Browsing Articles by Subject "astrophysics"

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Note on the effect of a massive accretion disk in the measurements of black hole spins

Bambi, Cosimo; Malafarina, D.; Tsukamoto, Naoki (2014-06-25)

The spin measurement of black holes has important implications in physics and astrophysics. Regardless of the specific technique to estimate the black hole spin, all the current approaches assume that the space-time geometry ...
The general solution for relativistic spherical shells

Kijowski, J.; Magli, G.; Malafarina, D. (2005)

The general exact solution of the Einstein-matter field equations describing spherically symmetric shells satisfying an equation of state in closed form is discussed under general assumptions of physical reasonableness. ...