INTEGRAL probes the morphology of the Crab nebula in hard X-rays/soft -rays

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Volume 509 (January 2010)

A&A, 509 (2010) A33

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Table 1:

IBIS/ISGRI best-fit positions of the Crab in 3 energy bands.
	RA [ $^\circ$ ]	Dec [ $^\circ$ ]	$\sigma_{\mbox{\tiny {stat+syst}}}$ ['']	Shift ['']
Total, 20-40 keV	83.6317	22.0162	0.6	8.0
Total, 40-100 keV	83.6319	22.0159	0.7	6.7
Total, 100-200 keV	83.6321	22.0157	1.0	5.8
Off-pulse, 20-40 keV	83.6315	22.0164	0.7	9.0
On-pulse, 20-40 keV	83.6319	22.0160	0.7	7.0
Off-pulse, 40-100 keV	83.6316	22.0161	0.8	8.0
On-pulse, 40-100 keV	83.6322	22.0158	0.7	5.9
Off-pulse, 100-200 keV	83.6316	22.0162	1.2	8.2
On-pulse, 100-200 keV	83.6323	22.0155	1.1	4.8

The phase-resolved positions (on- and off- pulse) are also reported. The $1\sigma$ error on the position (3rd column) is the sum of the statistical and systematic uncertainties, where the systematic error is fixed to be 0.5'' (see Sect. 2.2). The last column gives the angular distance between the measured position and the pulsar (in arcsec).

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