SIMBAD references

2018MNRAS.475L..49M - Mon. Not. R. Astron. Soc., 475, L49-L51 (2018)

Explosions of Thorne-Zytkow objects.

MORIYA T.J.

Abstract (from CDS):

We propose that massive Thorne-Zytkow objects can explode. A Thorne-Zytkow object is a theoretically predicted star that has a neutron core. When nuclear reactions supporting a massive Thorne-Zytkow object terminate, a strong accretion occurs towards the central neutron core. The accretion rate is large enough to sustain a super-Eddington accretion towards the neutron core. The neutron core may collapse to a black hole after a while. A strong large-scale outflow or a jet can be launched from the super-Eddington accretion disc and the collapsing Thorne-Zytkow object can be turned into an explosion. The ejecta have about 10 M but the explosion energy depends on when the accretion is suppressed. We presume that the explosion energy could be as low as ∼1047 erg and such a low-energy explosion could be observed like a failed supernova. The maximum possible explosion energy is ∼1052 erg and such a high-energy explosion could be observed as an energetic Type II supernova or a superluminous supernova. Explosions of Thorne-Zytkow objects may provide a new path to spread lithium and other heavy elements produced through the irp process such as molybdenum in the Universe.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): accretion, accretion discs - stars: neutron - stars: peculiar - supergiants - supernovae: general

Simbad objects: 5

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2021.01.22-01:03:34

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