Evolutionary trajectories of ultracompact "black widow" pulsars with very low mass companions

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, de...

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Detalles Bibliográficos
Autores principales:	Benvenuto, Omar Gustavo, De Vito, María Alejandra, Horvath, J.E.
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2012
Materias:	Ciencias Astronómicas pulsars: general pulsars: individual (PSR J1719-1438) stars: evolution
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/84690
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-84690
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Astronómicas pulsars: general pulsars: individual (PSR J1719-1438) stars: evolution
spellingShingle	Ciencias Astronómicas pulsars: general pulsars: individual (PSR J1719-1438) stars: evolution Benvenuto, Omar Gustavo De Vito, María Alejandra Horvath, J.E. Evolutionary trajectories of ultracompact "black widow" pulsars with very low mass companions
topic_facet	Ciencias Astronómicas pulsars: general pulsars: individual (PSR J1719-1438) stars: evolution
description	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.
format	Articulo Articulo
author	Benvenuto, Omar Gustavo De Vito, María Alejandra Horvath, J.E.
author_facet	Benvenuto, Omar Gustavo De Vito, María Alejandra Horvath, J.E.
author_sort	Benvenuto, Omar Gustavo
title	Evolutionary trajectories of ultracompact "black widow" pulsars with very low mass companions
title_short	Evolutionary trajectories of ultracompact "black widow" pulsars with very low mass companions
title_full	Evolutionary trajectories of ultracompact "black widow" pulsars with very low mass companions
title_fullStr	Evolutionary trajectories of ultracompact "black widow" pulsars with very low mass companions
title_full_unstemmed	Evolutionary trajectories of ultracompact "black widow" pulsars with very low mass companions
title_sort	evolutionary trajectories of ultracompact "black widow" pulsars with very low mass companions
publishDate	2012
url	http://sedici.unlp.edu.ar/handle/10915/84690
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bdutipo_str	Repositorios
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Evolutionary trajectories of ultracompact "black widow" pulsars with very low mass companions

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