info:eu-repo/semantics/article
Evolutionary trajectories of ultracompact "black widow" pulsars with very low mass companions
Fecha
2012-07Registro en:
Benvenuto, Omar Gustavo; de Vito, María Alejandra; Horvath, J. E.; Evolutionary trajectories of ultracompact "black widow" pulsars with very low mass companions; IOP Publishing; Astrophysical Journal Letters; 753; 2; 7-2012; 33-36
2041-8205
2041-8213
CONICET Digital
CONICET
Autor
Benvenuto, Omar Gustavo
de Vito, María Alejandra
Horvath, J. E.
Resumen
The existence of millisecond pulsars with planet-mass companions in close orbits is challenging from the stellar evolution point of view. We calculate in detail the evolution of binary systems self-consistently, including mass transfer, evaporation, and irradiation of the donor by X-ray feedback, demonstrating the existence of a new evolutionary path leading to short periods and compact donors as required by the observations of PSR J1719-1438. We also point out the alternative of an exotic nature of the companion planet-mass star.