Created by Unknown User (jukka.h.nevalainen_2@touchstonenetwork.net), last modified by Unknown User (jukka_1@touchstonenetwork.net) on May 14, 2015 02:40
In this page you find the spectra, responses and background files necessary to reproduce the spectral analysis in Nevalainen et al., 2010 (A&A, 523, 22) which yielded results summarised in Fig 1.
Fig.1: The average relative difference (diamonds) +- the error of the mean of the fluxes (solid line) and temperatures (dotted line) for different instrument pairs in the soft band (left side of the plot) and in the hard band (right side of the plot)
SASv9.0 was used for processing the XMM-Newton data with calibration information from December 2009 (see details).
XMM-Newton MOS1 and MOS2 spectra and responses are combined and referred to as MOS instrument.
Chandra data are processed with CIAO 4.2. (see details).
For most clusters the Chandra data are obtained with ACIS-S, but for some ACIS-I is used, and marked accordingly.
The script files bestfit....xcm will set up the best fit. In more detail:
The scripts use a 1-temperature phabs x mekal model.
The column density is from Kalberla et al. (2005) and the absorption cross-sections are from Balucinska-Church & McCammon (1992).
The scripts use the metal abundance table from Grevesse & Sauval (1998).
2. and 3. term in the script file name are the inner and outer radii of the spectrum extraction annulus in arcmin.
*hard*, *soft* and *wide* refer to the fits done in 2.0-7.0 keV, 0.5-2.0 keV and 0.5-7.0 keV bands, respectively.
*fe* refers to the Fe XXV/XXVI "constr." fit in [6.45 - 7.25]/(1+z) band, i.e. with a prior for the emission measure.
Unknown User (matteo.guainazzi_1@touchstonenetwork.net)
in principle I would say that the XSPEC scripts should: a) end with a "quit/yes" command; b) produce also automatically spectral plots and list of spectral parameters (via "tclout"). However, I am open to different opinions, and surely the script can be for the time being provided as they are, leaving any functional improvement to a later stage. The current version works fine
I would add to this page some plots, such as the comparison between the temperature and the fluxes in the hard and in the wide band
1 Comment
Unknown User (matteo.guainazzi_1@touchstonenetwork.net)