Upper limits on very-high-energy gamma-ray emission from core-collapse supernovae observed with H.E.S.S.

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Volume 626 (June 2019)

A&A, 626 (2019) A57

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Table 2

Upper limits (ULs) on the integrated flux above the energy threshold and above 1 TeV.

SNe	E_Th	Flux UL	Flux UL	UL on L	UL on L	ULs on Ṁ∕u_w
		(>E_Th)	(>1TeV)	(>E_Th)	(>1TeV)	Average time	Fit
	(TeV)	(10⁻¹³ cm⁻²s⁻¹)		(10⁴⁰ erg s⁻¹)		(10⁻⁵ M_⊙ yr⁻¹ km⁻¹ s)
SN 2004cx	0.18	10	1.9	13.0	2.5	6.7	3.2
SN 2005dn	0.21	2.2	0.41	6.2	1.2	3.8	0.26
SN 2008bk	0.21	6.0	4.8	0.18	0.15	1.4	0.4
SN 2008bp	0.21	29	5.5	46.7	8.9	15.9	12.3
SN 2008ho	0.33	16	7.7	52.8	25.4	9.4	5.3
SN 2009hf	0.21	20	5.3	111	29.5	19.9	15.9
SN 2009js	0.63	15	11	7.3	5.4	3.1	0.9
SN 2011ja	0.21	20	5.2	1.1	0.28	1.77	1.6
SN 2012cc	0.72	15	10	11.5	7.7	11.6	3.7
SN 2016adj	0.196	8.8	1.7	0.24	0.05	0.25	0.20

Notes. These ULs are computed assuming 95% confidence level and a power-law index of 2. The associated ULs on the luminosities are computed using the distances reported in Table 1. Upper limits on are derived from methods using the average time and a fit on the LCs, both using Eq. (3) (see text).

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