A model for microquasars of Population III

Context. Current simulations indicate that the first stars were formed predominantly in binary systems. Studying the contribution of the first accreting binary systems to the reionization and heating of the intergalactic medium requires formulating a concrete model for Population III microquasars....

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Detalles Bibliográficos
Autores principales:	Sotomayor Checa, Pablo Omar, Romero, Gustavo Esteban
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2019
Materias:	Ciencias Astronómicas γ-rays: general Radiation mechanisms: non-thermal Stars: Population III X-rays: binaries
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/124064
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-124064
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 γ-rays: general Radiation mechanisms: non-thermal Stars: Population III X-rays: binaries
spellingShingle	Ciencias Astronómicas γ-rays: general Radiation mechanisms: non-thermal Stars: Population III X-rays: binaries Sotomayor Checa, Pablo Omar Romero, Gustavo Esteban A model for microquasars of Population III
topic_facet	Ciencias Astronómicas γ-rays: general Radiation mechanisms: non-thermal Stars: Population III X-rays: binaries
description	Context. Current simulations indicate that the first stars were formed predominantly in binary systems. Studying the contribution of the first accreting binary systems to the reionization and heating of the intergalactic medium requires formulating a concrete model for Population III microquasars. Aims. We aim at constructing a complete model for microquasars with a Population III donor star. Methods. We considered that the mass loss of the star is exclusively caused by the spill of matter through the Roche lobe toward the black hole. We calculated the spectral energy distribution of the radiation produced by the accretion disk, the radiation-pressure-driven wind, and the relativistic particles in the jets, within the framework of a lepto-hadronic model. In addition, we estimated the effect on the reionization by the first microquasars. Results. We determine that Population III microquasars are powerful sources of ultraviolet radiation produced by the winds of their super-critical disks, and that they generate a broadband nonthermal emission in jets. Conclusions. Our results indicate that microquasars in the early Universe could have been important for the reionization and heating of the intergalactic medium.
format	Articulo Articulo
author	Sotomayor Checa, Pablo Omar Romero, Gustavo Esteban
author_facet	Sotomayor Checa, Pablo Omar Romero, Gustavo Esteban
author_sort	Sotomayor Checa, Pablo Omar
title	A model for microquasars of Population III
title_short	A model for microquasars of Population III
title_full	A model for microquasars of Population III
title_fullStr	A model for microquasars of Population III
title_full_unstemmed	A model for microquasars of Population III
title_sort	model for microquasars of population iii
publishDate	2019
url	http://sedici.unlp.edu.ar/handle/10915/124064
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bdutipo_str	Repositorios
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A model for microquasars of Population III

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