Phase Space Constraints on Neutrino Luminosities

While the importance of phase space constraints for gravitational clustering of neutrinos (which are fermions) is well recognized, the explicit use of such constraints to limit neutrino emission from ultra energetic sources has not been stressed. Special and general relativistic phase space constraints are shown to limit neutrino luminosities in compact sources in various situations.Comment: 13 pages, 20 equation

Tidal Force of Black Holes

The tidal force is c secondary effect of the force Of gravity. It arises because the gravitational field is not constant across o body's diameter. When a body is acted on by the gravity Of another body, the gravitational acceleration con vary significantly between the necr side and the far side. This tends to distort shape of the body without altering its volume, Suppose that the gravitational field is due to one other body. Linearising Newton's law Of gravitation around the centre of the reference body yields an approximate inverse cube Along the axis through the centres Of the two bodies, this takes the for

Kerr Black Holes and Jets

during the sen*ster M.E. under the guidance of Prof. C Sivarorn, We are very thankful to Prof. C. for his guidance out and hoi. K. A Q•androshekor, H. O O, PG Dept Physics. Christ for and encouragement. Black holes A is a of pace-time that rTWSS in it that there is no way for a nearby object iO escape its gravitational pun. Since Our best thory of gravity Of the moment is Einstein' s general theory oi relativity, we have delve into some results Of this theory to understand black holes in The basic associated With 0 block hole is its Schwarzschild radius