2016A&A...587A.151K


Query : 2016A&A...587A.151K

2016A&A...587A.151K - Astronomy and Astrophysics, volume 587A, 151-151 (2016/3-1)

Optimal binning of X-ray spectra and response matrix design.

KAASTRA J.S. and BLEEKER J.A.M.

Abstract (from CDS):

A theoretical framework is developed to estimate the optimal binning of X-ray spectra. We derived expressions for the optimal bin size for model spectra as well as for observed data using different levels of sophistication. It is shown that by taking into account both the number of photons in a given spectral model bin and their average energy over the bin size, the number of model energy bins and the size of the response matrix can be reduced by a factor of 10-100. The response matrix should then contain the response at the bin centre as well as its derivative with respect to the incoming photon energy. We provide practical guidelines for how to construct optimal energy grids as well as how to structure the response matrix. A few examples are presented to illustrate the present methods.

Abstract Copyright:

Journal keyword(s): instrumentation: spectrographs - methods: data analysis - X-rays: general

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 * alf Aur SB* 05 16 41.35871 +45 59 52.7693 1.33 0.88 0.08 -0.52 -0.96 G3III: 1159 0
2 NGC 5548 Sy1 14 17 59.5400291832 +25 08 12.603122268   14.35 13.73     ~ 2530 0
3 * alf Cen ** 14 39 29.71993 -60 49 55.9990   0.4 -0.1     G2V+K1V 886 0
4 Mrk 509 Sy1 20 44 09.7504483224 -10 43 24.727155528   13.35 13.12 10.7   ~ 1197 0
5 NAME Cas A SNR 23 23 24.000 +58 48 54.00     14.30     ~ 2591 1

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2022.05.22-14:27:06

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