Image of the week: Profiles of the matter density and electron fraction inside a massive neutron star

Our Image of the Week is taken from the JPhysG article Neutrino pair annihilation above merger remnants: implications of a long-lived massive neutron star, which was published within our Emerging Leaders Special Issue.

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Profiles of the matter density and electron fraction inside the MNS and in the innermost part of the disk at 40 ms inside the simulation, together with the incipient neutrino-driven wind. Image taken from A Perego et al 2017 J.Phys.G: Nucl. Part. Phys. 44 084007 © IOP Publishing, All Rights Reserved.

Specifically, this is a vertical slice (x = 0 plane) of the three dimensional domain for the matter density (left) and the electron fraction (right) at 40 ms of the simulation.

The solid lines on the density profile represent isodensity contours, ranging from 1014 g cm-3(black line) to 106 g cm-3 (light gray line). The densest part of the remnant corresponds to massive neutron star, while density contours of 1011 and 1010 g cm-3 track the outer boundary of the disk.

The expanding matter located above the remnant and characterized by low density and reduced neutron richness corresponds to the developing neutrino-driven wind.

Click here to read the full article.


CC-BY logoThis work is licensed under a Creative Commons Attribution 3.0 Unported License. Image taken from A Perego et al 2017 J.Phys.G: Nucl. Part. Phys. 44 084007, © IOP Publishing, All Rights Reserved.



Categories: Journal of Physics G: Nuclear and Particle Physics, JPhys+

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