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A Possible Throne- Zytkow Object

10 Jun 2014, 22:00 UTC
A Possible Throne- Zytkow Object
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Nearly 4 decades after it was first proposed by physicist Kip Thorne and astronomer Anna Zytkow, a paper by E. M. Levesque et al. (2014) reports on the discovery of a possible Throne- Zytkow object in the Small Magellanic Cloud - a satellite galaxy of the Milky Way. A Throne- Zytkow object is an exotic type of hybrid star consisting of a red supergiant with a neutron star tucked inside its core. Basically, it is two stars in one. This possible Throne- Zytkow object is a star called HV 2112 and it is probably the first of its kind to be found.There are 2 ways through which a Throne- Zytkow object might form. The first involves 2 massive stars in a tight binary system. The more massive star explodes as a supernova and leaves behind a neutron star. Subsequently, the companion stars evolves and expands to form a red supergiant, engulfing the neutron star in the process. The neutron star then spirals into the core of the red supergiant, producing a Throne- Zytkow object. Alternatively, a Throne- Zytkow object can form when a neutron star produced from an asymmetric supernova receives a ‘natal’ kick in the direction of its companion ...

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