Radiation of neutron stars and the nature of quasars

We find a new mechanism of neutron star radiation wherein thermally excited helical waves of vortices in the superfluid core of a rotating neutron star produce its radiation spectrum. We find that neutron stars with a superfluid core of bosons (bosonic stars) are powerful sources of radio waves, their radiation spectrum is not Planck’s and similar to the spectrum observed from a class of quasi-stellar objects known as red blazars. We argue that bosonic stars constitute some part of blazar population. We find that radiated power produced by vortices can be comparable with the energy losses due to neutrino emission, which so far is considered as the most efficient mechanism of a neutron star cooling at high temperatures. The existence of blazars serves as a strong evidence of neutron stars with a superfluid Bose condensate. Subject headings: stars: neutron – dense matter – BL Lac objects: general – quasars: general