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Dynamical evolution of fermion-boson stars with realistic equations of state

Joseph E. Nyhan
(
- Holy Cross Coll.
)
,
Ben Kain
(
- Holy Cross Coll.
)

Jun 15, 2022

12 pages

Published in:

Phys.Rev.D 105 (2022) 12, 123016

Published: Jun 15, 2022

e-Print:

2206.07715 [gr-qc]

DOI:

10.1103/PhysRevD.105.123016 (publication)

View in:

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Abstract: (APS)

Fermion-boson stars are mixtures of the ordinary nuclear matter of a neutron star and bosonic dark matter. We dynamically evolve fermion-boson stars for the first time using a realistic equation of state for nuclear matter. We use our dynamical solutions to make a detailed study of the evolution of weakly and strongly perturbed static solutions. As examples of our findings, we identify a region of parameter space where weakly perturbed unstable static solutions migrate to a stable configuration, and we determine the criteria under which strongly perturbed stable static solutions will always move to a stable configuration instead of collapsing to a black hole.

Note:

12 pages, 6 figures. arXiv admin note: text overlap with arXiv:2201.02274

solution: static
boson: dark matter
fermion boson
stability
star
equation of state
nuclear matter
collapse
black hole
neutron star

References(90)

Figures(6)

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