Spectral Broadening of Radiation from Relativistic Collapsing Objects

Abstract

We study light curves and the spectral broadening of the radiation emitted during the finite interval of time by a surface of a collapsing object. We study a simplified model of monochromatic radiations from a spherical surface which is assumed to be falling freely. We discuss the possible way how to infer the physical parameters, such as the mass and radii of emission, from the light curves and spectral broadenings.

4 pages, 4 figures, Typos are corrected and substantial parts of main text are rephrased for more better presentation. 1 reference is added

References in corpus (6)

• Neutron Star Structure and the Equation of State
• Gravitational Bending of Light Near Compact Objects
• Challenging the paradigm of singularity excision in gravitational collapse
• Photon Emission from Dense Quark Matter
• Observable form of pulses emitted from relativistic collapsing objects
• Ray-tracing in four and higher dimensional black holes: An analytical approximation

Cited by in corpus (7)

• Calculating black hole shadows: Review of analytical studies
• Shadow of a naked singularity
• How does a collapsing star look?
• Observational distinction between black holes and naked singularities: the role of the redshift function
• The gravitational redshift of photons traversing a collapsing dust cloud and observable consequences
• The shadow of a collapsing dark star
• Shadow of higher dimensional collapsing dark star and blackhole