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Showing posts from December 20, 2015

FIVE CONCENTRIC RINGS AROUND THE BLACK HOLE V404CYG

Image Credit: G. Vasilopoulos & M. Petropoulou. RGB image of the X-ray dust scattered rings observed by Swift/XRT. The Swift/XRT field-of-view is enclosed by the green circle, while a white circle of radius 9′ is overplotted for guiding the eye. The black hole is located at the center of the rings. First detection of X-ray dust scattered rings from the Galactic low mass X-ray binary V404 Cyg. The observation of the system with Swift/XRT on June 30 2015 revealed the presence of five concentric ring-like structures centred at the position of V404 Cyg.

UNIVERSE IS FINITE OR INFINITE?

Art by Moonrunner Design   At present there is no answer to this question. However I will try to list the hypothesys currently on the table with related issues.