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Scattering And Absorption of Light in Planetary Regoliths

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

Mass ejection by strange star mergers and observational implications.

A Bauswein¹, H-T Janka, R Oechslin

¹Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Strasse 1, D-85748 Garching, Germany.

Physical Review Letters

|August 8, 2009

Summary

The Galactic production rate of strangelets, crucial for cosmic ray flux calculations, depends on the bag constant in quantum chromodynamics (QCD). High bag constant values may allow strange stars to coexist with neutron stars.

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Area of Science:

* Astrophysics
* Nuclear Physics
* Particle Physics

Background:

* Strangelets are hypothetical particles composed of strange quark matter.
* Cosmic ray flux calculations require accurate estimates of strangelet production rates.
* The MIT bag model of quantum chromodynamics (QCD) is a theoretical framework for describing hadrons.

Purpose of the Study:

* To determine the Galactic production rate of strangelets.
* To assess the impact of strangelet production on cosmic ray flux.
* To investigate the relationship between strange star properties and the strange matter hypothesis.

Main Methods:

* Performing simulations of strange star mergers.
* Combining simulation results with stellar binary population estimates.
* Analyzing the dependence of strangelet flux on the QCD bag constant.

Main Results:

* The cosmic ray flux of strangelets is highly sensitive to the bag constant.
* For high bag constant values, the strangelet flux approaches zero.
* Compact strange stars (high bag constant) may not convert ordinary neutron stars.

Conclusions:

* The strange matter hypothesis is not ruled out by the detection of ordinary neutron stars.
* The MIT bag model's bag constant is a critical parameter in strangelet astrophysics.
* Further research is needed to refine strangelet production rate calculations.