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To convert photon counts of the detectors into absolute photon fluxes information is needed concerning the sensitivity of the instruments e.g., the collection area and reflectivity of the mirrors, the quantum efficiency of the counter gas in the detectors, or the transmission of detector windows and filters. Table G.1 contains the names of these calibration files with a short comment of their contents. The information of these files is demonstrated in an appropriate way in Figure G.1-Figure G.6.
|file name||file content|
|v$manpar:sass_area_b_new2.bin||effective area of XRT combined with efficiency of PSPC|
|v$manpar:drm_36_300_1.bin||detector response matrix (34 normalized PHA channels)|
|v$manpar:fil_trans_b_new1.bin||transmission of boron filter b|
|v$manpar:fil_trans_c_new1.bin||transmission of boron filter c|
|v$manpar:roe_inst_iz_3.map||modified instrument map|
|v$manpar:egrid.bid||grid of 729 non-equidistant energies|
Figure G.1: XRT effective areas combined with PSPC window transmission and quantum efficiency. The absorption features at 284.5eV and 532.7eV correspond to the binding energies of the inner electrons of C and O, respectively.
The basic information was taken from files v$manpar:sass_area_b_new2.bin and v$manpar:egrid.bid.
Figure G.2: Vignetting correction. Correct intensity depending on off-axis angle and extraction radius for source photons. The basic information (301 elements) was taken from file v$manpar:ccorr.dat.
Figure G.3: Detector Response Matrix (34 729 channels). The basic information was taken from file v$manpar:drm_36_300_1.bin.
Figure G.4: Modified Instrument Map. The basic information was taken from file v$manpar:roe_inst_iz_3.map. (512 512 pixels; 1 pixel corresponds to 14.9''!)
Figure G.5: Transmission of boron filter at 729 energy channels. The basic information was taken from files v$manpar:fil_trans_b_new1.bin, v$manpar:fil_trans_c_new1.bin
Figure G.6: Template spectrum of a blackbody and an absorbed power law.