Retraction Note to: Astrophys. Space Sci. (2019) 364:191

The Editors and the Publisher are retracting this article [1] because, upon further review, in their judgment the article proffers insufficient critical assessment of the material presented and literature cited, and fails to provide a solid underpinning for the speculative statements made in the article which, in their view, invalidates the conclusions drawn. The author does not agree to this retraction.