Suicide incidents in India in relation with solar activity parameters and cosmic ray intensity (1989 to 2011)

Abstract

We studied the relation between the death due to suicide in India and of various solar activity (SA) parameters, for example, sunspot numbers (SSN), solar flare index (SFI), coronal index (CI) and cosmic ray intensity (CRI), observed during the period of 1989 to 2011. It is seen that the number of suicide incidents of male, female, and average is well correlated with yearly average of SSN, SFI, and CI and positively correlated with CRI. We have found good medium negative correlation with correlation coefficient -0.54, -0.53, and -0.54 between the average of SSN and male, female, total, and rate of suicide incidents occurring yearly. Negative correlation with correlation -0.55, -0.61, -0.57, and -0.52 had also been found between CI and female, total, and rate of suicide (per 1000000) suicide incidents. Further we have determined large negative correlation with correlation coefficient -0.65, -0.69, -0.67, and -0.62 between SFI and male, female, total, rate of suicide (per 1000000) suicide incidents. Positive correlation with correlation coefficient 0.59, 0.66, 0.61, and 0.58 had been found between yearly average of CRI and male, female, total, and rateof suicide (per 1000000) suicide incidents.   Key words: Sunspot numbers, solar flare index (SFI), coronal index (CI), cosmic ray intensity (CRI), suicide and suicide rate in India.