2019/07/02 by R. Prasad, Prasad R, Ritam Mallick +2 · 1 citation
Chemistry · Earth and Planetary Sciences · Physics and Astronomy · #Amplitude #Astrophysics #Atomic physics #Chemistry #Combustion #Computational physics #Discontinuity (linguistics) #FOS: Physical sciences #Gamma-ray bursts and supernovae #Gravitational wave #High Energy Astrophysical Phenomena (astro-ph.HE) #High-pressure geophysics and materials #Mechanics #Neutron star #Nuclear Theory (nucl-th) #Optics #Physics #Pulsars and Gravitational Waves Research #RADIUS #Shock wave #Star (game theory) #astro-ph.HE #nucl-th
paper · pdf · doi:10.48550/arxiv.1907.01330
13 pages, 13 figures and 2 Tables
arxiv created 2019/07/02 · openalex publication_date 2019/07/02 · arxiv updated 2019/07/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
In this article, we perform a 2-d simulation of combustion of neutron star (NS) to hybrid star (HS). We assume that a sudden density fluctuation at the center of the NS initiates a shock discontinuity near the center of the star. This shock discontinuity deconfines NM to 2-f QM, initiating combustion of the star. This combustion front propagates from the center to the surface converting NM to 2-f QM. This combustion stops at a radius of 6 km inside the star, as at this density the NM is much stable than QM. Beyond 6 km although the combustion stops but the shock wave propagates to the surface. We study the gravitational wave signal for such a PT of NS to HS. We find that such PT has unique GW strain of amplitude 10-22. These signals last for few tens of μs and shows small oscillating behaviour. The power spectrum consists of peaks and at fairly high frequency range. The conversion to NS to HS has a unique signature which would help in defining the PT and the fate of the NS.