Multi-wavelength observations of H 2356–309 | Astronomy & Astrophysics (A&A)

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Volume 516 (June-July 2010)

A&A, 516 (2010) A56

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Table 2:

Results of power-law fits to the VHE spectra of H 2356-309.
Epoch	$E_{\rm min}$	$E_{\max}$	$\Gamma$	$I_{\circ}$ ^a	$\chi ^2$	NDF	$P(\chi^2)$
	[TeV]	[TeV]		[10^-13 cm^-2 s^-1 TeV^-1]
2004 (AH06)^b	0.165	1.041	$3.06 \pm 0.21_{\rm stat} \pm 0.10_{\rm syst}$	$3.08 \pm 0.75_{\rm stat} \pm 0.62_{\rm syst}$	3.9	6	0.69
2004^c	0.200	1.500	$2.97 \pm 0.19_{\rm stat} \pm 0.10_{\rm syst}$	$4.69 \pm 0.86_{\rm stat} \pm 0.94_{\rm syst}$	7.8	5	0.17
2005 $^{\hspace{0.1cm}}$	0.200	2.000	$2.99 \pm 0.39_{\rm stat} \pm 0.10_{\rm syst}$	$2.92 \pm 0.89_{\rm stat} \pm 0.58_{\rm syst}$	5.0	6	0.55
2006^d	0.200	2.000	$3.43 \pm 0.41_{\rm stat} \pm 0.10_{\rm syst}$	$2.13 \pm 0.79_{\rm stat} \pm 0.43_{\rm syst}$	0.7	2	0.70
Total	0.200	2.000	$3.06 \pm 0.15_{\rm stat} \pm 0.10_{\rm syst}$	$3.29 \pm 0.45_{\rm stat} \pm 0.66_{\rm syst}$	5.7	6	0.47

Notes. ^(a) The differential flux normalization is calculated at 1 TeV. ^(b) The AH06 entry is the previously published HESS result (Aharonian et al. 2006a) for the 2004 data and is not corrected for long-term changes in the optical efficiency of the system. ^(c) This 2004 entry is derived from the exact same data as presented in AH06, but with a correction (see text) applied to account for the optical efficiency changes within the data. The 2005, 2006 and total entries also have this correction applied. ^(d) Due to low statistics, the 2006 spectrum is determined using 4 bins/decade in energy instead of the 8 bins/decade used for the other photon spectra.

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