Extraction of cluster parameters from Sunyaev-Zeldovich effect observations with simulated annealing optimization
arXiv:astro-ph/0310149 · doi:10.1016/j.newast.2003.12.002
Abstract
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.
8 pages, 2 figures. code + user guide can be downloaded from http://krone.physik.unizh.ch/~hansen/sz/
References in corpus (16)
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Foreground Emission
- Cosmology with the Sunyaev-Zel'dovich Effect
- Determination of Inflationary Observables by Cosmic Microwave Background Anisotropy Experiments
- Efficient Cosmological Parameter Estimation from Microwave Background Anisotropies
- XMM- Newton Observation of the Coma Galaxy Cluster: The temperature structure in the central region
- The peculiar motions of early-type galaxies in two distant regions - VII. Peculiar velocities and bulk motions
- Relativistic Corrections to the Sunyaev-Zel'dovich Effect for Clusters of Galaxies. II. Inclusion of Peculiar Velocities
- Spectral distortion of cosmic background radiation by scattering on hot electrons. Exact calculations
- MITO measurements of the Sunyaev-Zeldovich Effect in the Coma cluster of galaxies
- First measurement of cluster temperature using the thermal Sunyaev-Zeldovich effect
- Stochastic optimization methods for extracting cosmological parameters from CMBR power spectra
- Triple Experiment Spectrum of the Sunyaev-Zeldovich Effect in the Coma Cluster: H_0
- Enhancement of Resonant Thermonuclear Reaction Rates in Extremely Dense Stellar Plasmas
- The impact of relativistic corrections and component separation in the measurement of the SZ effect and on the small angular scale non-Gaussianity of the CMB
- Normal Parameters for an Analytic Description of the CMB Cosmological Parameter Likelihood
- The effect of bandpass uncertainties on component separation
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- Constrained Cluster Parameters from Sunyaev-Zel'dovich Observations
- Cluster temperature profiles and Sunyaev-Zeldovich observations
- The estimation of the SZ effects with unbiased multifilters
- Cluster temperatures and non-extensive thermo-statistics
- Analytical Study on the Sunyaev-Zeldovich Effect for Clusters of Galaxies
- Reconstructing three-dimensional parameters of galaxy clusters via multifrequency SZ observations
- Study on the Solutions of the Sunyaev-Zeldovich Effect for Clusters of Galaxies