Relativistic neutron fireball from a supernova explosion as a possible source of chiral effect. The role of bremsstrahlung photons

Abstract

We develop the idea, proposed earlier, of a possible role of neutrons, released in a supernova (SN) explosion, as a source of polarized electrons that cause chiral asymmetry of organic molecules in interstellar gas-dust clouds. The neutrons are carried away from the dense SN shell by a relativistic neutron fireball with Lorentz factor γ of order 100. At the early stage of this carrying away, the ejected polarized electrons generate circularly polarized photons as a result of bremsstrahlung in the fireball plasma. The photons of energy near 5 eV in the ultraviolet part of the spectrum show a high efficiency of the chiral effect. In the favorable case of low absorption in the interstellar medium this mechanism may appear to be more (by two orders of magnitude) efficient than the chiral effect of the polarized electrons from the same fireball.