2014/11/30 by Upasana Das, Banibrata Mukhopadhyay
Physics and Astronomy · #Astronomy #Astrophysics #Chandrasekhar limit #Gamma-ray bursts and supernovae #Magnetic field #Magnetohydrodynamic drive #Magnetohydrodynamics #Massive compact halo object #Physics #Pulsars and Gravitational Waves Research #Solar mass #Stars #Stellar, planetary, and galactic studies #Supernova #White dwarf #astro-ph.HE #astro-ph.SR #gr-qc
paper · pdf · doi:10.1088/1475-7516/2015/05/016
published as JCAP 05 (2015) 016 · 9+1 pages including 4 figures; version published in JCAP
arxiv created 2015/05/11 · openalex publication_date 2015/05/11 · arxiv updated 2015/05/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The topic of magnetized super-Chandrasekhar white dwarfs is in the limelight, particularly in the last few years, since our proposal of their existence. By full-scale general relativistic magnetohydrodynamic (GRMHD) numerical analysis, we confirm in this work the existence of stable, highly magnetized, significantly super-Chandrasekhar white dwarfs with mass more than 3 solar mass. While a poloidal field geometry renders the white dwarfs oblate, a toroidal field makes them prolate retaining an overall quasi-spherical shape, as speculated in our earlier work. These white dwarfs are expected to serve as the progenitors of over-luminous type Ia supernovae.