Earth, Planets and Space

Table 2 Rigidity spectrum index for 12 Forbush decreases

From: Estimation of index of power law rigidity spectrum of cosmic rays using effective rigidity of multidirectional muon detector

No.	1	2	3	4	5	6	7	8	9	10	11	12
Year	2003	1998	2005	2001	2004	2000	2000	2001	2005	1998	2001	2001
DOY	302	268	135	118	22	160	195	86	254	312	310	229
〈k〉	0.88	0.86	0.89	0.88	0.85	0.87	0.86	0.87	0.85	0.84	0.83	0.81
n	−1.07	−1.04	−0.89	−0.91	−1.11	−1.09	−1.11	−0.98	−1.13	−1.28	−1.33	−1.23
γ _σ	−1.45	−1.66	−1.36	−1.45	−1.71	−1.53	−1.65	−1.58	−1.74	−1.82	−1.89	−2.0
γ _k	−0.80	−0.99	−0.70	−0.77	−1.07	−0.88	−1.00	−0.91	−1.10	−1.23	−1.33	−1.49
\(\tilde {\gamma }_{\mathrm {k}}\)	−0.81	−1.01	−0.73	−0.81	−1.06	−0.89	−0.99	−0.93	−1.09	−1.18	−1.27	−1.46

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