γ-ray DBSCAN: a clustering algorithm applied to Fermi-LAT γ-ray data - I. Detection performances with real and simulated data

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Table 1

Summary of the detections obtained for all the five sky fields for detections with a number of fake sources ≤6.

		True	Fake	K	ϵ	D _eff	Q

Sky field 1	44/70	47	1	6	0.19	1.00	1.00
	38/70	48	2	8	0.27	1.00	1.00
	53/70	50	3	5	0.17	0.89	0.84
	62/70	51	5	4	0.14	0.74	0.68
	53/70	53	6	5	0.18	0.89	0.80

Average	50.00	49.80	3.40	5.60	0.19	0.90	0.86
Sky field 2	62/70	47	0	4	0.11	0.76	0.76
	44/70	49	2	6	0.20	1.00	1.00
	53/70	51	3	5	0.17	0.91	0.86
	62/70	52	6	4	0.14	0.74	0.67

Average	55.25	49.75	2.75	4.75	0.15	0.85	0.82
Sky field 3	41/70	42	0	7	0.22	1.00	1.00
	44/70	45	2	6	0.20	0.98	0.94
	53/70	46	3	5	0.16	0.81	0.76
	62/70	48	5	4	0.14	0.69	0.63
	62/70	50	6	4	0.15	0.71	0.63

Average	52.40	46.20	3.20	5.20	0.17	0.84	0.79
Sky field 4	53/70	47	1	5	0.16	0.87	0.85
	53/70	50	5	5	0.18	0.85	0.77
	62/70	52	6	4	0.14	0.74	0.67

Average	56.00	49.67	4.00	4.67	0.16	0.82	0.76
Sky field 5	44/70	47	1	6	0.19	1.00	1.00
	44/70	50	2	6	0.20	1.00	1.00
	44/70	53	3	6	0.21	1.00	1.00
	44/70	55	5	6	0.22	1.00	1.00

Average	44.00	51.25	2.75	6.00	0.20	1.00	1.00

Notes. is the number of simulated sources with a number of simulated events larger than K, the number separated by the/symbol indicates the full number of simulated sources.

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