Spherically symmetric radiation in gravitational collapse

Thesis/Dissertation · Sat Jan 01 04:00:00 EST 1983

OSTI ID:5403602

Bridy, D J

This paper investigates a previously neglected mode by which a star may lose energy in the late stages of gravitational collapse to the black hole state. A model consisting of a Schwarzschild exterior matched to a Friedman interior of collapsing pressureless dust is studied. The matter of the collapsing star is taken as the source of a massive vector boson field and a detailed boundary value problem is carried out. Vector mesons are strongly coupled to all nucleons and will be radiated by ordinary matter during the collapse. The time dependent coupling between interior and exterior modes matched across the moving boundary of the collapsing star and the presence of the gravitational fields and their gradients in the field equations may give rise to a parametric amplification mechanism and permit the gravitational field to pump energy into the boson field, greatly enhancing the amount of boson radiation. The significance of a radiative mechanism driven by collapse is that it can react back upon the collapsing source and deprive it of some of the very mass that drives the collapse via its self gravitation. If the mass loss is great enough, this may provide a mechanism to slow or even halt gravitational collapse in some cases.

• Research Organization: Syracuse Univ., NY (USA)
• OSTI ID: 5403602
• Country of Publication: United States
• Language: English

Related Subjects

640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
657003* -- Theoretical & Mathematical Physics-- Relativity & Gravitation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BLACK HOLES
BOSONS
ELEMENTARY PARTICLES
GRAVITATIONAL COLLAPSE
GRAVITATIONAL FIELDS
GRAVITATIONAL RADIATION
HADRONS
MESON RESONANCES
MESONS
RADIATIONS
RESONANCE PARTICLES
STARS
VECTOR MESONS