RX J1856.5-3754 as a possible strange star candidate |
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| Authors: | Jillian Anne Henderson Dany Page |
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| Institution: | (1) Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico, D.F., CP 04510, Mexico |
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| Abstract: | RX J1856.5-3754 has been proposed as a strange star candidate due to its very small apparent radius measured from its X-ray
thermal spectrum. However, its optical emission requires a much larger radius and thus most of the stellar surface must be
cold and undetectable in X-rays. In the case the star is a neutron star such a surface temperature distribution can be explained
by the presence of a strong toroidal field in the crust (Pérez-Azorín et al.: Astron. Astrophys. 451, 1009 (2006); Geppert
et al.: Astron. Astrophys. 457, 937 (2006)) We consider a similar scenario for a strange star with a thin baryonic crust to
determine if such a magnetic field induced effect is still possible.
This work was partially supported by PAPIIT, UNAM, grant IN119306. J.A.H. studies at UNAM and travel to London are covered
by fellowships from UNAM’s Dirección General de Estudios de Posgrado. |
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| Keywords: | RX J1856 5-3754 Strange star Neutron star |
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