Radiation efficiencies of the pulsars detected in the optical range
by
Sergey Zharikov(UNAM)
→
Europe/Stockholm
FA31
FA31
Description
Neutron stars are ideal astrophysical laboratories for testing
theories of dense matter physics in strongest gravitational / magnetic
fields and provide connections among nuclear physics, particle
physics, and astrophysics. Multi-wavelength observations radio
pulsars is an important tool for the study of not yet clearly
understood radiative mechanisms and spectral evolution of isolated
neutron stars. Optical radiation from pulsars can be produced via
non-thermal emission of relativistic particles in the pulsar
magnetosphere and thermal emission from neutron star surface. The
study of the non-thermal component permits the physical conditions in
pulsar magnetospheres to be probed. Detection of the thermal
component, combined with knowledge of distance enables one to
determine the total luminosity, effective surface temperature, and the
radius of a neutron star. The last is very important for
understanding of properties of the dense matter inside of neutron
stars.
During the last ten years a strong progress was reached in a study of
the optical radiation from the neutron stars and in my talk I will
present results obtained by us in this field.
