PIRSA:15110082

Video URL

https://pirsa.org/15110082

Mysterious Magnetars: Maximum Stars

Soni, V. (2015). Mysterious Magnetars: Maximum Stars. Perimeter Institute for Theoretical Physics. https://pirsa.org/15110082

Soni, Vikram. Mysterious Magnetars: Maximum Stars. Perimeter Institute for Theoretical Physics, Nov. 05, 2015, https://pirsa.org/15110082 

          @misc{ scivideos_PIRSA:15110082,
            doi = {10.48660/15110082},
            url = {https://pirsa.org/15110082},
            author = {Soni, Vikram},
            keywords = {Cosmology},
            language = {en},
            title = {Mysterious Magnetars: Maximum Stars},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2015},
            month = {nov},
            note = {PIRSA:15110082 see, \url{https://scivideos.org/pirsa/15110082}}
          }

Vikram Soni Jamia Millia Islamia

Talk numberPIRSA:15110082
DOI10.48660/15110082
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Magnetars are exceptional neutron stars with the highest magnetic
fields ( 10^15 gauss) in the universe, an unusual quasi steady X
radiation (10^35 ergs/sec) and also produce flares which are some of
the brightest events (10^46 ergs in one fifth of a second) to be
recorded. There is no satisfactory model of magnetars.
The talk will cover neutron stars and a new model for the origin of
the magnetic fields in which magnetars arise from a high baryon
density ( phase transition) magnetized core which forms when they are
born. The core magnetic field is initially shielded by the ambient
high conductivity plasma. With time the shielding currents dissipate
transporting the core field out, first to the crust and then breaking
through the crust to the surface of the star. Recent observations
provide support for this model which accounts for several properties
of magnetars and also enables us to identify new magnetars.