Zeldovich effect observations. The tool is based on the stochastic method of simulated annealing, and allows the extraction of the central values and error-bars of the 3 SZ parameters, Comptonization parameter, y, peculiar velocity, v_p, and electron temperature, T_e. The f77-code SASZ will allow any number of observing frequencies and spectral band shapes. As an example we consider the SZ parameters for the COMA cluster.

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